Tris antimony

The Hquid antimony tris(isooctyl thioglycolate) is then treated with the required additives to prepare the commercial products. 

Antimony tris(isooctylthioglycolate) has found use in pipe formulations at low levels. Its disadvantage is that it cross-stains with sulfide-based tin stabilizers (122). Barium—zinc stabilizers have found use in plasticized compounds, replacing barium—cadmium stabilizers. These are used in mol dings, profiles, and wire coatings. Cadmium use has decreased because of environmental concerns surrounding certain heavy metals. 

Alkyl silyl ethers are cleaved by a variety of reagents Whether the silicon-oxygen or the carbon-oxygen bond is cleaved depends on the nature of the reagent used Treatment of alkoxysilanes with electrophilic reagents like antimony tri-fluonde, 40% hydrofluonc acid, or a boron tnfluonde-ether complex results in the cleavage of the silicon-oxygen bond to form mono-, di-, and tnfluorosiloxanes or silanes [19, 20, 21) (equations 18-20)... 

Antimony, tris(ethyldithiocarbonato)-stereochemistry, 1,82 structure, 1,82 Antimony, tris(oxalato)-stereochemistry, 4, 82 structure, 1, 82... 

Chemicals such as magnesium and lead oxides, calcium hydroxide, antimony tri- and pentasulphide can be used as boosters for organic accelerators for some products, such as thick walled large volume articles, e.g., rollers. 

Antimony tris(isooctylthioglycolate), for PVC polymers, 25 671 Antimony trisulfide, 3 57, 64—65 Antimussol, commercial defoamer,... 

HF In die presence of fluorinating agents, such. as antimony tri- and penta-fluorides. Used as aerosol propint, refrigerant and fire extinguisher... 

The most important range for inorganio chemicals is between 1 40 and 1 70. But there are some substances, such as certain oxides and sulphides, whose indices lie well above this range, or even well above 2 0. Media which are liquid at room temperature and have such high refractive indices are not available, but certain mixtures of substances which solidify to glasses may be used. A little of the medium is melted on a microscope slide, the substance under examination is dusted into the melt, a cover-glass is pressed on, and the slide is then allowed to cool. Substances which have been used in this way are mixtures of piperine with arsenic and antimony tri-iodides (for indices 1 7-2 1), mixtures of sulphur and selenium (2-0-2-7)—for details, see Larsen and Berman (1934)—and mixtures of the halides of thallium (Barth, 1929). 

Antimony tri- and pentafluorides are mostly used as strong Lewis acids. There are a few cases, however, where they are used for fluorinating purposes as well. Thus tetrachlorocy-... 

Aside from these three classes (species with unfilled inner subshells, with unpaired electrons, or with two different oxidation states of the same element), there are a number of colored inorganic substances about which generalizations may be set up only with difficulty. Among these are many of the elementary nonmetals, a large number of covalent salts (such as mercuric iodide, cadmium sulfide, silver phosphate and lithium nitride), a number of nonmetal halides (iodine monochloride, selenium tetrachloride, antimony tri-iodide, etc.), and the colored ions, chromate, permanganate, and Ce(H20) v, whose central atoms presumably have rare-gas structures. 

The Environmental Protection Agency (Cincinnati, OH, USA) reported investigations regarding the health effects of antimony and its compounds. The conclusion of the report is as follows Oral reference dose values (RfDo) were derived for antimony and selected compounds based on the LOAEL (lowest-observed-adverse-effect-level) for antimony of 350/zgkg" day" associated with potassium antimony tartrate (15) in the drinking water of rats for lifetime exposure. Reduced lifespan was observed in both sexes and altered blood biochemical characters in males. The only concentration tested was of 5 ppm antimony. RfDo values for antimony of 24.5/ig dayfor antimony potassium tartrate of 65.5 fig day and for antimony tri-, tetra- and pentoxides of 29.3, 30.9 and 32.5 /igday" respectively, were calculated. It should be noted that orally administered antimony has been inadequately tested for carcinogenicity. 

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