Inorganic Fluorine Compounds Research Articles

Antimicrobial activity of toothpastes against early childhood caries

Objective: assessing antimicrobial activity of toothpastes with different ingredient composition recommended for infants and toddlers. Materials and Methods. The study object was dental plaque of children with decompensated form of caries under the age of 3 years old. Seven toothpastes with different composition designed for early childhood were studied. Identification of detected microorganisms was carried out via mass spectrometry. Antibacterial activity was determined by agar diffusion and serial dilution methods. Results. Toothpastes containing xylitol, lactic enzymes and ingredients of medicinal herbs exhibited the absence of a microbial growth inhibition zone. Fluoride toothpastes were active against all tested microorganisms, and the final fluoride inhibitory concentration was 0.00016-0.0025%, depending on the fluoride concentration in the toothpaste. Conclusion. The least pronounced antimicrobial activity was detected in complex toothpastes with lactic enzymes and ingredients of medicinal herbs, as well as in samples with xylitol. Simple toothpastes with organic and inorganic fluorine compounds demonstrated the best bactericidal effect.

Chemical Aspects of Human and Environmental Overload with Fluorine.

Over the last 100–120 years, due to the ever-increasing importance of fluorine-containing compounds in modern technology and daily life, the explosive development of the fluorochemical industry led to an enormous increase of emission of fluoride ions into the biosphere. This made it more and more important to understand the biological activities, metabolism, degradation, and possible environmental hazards of such substances. This comprehensive and critical review focuses on the effects of fluoride ions and organofluorine compounds (mainly pharmaceuticals and agrochemicals) on human health and the environment. To give a better overview, various connected topics are also discussed: reasons and trends of the advance of fluorine-containing pharmaceuticals and agrochemicals, metabolism of fluorinated drugs, withdrawn fluorinated drugs, natural sources of organic and inorganic fluorine compounds in the environment (including the biosphere), sources of fluoride intake, and finally biomarkers of fluoride exposure.

Влияние кардиоваскулярной и метаболической патологии на сроки развития профессиональной хронической фтористой интоксикации у работников алюминиевого производства

With the aim of studying the effect of disorders of carbohydrate and lipid - tion exchange and associated cardiovascular disease at the time of development of occupational fluorosis assessed the prevalence of this disease among workers in aluminum production. A significant dissociation of carbohydrate and lipid metabolism indices against the background of high prevalence of overweight, obesity, arterial hypertension in workers in contact with elevated concentrations of inorganic fluorine compounds was established in comparison with patients of the comparison group who are not exposed to toxic substances (р=0,003, t=3,159). The increase in fasting glycemia was revealed already with the work experience of up to 10 years, which can testify to the danger of early development of type 2 diabetes in workers of aluminum production and the need for timely preventive measures in this category of workers. At the same time, patients with occupational fluorosis had significantly higher prevalence of carbohydrate metabolism disorders compared to trained workers without occupational fluorosis (р=0,006). It was revealed that professional fluorosis develops significantly earlier in workers with concomitant cardiovascular disease and metabolic changes.

Pyrohydrolytic determination of fluorine in coal: A chemometric approach

Corrosion effects in thermal power plants and environmental impact cause an increase in demand for fluorine analysis in coal. Solid sample decomposition, organic and inorganic fluorine compounds, volatility of fluorine species are problems which deserve a special attention. The aim of this work was to optimize the pyrohydrolytic (Phy) determination of fluorine content in the lignite coal. The parameters of pyrohydrolysis were evaluated and optimized by two statistical methods: Plackett–Burman (PB) design and response surface methodology (RSM). The content of fluorine in the absorption solution was measured by fluoride ion-selective electrode. The limit of detection of the proposed method was 20 μg g −1, with good recovery (95%) and relative standard deviation less than 5%. With such benefits as simplicity, precision, accuracy and economy, this method is highly suitable for routine analysis of coal.

Health effects of fluorine and its compounds

Fluoride, the ionic form of fluorine, is a natural component of the biosphere and 13th most abundant element in the crust of the earth. It is, therefore, found in a wide range of concentrations in virtually all inanimate and living things. Many trace elements perform a definite function in human metabolism and the question of the value of fluoride, always found in the body, has been raised. Much evidence suggesting that the inclusion of fluoride in drinking water has beneficial as well as adverse effects on human health was obtained. Either alone or in combination with calcium and/or vitamin D, it is used in high daily doses for the treatment of osteoporosis. Although organic fluorine compounds are used in medicine and commerce, the inorganic fluorine compounds are of greater importance toxicologically because they are more readily available. The major pathway of fluoride elimination from the human body is via the kidney. When renal function deteriorates, the ability to excrete fluoride markedly decreases, possibly resulting in greater retention of fluoride in the body. At this point, more research is needed to evaluate the effects of physiological variables on the fluoride metabolism in humans.

Inorganic fluorides production in fluor treatment of phosphate raw material in the USSR

The manufacture of inorganic fluorine compounds by phosphate raw material treatment ranks in the USSR a significant place as to providing country with fluoride products. At present over 35% of technical fluoride salts in the country is produced by mineral fertilizers plants. P:F ratio in apatite cocentrate is 5.8, while its 4.1 in Karatau phosphate concentrate obtained by flotation. With due account of the commercially possible value of fluorine recovery (40–60%), fluorine reserves in phosphate rocks of the USSR 2–3 times exceed those in fluorspar. The fluorine utilization of phosphate raw materials is realized almost exclusively from Kola apatite concentrate. In the manufacture of fertilizers and phosphoric acid by the wet process, the off-gases containing fluorine are trapped in the scrubbing systems, the thus obtained silicohydrofluoric acid solutions are fed for further treatment with the formation of AlF3, Na3AlF6, Na2SiF6, K2SiF6, (NH4)zSiF6,NH4HF2 and NaF. The various fluoride production routes are used in the USSR, which secure in most of cases product quality meeting the requirements of world market. Moreover, the production processes of granular fluoride salts, calcium fluoride have been developed; in continuous operation are the plant production of anhydrous hydrogen fluoride and hydrofluoric acid from bifluoride-fluoride ammonium. The USSR is exporting aluminium fluoride, Na2SiF6 and is prepared to increase the export of fluorine products if the respective production lines are retrofitted.

Analysis of complex industrial samples by gas chromatography; a report on selected past activities

A review of past activities concerning selected industrial analytical problems is given. This includes the following question: preparation of pure gas mixtures to be used for calibration, catalytic conversion of ester and pyridin samples to carbon dioxide and a one-point calibration method using peak heights, both for quantitative analysis, analysis of gas mixtures containing fluorine and inorganic fluorine compounds and the determination of the oxygen and fluorine content of the sample, separation and identification of hydrocarbons in shale oil and petroleum fraction samples, and analysis of wine.

ChemInform Abstract: VIBRATIONAL SPECTRA OF THE BINARY FLUORIDES OF THE MAIN GROUP ELEMENTS

AbstractReview: Übersicht über anorganische binäre Fluoride sowie Matrixisolierungsuntersuchungen.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better

RETURN TO ISSUEPREVAdvertisementNEXTWhat you do with inorganic fluorine compounds is your business. Ours is helping you do it betterCite this: Chem. Eng. News 1978, 56, 37, 1Publication Date (Print):September 11, 1978Publication History Published online7 November 2010Published inissue 11 September 1978https://doi.org/10.1021/cen-v056n037.p001Copyright © 1978 American Chemical SocietyArticle Views57Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (144 KB) SUBJECTS:Fluorine Get e-Alerts

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

What you do with inorganic fluorine compounds is your business. Ours is helping you do it better.

Book Reviews

Book reviewed in this article:Toxic Properties of Inorganic Fluorine Compounds, by R. Y. EagersIntroduction to Hospital Dentistry. Editor, B. L. Douglas.Scandinavian Journal of Dental Research. Editor, J. J. Pindborg

Book Review: Toxic Properties of Inorganic Fluorine Compounds. By R. Y. Eagers

Angewandte Chemie International Edition in EnglishVolume 9, Issue 12 p. 970-970 Book Review Book Review: Toxic Properties of Inorganic Fluorine Compounds. By R. Y. Eagers Heinz Oettel, Heinz OettelSearch for more papers by this author Heinz Oettel, Heinz OettelSearch for more papers by this author First published: December 1970 https://doi.org/10.1002/anie.197009701AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume9, Issue12December 1970Pages 970-970 RelatedInformation

Toxic Properties of Inorganic Fluorine Compounds

Toxic Properties of Inorganic Fluorine Compounds

Toxic Properties of Inorganic Fluorine Compounds.

Toxic Properties of Inorganic Fluorine Compounds.

Detection of fluorine on the nanogram scale; inorganic and organic fluorine compounds

Very sensitive nanogram techniques for the detection of fluorine are described. They are based upon the evolution of hydrofluoric acid which is revealed by the Cerium(III)-Alizarin Complexone reagent. The methods are suitable for the detection of fluoride in waters, minerals, salts as well as in organic compounds including complex pharmaceutical preparations.