White Paint Research Articles

Probing creation process of paintings from Tarsila do Amaral (1886–1973) by MA-XRF and differential X-ray attenuation

Three artworks from Brazilian painter Tarsila do Amaral (1886–1973), “Manteau Rouge” (1923), “Vendedor de Frutas” (1925), and “Urutu” (1928), from different creative phases of the artist, were analyzed by macro X-ray fluorescence scanning (MA-XRF) technique. Based on the obtained elemental maps, it was possible to deduce the pigments employed by Tarsila during her different artistic phases. To investigate the ground applied in the paintings, XRF spectra were simulated with Zinc White and Lead White pigments in two categories: pure pigments, and another as ground. These simulated results were compared with experimental XRF data, allowing the discussion of the presence of Pb and Zn pigments in different layers of the paintings. From elemental maps, it was possible to observe repaintings in the “Manteau Rouge” and “Vendedor de Frutas”. Based on the results, it is possible to conclude that the painter utilized the same pigments consistently throughout her artistic phases, while exhibiting changes in her painting style.

Amorphous silica: Prepared by byproduct microsilica in the ferrosilicon production and applied in amorphous silica-TiO2 composite with favorable pigment properties

In order to improve the output value of microsilica produced during the ferrosilicon production process as well as to reduce pollution, amorphous silica was prepared from microsilica by calcination, alkali leaching and acid precipitation. The relevant parameters were optimized and the relevant mechanism was proposed. The results of X-ray diffraction, scanning electron microscope, infrared spectra and X-ray fluorescence spectroscopy indicated that the prepared amorphous silica is of high grade (96.06%) and high whiteness (90.2%). It was then used to prepare amorphous silica/TiO2 composite pigment material, which has similar pigment properties with TiO2. Therefore, this study provides a feasible way of producing high purity amorphous silica from the byproduct during the ferrosilicon production process, which not only reduces pollution, but also provides high-value substitute for white pigment.

Superhydrophobic polytetrafluoroethylene/polyvinylidene fluoride coating for passive daytime radiative refrigeration

Passive daytime radiation refrigeration (PDRR) is a new type of refrigeration that requires no extra energy consumption and also cools objects by reflecting radiant heat from sunlight and mid-infrared wavelengths. However, the properties of ordinary radiative refrigerative (RR) materials are degraded by surface dust accumulation during use. In this work, superhydrophobic radiative refrigerative (SRR) polytetrafluoroethylene/polyvinylidene fluoride (PTFE/PVDF) coating was prepared by one-step spraying method with PTFE as white pigment, PVDF as binder, and N, N-dimethylacetamide (DMAC) as solvent. The PTFE/PVDF coating (containing 20 wt% of PTFE) exhibits synergistic effect with high water contact angle (CA, 153.7°), low water sliding angle (SA, 7.7°), high solar reflectivity (SR, 93.7%), and high infrared emissivity (IE, 93.3%). Under a clear sky and direct sunlight, the coating achieves a RR temperatures of 5.8 °C (shielding convection heat) and 5.3 °C (without shielding convection heat) respectively under two measurement conditions. In addition, the coating exhibits excellent self-cleaning properties that can automatically remove dust accumulated on the surface with the assistance of rainfall, thus maintaining its RR performance for a long time. More importantly, the mechanical robust self-cleaning function also provides excellent corrosion resistance and anti-UV aging ability. The PTFE/PVDF SRR coating developed in this work is simple to fabricate, can be applied over a large area, and has good durability, which is conducive to promoting the practicalization of RR coatings.

Investigating the impact of using modified cool materials by titanium dioxide (TiO2)-based photocatalytic self-cleaning nanoparticles in urban facades on urban microclimate parameters

PurposeOn the one hand, one of the most important global strategies to improve thermal comfort in urban spaces is using cool materials (high albedo materials) in urban facades. On the other hand, using cool materials in urban facades is a big challenge. Over time, the albedo of cool materials that modified by titanium dioxide (TiO2)-based photocatalytic self-cleaning materials (PSTiO2) does not decrease. In fact, its self-cleaning property prevents the loss of the initial albedo of the material. The self-cleaning performance of these materials was investigated in previous researches. However, their thermal performance in urban space has not been investigated yet. This paper studied the performance of these materials on the urban square facade. Design/methodology/approachThe thermal performance of PSTiO2 on the thermal comfort of the urban square was evaluated by ENVI-met(v4). The results simulated by ENVI-met software with field measurements in the urban Square were compared. Field measurements of air temperature were conducted on 22 July and 30 March. FindingsThe results showed that these materials, despite their self-cleaning properties, have significant thermal impact in the urban environment. Using plaster modified by PSTiO2 (albedo 0.6) improved slightly by nearly 0.2 °C the thermal comfort of the urban square. Whereas, white paint modified by PSTiO2 (albedo 0.9) reduced the physiologically equivalent temperature (PET) by 0.5 °C, because reflection of solar radiation increased between the buildings facades. The simulation results showed that due to the space is more enclosed in the square entrance, the mean radiant temperature (Tmrt) increased. As a result, PET index rose too. Originality/valueThis study shows that employing cool and self-cleaning materials in the urban facades of Jolfa Square, in addition to have self-cleaning property, is effective in the amount of thermal comfort of the square. In the parts of the square where the enclosure is less, an improvement in thermal comfort was observed. The performance of the cool and self-cleaning materials in the facade in terms of thermal comfort is completely dependent on the physical parameters of the urban space.

Laser Removal of Cosmetic Eyebrow Tattoos with a Picosecond Laser

This current retrospective study, including 98 patients aged 21 to 71 years, aims to assess the safety and the efficiency of a picosecond 755 nm/532 nm laser in the removal of complex eyebrows tattoos. Patients were treated with a picosecond laser at 755 nm with fluences ranging from 0.69 to 6.37 J/cm2 and at 532 nm with a fluence of 0.64 or 1.12 J/cm2. Analyses of Variance (ANOVA, single factor) and comparison tests (F-test) were conducted. A total of 70 subjects finished the full treatment. An average of three laser sessions were necessary to achieve the patients’ objective (total removal, attenuation for redo, or correction). The number of sessions was significantly higher if cosmetic tattoos contained visible warm pigments (red, orange, yellow). A total of 18 patients experienced immediate grey discoloration, although this was not found to significantly influence the number of laser sessions. The main side effects were redness, swelling, and bleeding points. One patient experienced a bruise immediately after laser shots. This retrospective study has shown the picosecond laser to be safe and efficient in removing complex cosmetic tattoos. Further investigation is ongoing to assess optimal parameters for treating red and white pigments.

Raman spectroscopy of yellow organic pigments of large Korean Buddhist paintings from the late Joseon dynasty (17th–19th centuries)

AbstractThe yellow coloring of the organic and inorganic pigments used in large Buddhist paintings during the late Joseon dynasty (17th–19th centuries) is herein analyzed using Raman spectroscopy and non‐invasive component analysis via p‐XRF. p‐XRF analyses of 194 yellow points on 12 large Buddhist paintings confirmed the use of gold, orpiment, and organic pigments; however, the yellow chromophoric elements of the organic pigments were not detected. The confirmed colors ranged from light yellow (close to white) to bright and dark yellow, but microscopic analysis revealed no particles or crystals. Accurate identification of pigments comprising light elements or organic compounds is challenging, which limits their identification via p‐XRF. In contrast, Raman spectroscopy of the samples presumed to be organic pigments detected gamboge in the samples, either alone, mixed with a white inorganic pigment such as lead white to express yellow, or overlaid upon such a pigment. These results demonstrate the utility of Raman spectroscopy in the analysis of organic pigments and provide a guide for the identification of coloring materials used in cultural heritage artifacts.

How the monarch got its spots: Long-distance migration selects for larger white spots on monarch butterfly wings.

Elucidating the adaptations that promote flight in animals can aid the understanding of evolution and species divergence, and/or provide inspiration for aerospace engineering and the design of better aerial vehicles. The famed long-distance migration of monarch butterflies in North America still holds many questions and opportunities for inspiration. For example, there is little research on whether the monarch's primary wing colors themselves (black, orange, or white) have any aerodynamic or migration function. Dark colors on wings of other animals have recently been shown to aid flight by enhancing solar absorption, which reduces drag forces. However, too much black surface could be problematic for monarchs, which are exposed to increasing amounts of solar energy along their flightpath. This paper describes the results of two related investigations that attempt to elucidate the importance of wing color to the monarch migration. By measuring the color proportions of nearly 400 monarch wings collected at different stages of their journey, we found, surprisingly, that successful migrants tended to have less black on their wings (about 3% less), but also more white pigment (about 3% more); monarchs have a band of light-colored marginal wing spots. Second, image analysis of museum specimens revealed migratory monarchs had significantly larger white spots, proportional to the wing area, than most non-migratory, New World Danaid butterflies, which argues spot size has evolved along with migratory behavior. Combined, these findings strongly suggest that the long-distance migration itself selects for larger white spots every fall, so that only those individuals with large spots will survive to pass on their genes. Further experimental work is needed to elucidate how the spots aid the migration, but it is possible that they enhance aerodynamic efficiency; other work by the authors demonstrates how alternating white and black pigment on wings can reduce drag. These results will serve as a useful starting point for such endeavors, which should improve understanding of one of the world's most fascinating animal migrations, and also provide practical knowledge for the field of aerospace engineering.

Synthesis of Novel White Pigment by Phosphoric Acid Treatment of Zinc Oxide

Synthesis of Novel White Pigment by Phosphoric Acid Treatment of Zinc Oxide

Preparation of white ZrO2 coating with low solar absorptance on aluminum alloy by plasma electrolytic oxidation

The plasma electrolytic oxidation (PEO) coatings with the color of black or white have good prospects in thermal control application. However, it still remains a challenge for obtaining the PEO coatings on Al alloys to achieve high whiteness that in turn could give adequate low absorption thermal control characteristic. Herein, a bright white oxide coating mainly composed of ZrO2 was successfully prepared on 6061 aluminium alloy by PEO process from a fluorozirconate electrolytic solution. The microstructure and composition of the coating were studied by SEM, EDS, XRD and XPS. The thermal control properties were measured by UV-VIS-NIR spectrophotometer and infrared emissivity spectrometer, respectively. The stability of thermal control properties of the coating was also evaluated by simulated space environmental tests. The corrosion protection performances of the coating were investigated by potentiodynamic polarization and salt spray tests. Results show that the oxide coating is composed of t-ZrO2 as well as a little of m-ZrO2 and γ-Al2O3 with a porous microstructure. The coating exhibits low solar absorptance (αs) of 0.205 and high emissivity (ε) of 0.84, which is comparable for the typical space white paints. In addition, the coating owns excellent stability in thermal control properties under simulated space environments. The coating has a good durability in corrosive environment though it provides only slight improvement in corrosion resistance of 6061 aluminium alloy due to the presence of many larger micropores in the coating.

Leucopterin, the white pigment in butterfly wings: structural analysis by PDF fit, FIDEL fit, Rietveld refinement, solid-state NMR and DFT-D.

Leucopterin (C6H5N5O3) is the white pigment in the wings of Pieris brassicae butterflies, and other butterflies; it can also be found in wasps and other insects. Its crystal structure and its tautomeric form in the solid state were hitherto unknown. Leucopterin turned out to be a variable hydrate, with 0.5 to about 0.1 molecules of water per leucopterin molecule. Under ambient conditions, the preferred state is the hemihydrate. Initially, all attempts to grow single crystals suitable for X-ray diffraction were to no avail. Attempts to determine the crystal structure by powder diffraction using the direct-space method failed, because the trials did not include the correct, but rare, space group P2/c. Attempts were made to solve the crystal structure by a global fit to the pair distribution function (PDF-Global-Fit), as described by Prill and co-workers [Schlesinger et al. (2021). J. Appl. Cryst. 54, 776-786]. The approach worked well, but the correct structure was not found, because again the correct space group was not included. Finally, tiny single crystals of the hemihydrate could be obtained, which allowed at least the determination of the crystal symmetry and the positions of the C, N and O atoms. The tautomeric state of the hemihydrate was assessed by multinuclear solid-state NMR spectroscopy. 15N CPMAS spectra showed the presence of one NH2 and three NH groups, and one unprotonated N atom, which agreed with the 1H MAS and 13C CPMAS spectra. Independently, the tautomeric state was investigated by lattice-energy minimizations with dispersion-corrected density functional theory (DFT-D) on 17 different possible tautomers, which also included the prediction of the corresponding 1H, 13C and 15N chemical shifts in the solid. All methods showed the presence of the 2-amino-3,5,8-H tautomer. The DFT-D calculations also confirmed the crystal structure. Heating of the hemihydrate results in a slow release of water between 130 and 250 °C, as shown by differential thermal analysis and thermogravimetry (DTA-TG). Temperature-dependent powder X-ray diffraction (PXRD) showed an irreversible continuous shift of the reflections upon heating, which reveals that leucopterin is a variable hydrate. This observation was also confirmed by PXRD of samples obtained under various synthetic and drying conditions. The crystal structure of a sample with about 0.2 molecules of water per leucopterin was solved by a fit with deviating lattice parameters (FIDEL), as described by Habermehl et al. [Acta Cryst. (2022), B78, 195-213]. A local fit, starting from the structure of the hemihydrate, as well as a global fit, starting from random structures, were performed, followed by Rietveld refinements. Despite dehydration, the space group remains P2/c. In both structures (hemihydrate and variable hydrate), the leucopterin molecules are connected by 2-4 hydrogen bonds into chains, which are connected by further hydrogen bonds to neighbouring chains. The molecular packing is very efficient. The density of leucopterin hemihydrate is as high as 1.909 kg dm-3, which is one of the highest densities for organic compounds consisting of C, H, N and O only. The high density might explain the good light-scattering and opacity properties of the wings of Pieris brassicae and other butterflies.

Non-Invasive Study of the Pigments of a Painting on Copper with the Inscription “Boceto di Pablo Veronese” on the Back

The palette used on a small painting on copper support, with the inscription “Boceto di Pablo Veronese” on the back, was characterized. Non-invasive techniques such as X-ray diffraction (XRD) and hand-held X-ray fluorescence (XRF) were proven to be highly effective for this. The objectives of the proposed work were twofold. On the one hand, the objective was the study, in situ, of the pigments of a painting on a copper support. On the other hand, it was to enrich the literature related to the study of paintings on metal supports, since few related studies are available despite the relatively large number of such 16th and 17th century paintings from Italy and Northern Europe. The results of the analysis showed a copper support with a base layer of gypsum mixed with ochre earths. Atop this layer is a sketch with lead white in the lighter areas and bone black in the darker shadow areas, suggesting that the artist performed a preliminary study of the luminosity of the scene. Finally, the upper or pictorial layer consists of a mix of pigments with some lead white to lower saturation and increase lightness, particularly evident in the flesh tones. The resulting palette thus includes lead white, vermilion, bone black, Naples yellow, and lazurite pigments. These results are compared to Veronese’s other paintings, as well as to those of certain contemporary artists, and the use of the resulting pigments in 16th and 17th century Italian painting techniques is discussed.

Raw Smectite from the Guarapuava–Parana–Brasil Saturated with Copper Ions and Its Properties

In this study, raw smectite (Sm), from the Guarapuava–Parana–Brasil region, was saturated with copper ions (Cu-Sm) by ion exchange and the samples Sm and Cu-Sm were used in crystal violet (CV) adsorption and applied as an antimicrobial and antifungal hybrid pigment. Samples (Sm and Cu-Sm) were used to remove crystal violet (CV) dye from aqueous media, simulating wastewater. Samples after use as adsorbents were characterized and named smectite/adsorbed dye (Sm/Dye) and copper smectite/adsorbed dye (Cu-Sm/Dye); and they were applied as hybrid pigments with antimicrobial action. The Sm and Cu-Sm were characterized by X-ray diffractometry (XRD), energy dispersive X-ray fluorescence (EDXRF), vibrational spectroscopy (FTIR), Zeta potential (ζ), scanning electron microscopy (SEM), and colorimetry (CIE L*a*b*), enabling the identification of the presence of intercalated copper ions and on the smectite surface. The adsorption assays were carried out to evaluate the effects of initial dye concentration and contact time. Tests for application as a hybrid pigment showed good compatibility with commercial white paint being applied on plaster blocks and later photoaging and chemical stability tests were performed in acid and basic environments, both were discussed by colorimetry (CIE L*a*b*), thus being able to relate it to the color variation (∆E). The samples (Sm, Cu-Sm, Sm/Dye, and Cu-Sm/Dye) were dispersed in white paint at 10% and 20% (% w/w) to evaluate the ability to inhibit different microorganisms. The modification with copper ions promoted an increase in the adsorptive capacity relative to the raw smectite and provided antibacterial and antifungal action to the hybrid pigment against Escherichia coli, Staphylococcus aureus, Listeria monocytogenes, and Candida albicans. The Cu-Sm and Cu-Sm/Dye samples showed excellent results against all studied microorganisms and reveal successful materials that can be used in environments that require microbiological protection.

Preliminary Study on the Feasibility of Radiation Technique for Mural Protection

Murals are a significant cultural heritage of humanity, and one of the conservation studies is to control the growth of microorganisms. General biocide agents can be used to preserve murals while also providing new organic carbon sources and increasing environmental pollution. In recent years, radiation technology has shown promising prospects for use in heritage protection. Five microorganisms often found in murals were irradiated with an electron beam in this study, and six mineral pigments were tested for color change, Raman spectra and pigment layer cohesion after irradiation. The result showed that irradiation at 20 kGy can basically eliminate Pseudomonas citronellolis, Bacillus sporothermodurans, Streptomyces vinaceus, and Streptomyces griseolus from the culture medium, but only inhibited the growth of Penicillium flavigenum. Lead white pigment showed a color difference of 5.56 (∆E*97) after irradiation, but lead tetroxide, azurite, malachite, ferrous oxide, and cinnabar showed no visible changes. The Raman spectra of the irradiated and unirradiated samples were basically the same. E-beam radiation did not affect the surface cohesion of the pigment layer. This preliminary work shows the potential of electron-beam technology in mural protection and provides basic research and relevant experience for the subsequent in situ mural protection work.

Increasing photovoltaic system power output with white paint albedo – a scenario in Al-Mausaib City using PVSyst. software

<p>Sundry circumstances influence on the photovoltaic (PV) performance, <br />a ground albedo one of an important factor that effect on the PV panel work. This research study is to improving the output solar structures fixed on horizontal of the buildings of the even surface with adjustable roof albedo; this study incorporates integrating innovative PV and levelheaded surface techniques to boost the energy production of photovoltaic system. The modeling and simulation study were utilized as part of the system to examine the effectiveness of the solar structure installed on concrete horizontal even tiles structures with a roof albedo of 0.25, After that, white paint was applied to the concrete surface in front of the solar system to raise the albedo to 0.70. The important findings demonstrate that a rise in surface albedo from 0.25 to 0.7 will contribute to an increase in yearly solar PV power generation. The case study scenario in Al-Mussaib Technical College (L at 32° 46′ 59.99″ N, 44° 19′ 0.01 E), this paper will study the effects of two different materials top surface on the yield of PV module, for these studies, the PVSyst. program version 7.2 is utilized to analysis data from PV solar stand-alone systems.</p>

Characterization of calcined red soil applied in the removal of methylene blue dye from wastewater to produce a hybrid pigment

AbstractWe obtained natural red soil (RS), rich in iron, from the region of Palotina in the state of Paraná, Brazil. The RS sample was purified by suspension in water and sieved to remove plant particulates. It was then treated thermally at 800°C to remove organic volatiles; this sample was called RS800. The samples were characterized using X-ray diffraction, X-ray fluorescence, infrared and electronic spectroscopy, ζ-potential analysis and scanning electron microscopy. Colorimetric studies were performed according to the CIEL*a*b* system. Tests have shown that RS800 has the ability to remove methylene blue (MB) dye from wastewater. Thus, it was used as an adsorbent at various temperatures (25, 35, 45°C). According to the Langmuir model, the maximum adsorption capacity (qmax) was 23.256 mg g–1 (25°C). Unexpectedly, increasing temperature reduced qmax to 21.659 mg g–1 at 35°C and to 21.186 mg g–1 at 45°C. Therefore, RS800 must be used at room temperature (25°C), making its application in large-scale wastewater treatment feasible. After using RS800 as an adsorbent, the solids were filtered, dried, pulverized, and used as hybrid pigments in commercial white paints. Pigmented paints were used to paint a plaster specimen and colorimetric measurement was performed. These paints were tested for colour stability in acidic and alkaline environments. The results indicate that RS800 is efficient in the treatment of water contaminated with cationic dyes and can be reused as a hybrid pigment.

Pulverised Dried Banana Fiber Mixed with White Elastomeric Paint as a Thermal Insulator on an External Wall

Pulverised Dried Banana Fiber Mixed with White Elastomeric Paint as a Thermal Insulator on an External Wall

Aluminosilicatehalloysite nanotubes as a tool of modern nanocomposites for food safety

Nanoscale natural clay minerals, which include Si, O, Al, and Mg, are a class of environmentally safe inorganic materials with unique structures and diverse morphologies, including nanorods, nanofibers, and nanotubes. Aluminosilicatehallusite nanotubes (HNTs) are relatively new objects of research in materials science, they have a number of environmental and economic advantages compared to carbon nanotubes (CNTs), as well as fullerene and graphene. Natural halloysites are an order of magnitude cheaper than their synthetic counterparts. The location of halloysite is quite common, for example, in the KryvyiRih region and other places in other countries. Due to their high environmental friendliness and bioavailability, HNTs can be used in medicine, including as drug carriers with controlled release. HNTs can also exhibit (photo) catalytic properties, have high adsorption properties in relation to heavy metals Cu(II), Pb(II), Cd(II), Zn(II), Cr(IV) and Co(II) and solutions, containing dyes, pesticides and some other organic pollutants, as well as toxic gases (ammonia, hydrogen sulfide). HNTs in combination with other metals, such as Mn, Ti, acquire various practical applications. HNTs were introduced to ensure better functional photo(electro)catalytic properties of composites that can be a substrate, especially in the case of nanotube oxide decoration. For example, titanium, a white pigment, non-toxic, is included in the list of food additives and is designated as E171. Contained in food products: candies, cookies, cakes, chicken fillet, crab sticks, chewing gum, chocolate products. Although the addition of titanium dioxide in food products is permitted by many official documents, there is insufficient data in the scientific literature regarding the potential danger of titanium dioxide to the human body. Increased interest in TiO 2 is due to its high photocatalytic activity, which allows to realize processes of destruction of organic compounds, including ecotoxicants, into safe products. HNTs, or materials based on them, have found many useful applications in the treatment of drinking water and industrial wastewater. The structural features of HNTs make it possible to obtain new composite materials based on them, such as, for example, imohalite nanotubes (INTs) of a wide functional purpose and to determine the physicochemical patterns of their formation. Therefore, the relevance of the work lies in the combination of hallusite nanotubes and titanium dioxide as composite materials using electrosynthesis, and the analysis of the influence of the phase composition, photocatalytic activity of the composite material on the safety of its practical use, including in the food industry. Key words: aluminosilicates, nanotubes, nanomaterials, inner surface, safety, halluasite, titanium dioxide, composites, nanocomposites, synthesis.

Effects of Mg2+ doped TiO2 defect structures on TiO2 anatase-to-rutile phase transition

Rutile TiO2 is a competitive white pigment due to its high refractive index and inertness. Uncolored Mg2+ is a promising dopant for the production of TiO2 pigment because it promotes the anatase-to-rutile phase transition of TiO2 at lower temperatures (vs. Al3+). However, research on the impact of Mg2+ concentration on TiO2 phase transition is scarce, and the defect structures are still unknown. In this study, the effect of Mg2+ doping concentration on TiO2 phase transition was investigated, and the defect structures of Mg2+ doped TiO2 were proposed. Over 96% conversion of anatase to rutile was achieved with 1.48% Mg doping at 875 °C (vs. Al3+, 1050 °C) for 1 h. By using the Rietveld method, two defect structures—interstitial Mg2+ (Mgint) and substitute Mg2+ (Mgsub)—were quantified. A correlation between the defect structures and the effect on phase transition was established. At low Mg doping level (<1%), the Mgint dominates and weakly promotes the phase transition; At high Mg doping level (>1%), the Mgsub dominates and strongly promotes the phase transition. Additionally, a possible mechanism for the formation of defect structures and how that affects phase transition was proposed. The present results may provide insights into TiO2 pigment production and modulation of TiO2 defects for phase transition control and other applications.

Influence of the addition of crushed glass on the physical and chemical properties of lead white oil paint

Influence of the addition of crushed glass on the physical and chemical properties of lead white oil paint

Study of a passive radiative cooling coating on chemical storage tanks for evaporative loss control

All-day passive radiative cooling is a promising cooling technique achieves cooling without any energy input, thereby attracting tremendous attention. Most of the studies focus on building applications, but there remains a lack of information on other potential applications of radiative cooling systems. Herein, we report an application of a polymeric passive radiative cooling coating (PRCC) on the exterior surface of chemical storage tanks, which is often overlooked but exhibits great potential to efficiently control the evaporative loss of the chemicals. The PRCC exhibits strong solar reflectivity (96.2%) and emissivity (95%) in the mid-infrared wavelength range. According to the results of an outdoor test on a small-scale chemical storage container, the PRCC achieves 81.4%, 54.1%, and 19.8% of chemicals saved compared with a raw container, container painted with commercial white paint (CWP), and the shaded raw container, respectively. A numerical simulation is also conducted to estimate the chemical standing loss from an industrial large-scale chemical storage tank. It is found that the PRCC can achieve a saving of over 50% of the chemical compared with commercial white paint for a chemical storage tank, showing a promising potential to be applied on chemical storage systems.