Sulfuric Acid Research Articles

Field Experimental Study of Sulfuric Acid Extraction from Acid Mine Drainage

Field Experimental Study of Sulfuric Acid Extraction from Acid Mine Drainage

The annual cycle and sources of relevant aerosol precursor vapors in the central Arctic during the MOSAiC expedition

Abstract. In this study, we present and analyze the first continuous time series of relevant aerosol precursor vapors from the central Arctic (north of 80° N) during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. These precursor vapors include sulfuric acid (SA), methanesulfonic acid (MSA), and iodic acid (IA). We use FLEXPART simulations, inverse modeling, sulfur dioxide (SO2) mixing ratios, and chlorophyll a (chl a) observations to interpret the seasonal variability in the vapor concentrations and identify dominant sources. Our results show that both natural and anthropogenic sources are relevant for the concentrations of SA in the Arctic, but anthropogenic sources associated with Arctic haze are the most prevalent. MSA concentrations are an order of magnitude higher during polar day than during polar night due to seasonal changes in biological activity. Peak MSA concentrations were observed in May, which corresponds with the timing of the annual peak in chl a concentrations north of 75° N. IA concentrations exhibit two distinct peaks during the year, namely a dominant peak in spring and a secondary peak in autumn, suggesting that seasonal IA concentrations depend on both solar radiation and sea ice conditions. In general, the seasonal cycles of SA, MSA, and IA in the central Arctic Ocean are related to sea ice conditions, and we expect that changes in the Arctic environment will affect the concentrations of these vapors in the future. The magnitude of these changes and the subsequent influence on aerosol processes remains uncertain, highlighting the need for continued observations of these precursor vapors in the Arctic.

Exploring the Cellulose Content on the Thermal and Mechanical Properties of Banana Peel Blend Tapioca Starch Bioplastic

Petrochemical polymers are convenient but harmful to humans and the environment. In response to growing environmental concerns over petroleum-based polymers, this study developed a biodegradable plastic made from tapioca and banana peel starch. Tapioca flour, banana peel starch, and 3g, 6g, and 9g of cellulose were used via solvent cast technique to fabricate bioplastic films. Fourier transform infrared spectroscopy shows strong peaks at 3400-3200 cm-1, corresponding to OH bond stretching vibrations for all obtained films. The bioplastics film displayed good performance in tensile testing when 6g of cellulose was used as compared to other formulations. Thermogravimetric analysis showed that adding cellulose enhanced the thermal properties where the temperature of 139.0394 ℃ (T20) and 140.16 ℃ (T50) shifted to a higher temperature when 9g cellulose was incorporated with the blend matrix. Interesting to note that 3g of cellulose absorbs the most water however 9g loses the least weight. This phenomenon is due to an increase in the cellulose-hydroxyl hydrogen bonding. On the other hand, the modified films are insoluble in acetic acid, moderately soluble in ammonia, and entirely soluble in sulphuric acid for solubility behaviour analysis. The banana peel starch blend and tapioca powder film modified with cellulose bioplastics have the potential to be applied ideally for food packaging.

Recovery of Titanium from Red Mud Using Carbothermic Reduction and High Pressure Leaching of the Slag in an Autoclave

Red mud is a by-product of alumina production, which is largely stored in landfills that can endanger the environment. Red mud, or bauxite residue, is a mixture of inorganic compounds of iron, aluminum, sodium, titanium, calcium and silicon mostly, as well as a large number of rare earth elements in small quantities. Although certain methods of using red mud already exist, none of them have been widely implemented on a large scale. This paper proposes a combination of two methods for the utilization of red mud, first by carbothermic reduction and then, by leaching under high pressure in an autoclave in order to extract useful components from it with a focus on titanium. In the first part of the work, the red mud was reduced with carbon at 1600 °C in an electric arc furnace, with the aim of removing as much iron as possible using magnetic separation. After separation, the slag is leached in an autoclave at different parameters in order to obtain the highest possible yield of titanium, aiming for the formation of titanium oxysulfate and avoiding silica gel formation. A maximal leaching efficiency of titanium of 95% was reached at 150 °C using 5 mol/L sulfuric acid with 9 bar oxygen in 2 h. We found that high-pressure conditions enabled avoiding the formation of silica gel during leaching of the slag using 5 mol/L sulfuric acid, which is a big problem at atmospheric pressure. Previously silica gel formation was prevented using the dry digestion process with 12 mol/L sulfuric acid under atmospheric pressure.

Fluorspar to fluorochemicals upon low-temperature activation in water.

The dangerous chemical hydrogen fluoride sits at the apex of the fluorochemical industry, but the substantial hazards linked to its production under harsh conditions (above 300 degrees Celsius) and transport are typically contracted to specialists. All fluorochemicals for applications, including refrigeration, electric transportation, agrochemicals and pharmaceuticals, are prepared from fluorspar (CaF2) through a procedure that generates highly dangerous hydrogen fluoride1-5. Here we report a mild method to obtain fluorochemicals directly from fluorspar, bypassing the necessity to manufacture hydrogen fluoride. Acid-grade fluorspar (more than 97 per cent CaF2) is treated with the fluorophilic Lewis acid boric acid (B(OH)3) or silicon dioxide (SiO2), in the presence of oxalic acid, a Brønsted acid that is highly effective for Ca2+ sequestration. This scalable process carried out in water at low temperature (below 50 degrees Celsius) enables access to widely used fluorochemicals, including tetrafluoroboric acid, alkali metal fluorides, tetraalkylammonium fluorides and fluoro(hetero)arenes. The replacement of oxalic acid with sulfuric acid gave comparable results for B(OH)3, but was not as effective when the fluorophilic Lewis acid was SiO2. A similar process also works with the lower-purity metspar. The production of fluorochemicals directly from fluorspar offers the possibility of decentralized manufacturing-an attractive model for the fluorochemical industry. With the renewed interest in innovative methods to synthesize oxalic acid via carbon dioxide capture and biomass6,7, and the challenges posed by our dependence on fossil fuels for sulfur and therefore sulfuric acid supply8,9, our technology may represent a departure towards a sustainable fluorochemical industry.

Evaluation of cactus mucilage as a green corrosion inhibitor for copper in sulfuric acid environment

This study investigates the corrosion inhibition performance of cactus mucilage for copper in 0.5 M H2SO4 solution. The cactus mucilage was extracted using a pure water extraction method and characterized using FTIR and GC-MS analyses. The inhibition efficiency was evaluated using potentiodynamic polarization and EIS techniques, while surface morphology was analyzed using SEM and AFM. The potentiodynamic polarization results revealed that cactus mucilage acts as a mixed-type inhibitor, with inhibition efficiency increasing from 78.6% at 100 mg L-1 to 94.5% at 600 mg L-1. The EIS measurements showed a significant increase in charge transfer resistance from 0.56 k? cm-2 in the uninhibited solution to 8.26 k? cm-2 with 600 mg L-1 cactus mucilage. The adsorption of cactus mucilage on the copper surface followed the Langmuir isotherm model, with a strong adsorption equilibrium constant of 23.6 × 103 M. Compared to other green inhibitors, cactus mucilage exhibited superior inhibition efficiency and sustainability advantages, making it a promising eco-friendly alternative for copper corrosion protection.

Spectrophotometric Analysis of Copolyarylene Phthalides and Their Copolymers with Methyl Methacrylate and Styrene

Sulfuric acid solutions of copolyarylene phthalides of the diphenyloxide series and their copolymers with methyl methacrylate and styrene were studied by the photometric method. According to spectral data, regardless of the ratio of single (α) and double (β + γ) phthalide groups in the macrochains of copolyarylene phthalides in their copolymers with methyl methacrylate, there are ~20–26 mol of MMA per 1 mol of phthalide units. The structure of copolyarylene phthalides is a determining factor in the formation of copolymers with styrene, in which either styrene units or phthalide fragments predominate (~15–40 and ~2–5 mol of styrene per mole of phthalide unit).

Valorization of White Lupin Straw Through Mild Dilute Acid Hydrothermal Treatment: A Sustainable Route for Monosaccharide and 5-Hydroxymethylfurfural Production

This study investigates the potential use of white lupine straw (WLS), an underutilized agricultural by-product, as a raw material to produce valuable biochemicals such as monosaccharides and 5-hydroxymethylfurfural (5-HMF) through hydrothermal pretreatment. The aim was to optimize mild reaction conditions to maximize the recovery of these products while minimizing degradation. The hydrothermal treatment of WLS in subcritical water with trace amounts of sulfuric acid was performed, followed by a two-step approach to evaluate the yields of hemicellulose and 5-HMF. The highest monosaccharide yield (163 g/kg) was achieved at temperatures between 174 and 181 °C and a holding time of 7–14 min, while the 5-HMF production was 139.9 g/kg at 199–203 °C and after 0.5–4.5 min. These results suggest that optimal 5-HMF production also increases the remaining solid residue. This study highlights the feasibility of WLS as a sustainable, low-cost biomass resource. It highlights the balance between temperature and time to maximize valuable product yields. The results contribute to advancing biorefinery processes by demonstrating that WLS can be effectively converted into bioethanol precursors and industrial chemicals, supporting circular bioeconomy principles and providing an environmentally friendly alternative to burning crop residues.

Study of the Dissolution of Tahoua Natural Phosphate by Mineral Acids: Hydrochloric Acid and Sulfuric Acid

The transformation of natural phosphorus into plant nutrient phosphorus, natural phosphates from Tahoua were dissolved in mineral acids, hydrochloric acid and sulfuric acid. Dissolution was effected at various concentrations (0.01M; 0.1M and 1M) and stirring times (1 hour, 3 hours and 5 hours). The results show that for all two acids (2), the dissolution rate is greater in concentrated acid solutions (1M) and for the 5-hour attack time. These rates are 38.37% and 34.87% respectively for sulfuric and hydrochloric acid solutions. Dissolution of Tahoua natural phosphate depends on the concentration of etching solutions and the etching time. With mineral acids (sulfuric and hydrochloric acid), for example, it increases with concentration. This dissolution offers interesting visions for perfecting phosphate fertilizers.

Solvent Extraction of Gallium and Germanium Using a Novel Hydroxamic Acid Extractant

The rare metals gallium and germanium are key strategic metals that are widely used in emerging industries. In this work, a novel hydroxamic acid extractant, BGYW, with low toxicity, was used for the selective solvent extraction of Ga ions and Ge ions from Zn, As, Cu, and Al ions in the solution from zinc smelting. The gallium and germanium ions were extracted efficiently under optimized conditions. Gallium ions were preferentially stripped using sulfuric acid, and germanium ions were stripped using an ammonium fluoride solution. Compared with the commercial extractant YW100, the dissolution loss of BGYW was reduced by 10 times. After 15 cycles, the germanium solvent extraction efficiency of BGYW remained at 100%, and the solvent extraction efficiency of gallium was about 98.7%, while the solvent extraction efficiency of both Ga ions and Ge ions using YW100 decreased to 20% after five cycles. This novel solvent extraction system exhibits considerable promise for application in zinc smelting processes for gallium and germanium solvent extraction.

Surface Modification of Cellulose Nanofiber (CNF) from Banana (<i>Musa paradisiaca</i>) Pseudo-Stem with Cetyltrimethylammonium Bromide (CTAB)

Modifying cellulose nanofiber (CNF) is necessary to improve its hydrophobic properties for broader applications. The surface of CNF from the banana pseudo-stem (Musa paradisiaca) was modified using a cationic surfactant, Cetyltrimethylammonium Bromide (CTAB). Principally, CNF surface sulfate ester group counterions are substituted for cetyltrimethylammonium (CTA+), which acts as a bulky, amphiphilic cation. Three steps produce CNF from banana pseudo-stem: delignification, bleaching, and acid hydrolysis. The acid hydrolysis process was optimized by adjusting the concentration of sulfuric acid. A 50% sulfuric acid concentration produced CNF with a size of 118 nm and the highest stability of its zeta potential value of -28.4 mV. The hydrophobicity of CNF increased after CTAB modification, as demonstrated by a change in surface charge from -28.4 mV to +3.63 mV. The modified CNF50-CTAB had a contact angle of 45.5º. In addition, CNF50-CTAB was unstable in water and formed stable colloidal suspensions in chloroform.

Phyotochemical Analysis of Bridelia scandens Willd a folk lore herbal drug a Review

Analytical study deals with the modern pharmaceutical analysis of the leaves of the drug. Here, organoleptic characters, physico-chemical parameters, UV spectrophotometric study, chromatographic study which were carried out for the standardization of both leaf powder and leaf oil samples are documented. The leaf powder sample of the plant yielded moisture, 10.1`%, ash, 6.65%, water soluble extractive 16.5% and methanol soluble extractive 22.3%. Whereas the leaf oil sample showed specific gravity 0.9650; refractive index 1.473; acid value 1.17; saponification value 241.4; ester value 240.23 and unsaponifiable matter 0.55%. UV spectrophotometric study of the leaf powder sample showed three absorptions peaks: the absorption being maximum at 218 nm followed by 272 nm and 666 nm. The spectra of the unsaponifiable matter of the leaf oil sample also showed three absorption peaks at 209 nm, 235 nm and 287 nm. Comparison of these two spectra reveals that their pattern is different. The chromatogram of both the samples obtained in day light showed 8 spots in the leaf powder sample and no spots in the other sample. On viewing under short wave UV radiation, the leaf powder sample revealed 3 spots and the other sample 2 spots. Among the spots the spot at Rf 0.66 was present in both the samples. After exposing to Iodine vapour almost all the spots viewed in day light were revealed in the first sample and 5 spots were found in the second sample. On spraying with vanillin sulphuric acid 6 spots were revealed in leaf powder sample and 5 spots in second sample. Among these 2 spots at Rf 0.46 and 0.66 were common in both the samples.

One Pot Synthesis of New Powerful Building Blocks in 1,8-Naphthalimide Chemistry

This communication reports a reliable one-pot synthetic protocol for preparation on a multigram scale of 3-bromo- and 3,4-dibromo-6-nitro-1,8-naphthalic anhydride from commercially available and economical 1,8-naphthalic anhydride. The synthetic steps used were nitration and selective bromination in sulfuric acid at room temperature. The reaction takes place under mild conditions and is completely controllable depending on the equivalents of the brominating reagent used. Both anhydrides are powerful building blocks in naphthalimide chemistry. In addition, their imides and esters were also synthesized.

Low feed intake at weaning reduces intestinal glutathione levels and promotes cysteine oxidation to taurine in pigs.

Weaning stress in pigs is associated with low feed intake and poor nutrient utilization. Cysteine is a sulfur amino acid with key roles in pig production, but how cysteine metabolism and requirements are affected by weaning stress should be better defined. The objective of this study was to determine the collective impact of weaning and feed restriction on tissue cysteine metabolism. Pigs were weaned at 21-d age without access to feed (W; 6.90 ± 0.81kg; n = 9; reflecting acute nutritional stress) or were not weaned and remained with the sow (NW; 6.81 ± 0.65kg; n = 8). At euthanasia (23-d age), blood, bile, and liver, jejunum, and ileum tissues were collected. Plasma, bile, and tissue amino acid and amino thiol concentrations were analyzed by HPLC. Activity of glutamate cysteine ligase (GCL) and glutathione synthetase (GSS), enzymes needed for glutathione (GSH) production, and cysteine dioxygenase 1 (CDO1) were determined with activity assays followed by HPLC analysis of reaction products. Plasma (271 versus 192 ± 19 µmol/L; P < 0.001) and liver (417 versus 298 ± 33 nmol/g; P < 0.05) Cys concentrations were increased in W compared to NW pigs. Despite greater plasma Cys, jejunum and ileum Cys content were not affected by weaning (P > 0.10), whereas γ-glutamylcysteine (γ-GlyCys), the immediate precursor of GSH, declined in both jejunum (14.3 versus 9.7 ± 1.4 nmol/g; P < 0.01) and ileum (11.2 versus 6.4 ± 0.8 nmol/g; P < 0.001) in W pigs. Glutathione content was lower in the jejunum (1379 versus 1720 ± 70 nmol/g; P < 0.05) and ileum (1497 versus 1740 ± 74 nmol/g; P < 0.05) in W pigs. In the jejunum, GCL activity tended to be greater (0.56 versus 0.39 ± 0.07 nmol γ-GluCys • mg-1 • min-1; P < 0.10), whereas GSS activity tended to be lower (1.11 versus 1.38 ± 0.10 nmol GSH • mg-1 • min-1; P < 0.10) in W compared to NW pigs. In the ileum, the activities of GCL and GSS were not affected by weaning (P > 0.10). Although liver CDO1 activity was not different between groups (P < 0.10), liver taurine was greater in W compared to NW pigs (5115 versus 2336 ± 912 nmol/g; P = 0.001). Bile concentrations of Cys (1203 versus 279 ± 103 µmol/L; P < 0.001) and cysteinylglycine (203 versus 117 ± 33 µmol/L; P < 0.10), the direct product of GSH degradation, were greater in W compared to NW pigs. Collectively, these results suggest that systemic Cys is not effectively utilized for gut GSH production in newly weaned pigs and is instead oxidized to taurine and eliminated in bile.

Effect of a Thermomechanical Pretreatment Coupled to Sulfuric Acid or Sodium Hydroxide Catalysis on Physicochemical Properties and Enzymatic Hydrolysis of Alfa Fibers (Stipa tenacissima L.)

Effect of a Thermomechanical Pretreatment Coupled to Sulfuric Acid or Sodium Hydroxide Catalysis on Physicochemical Properties and Enzymatic Hydrolysis of Alfa Fibers (Stipa tenacissima L.)

Investigation of impact of Calotropis procera extract for properties of mild steel in acidic mediums

Mild steel, widely used in gas and oil pipelines, is recognized for its remarkable capacity to absorb both internal and external energy, as well as its high tensile strength. Despite these attributes, the constant exposure to corrosive toxic substances within these pipelines poses a significant challenge. Over time, corrosion weakens the steel’s resilience to impact and increases the likelihood of failure or explosion due to the buildup of fluid pressure. To mitigate this issue, we explored an eco-friendly approach by introducing natural, non-toxic additives derived from the plant Calotropis procera (CP). The goal was to restore some of the steel's lost energy absorption capacity and enhance its resistance to corrosion and fracture.To test the effectiveness of Calotropis procera extract, we conducted weight-loss experiments using API 5L X70 steel in a solution containing 1 mol sulfuric acid and oil. We varied the concentration of CP plant extract in the solution, using 5%, 7%, 10%, and 13% to evaluate its corrosion inhibition properties. Surface examination was carried out using optical microscopy, which confirmed a corrosion inhibition rate of 50% in the CP + H₂SO₄ solution. To further investigate the mechanical performance, we performed Charpy impact tests in the same acidic environment with CP concentrations of 5%, 7%, and 10%. The results revealed that at a 10% concentration of plant extract, the steel exhibited an absorbed impact energy of 278 J, with a corresponding resilience value of 348.325 J/cm². These findings demonstrate the potential of Calotropis procera extract as an effective, sustainable solution for improving the durability of steel used in corrosive environments.

Characteristics of Solid Mineral Phase Transitions During Sulfuric Acid Production from Gaseous-Sulphur-Reduced Gypsum

The acid co-production of cement is a prominent research focus for the large-scale, high-value utilization of phosphogypsum in the context of dual-carbon strategies. This paper builds on extensive research conducted by its authors on the co-production of sulphoaluminate cement clinker through acid production from gaseous-sulphur-reduced phosphogypsum. The solid mineral phase transformations occurring in the kiln during this process are systematically studied, and the effects of various calcination regimes (temperature, time, and atmosphere) on the evolution of clinker mineral phases are elucidated. This paper provides basic data support for the gas-sulfur-reduced phosphogypsum-acid cogeneration of sulfoaluminate cement clinker processes, and promotes the realization of the large-scale high-value utilization of phosphogypsum resources. The generation of the clinker mineral phase anhydrous calcium sulphoaluminate (C4A3S̅) begins at 1100 °C. Increasing the calcination temperature and extending the calcination time promote C4A3S̅ formation. However, when the calcination temperature exceeds 1350 °C, C4A3S̅ decomposes, leading to the formation of low-activity C2AS. In a CO atmosphere, the main mineral phases in the clinker transform into C2AS and 12CaO·7Al2O3, owing to the decomposition of CaSO4, which inhibits C4A3S̅ formation. At calcination temperatures exceeding 1300 °C, a significant amount of C2AS appears in the calcined material, and 12CaO·7Al2O3 begins to form.

Ore sulfur of Golovnin Volcano, Kunashir Island

Research subject. Hydrothermal deposits of Golovnin Caldera. Aim. To study the epithermal volcanogenic ore formation. Key points. Until now, there has been a consensus on the exogenous sedimentary (colloidal) genesis of sulfur in volcanic lakes. Our observations and microstructure studies indicate the presence of sulfur melt at the bottom of Kipyaschee Lake. Drops of this melt are carried to the surface of the lake as part of a light gray foam. The significant differences of sulfur spherules in the concentration of sulfide mineralization, in its composition, as well as in the presence or absence of numerous opal inclusions are most simply explained by the capture of droplets in various parts of the sulfur melt and their subsequent movement by a gas stream passing through the melt. Elemental sulfur condensate is formed in bottom sediments as a result of forced cooling of endogenous gas flows by lake water. The main condensation of sulfur occurs here (96% or more of the total potential of fluid sulfur). Residual condensation of sulfur occurs in the aquatic environment. Finely dispersed sulfur condensate in a mixture with water is unstable and breaks down over time with the release of hydrogen sulfide and the formation of sulfurous and sulfuric acids. The activity of bottom hydrotherms and coastal unrest prevents the formation of colloidal sulfur sediment at the bottom of lakes. In the crater depressions at the bottom of the lakes of the Golovnin Caldera, sulfidization of its melt occurs simultaneously with the condensation of sulfur itself. Gravitational deposition of sulfides in the sulfur melt leads to their enrichment of the root parts of crater depressions, where pyrite ore bodies are formed in real time. Terrestrial sulfur deposits, together with the modified rocks overlying them, demonstrate the full profile of endogenous apical oxidation under gas-hydrothermal action: sulfur and sulfur-opal rocks up the section are replaced by gypsum-jarosite rocks and, further, by an “iron hat” of limonite-cemented breccias of the dome mantle. Conclusions. Observations, microstructure studies and molecular chemical modeling indicate the endogenous condensate origin of ore sulfur in the Golovnin Caldera and exclude its exogenous sedimentary genesis.

Prolonged alkali water irrigation: impacts of treatment strategies on soil health and microbial dynamics

BackgroundThe extent of natural salt-laden groundwaters used for irrigation is increasing worldwide, which is a fast-emerging threat to agroecosystems and global food security. The salt buildup in the soil is linked to deteriorated soil chemical, physical, and biological health and decreased land productivity. Alkali waters with high residual sodium carbonate (RSC) is one of the severe poor-quality waters that deteriorate soil. We evaluated soil microbial dynamics and soil health at critical growth stages of rice crop receiving two-decade-long irrigation with three levels of alkali water and two reclamation strategies. These included good-quality water (GQW), alkali water (ALKW) with an RSC concentration of 5 me L⁻1 (ALKW1), ALKW with an RSC concentration of 10 me L⁻1 (ALKW2), ALKW2 treated to neutralize RSC to 5 me L⁻1 using gypsum (CaSO4·2H2O; ALKW2 + GYP), and ALKW2 treated with sulfuric acid (H2SO4; ALKW2 + SA). Eleven microbial parameters were used to develop a soil microbial activity index (SMAI), and eight soil health indicators were correlated with changes in SMAI and crop productivity.ResultsThe SMAI peaked under good-quality water (GQW) conditions (0.84–0.89), while the lowest values were recorded under ALKW2 (0.06–0.18). Neutralized alkali waters, ALKW2 + SA and ALKW2 + GYP, significantly improved SMAI with corresponding values of 0.25–0.35 and 0.13–0.32, respectively. SMAI across all stages correlated positively (R2 = 0.91–0.98) with rice yield. Microbial activity varied with the crop growth stage, peaking at tillering. Gypsum application alone, aimed at neutralizing alkalinity from an RSC of 10 to 5 me L⁻1, proved insufficient in bringing the SMAI up to the ALKW1 (RSC level of 5 me L⁻1).ConclusionsThe application of dilute sulfuric acid demonstrated better results in restoring the soil microbial activity index than gypsum amendment; however, sulfuric acid treatment depends on native calcium carbonate (CaCO3) dissolution for its effectiveness. It may not suffice for soil stability improvement in the long term, especially when native CaCO3 is low. Therefore, integrating gypsum and dilute sulfuric acid for RSC neutralization is worthwhile; however, further assessment is needed to confirm their combined impact on soil biochemical and physical properties.

Alkoxylation of Ketone Mediated by N‐Heterocyclic Carbene Borane and Sulfuric Acid in Alcohol

AbstractIn this study, a novel method for the alkoxylation of ketones has been developed, employing sulfuric acid and N‐heterocyclic carbene boranes (NHC−boranes). The ketones are reduced using NHC−borane (diMe‐Imd‐BH3) and subsequently alkoxylate with sulfuric acid in alcohol solvents. Due to the stability of NHC−borane in the presence of both moisture and air, this reaction emerges as an effective and accessible approach for organic synthesis.