ANTIMONY
Antimony is a chemical element with the symbol Sb and atomic number 51. It belongs to the group of metalloids, which are elements that have properties intermediate between metals and nonmetals.
Antimony is a brittle, silvery-white metalloid. It is not easily oxidized in air and resists corrosion. It has a relatively low melting point compared to other metals. Antimony has several industrial applications. Historically, it was used in alloys, such as pewter and type metal. It’s also used in flame-retardant materials, lead-acid batteries, and semiconductor manufacturing. Antimony compounds are used in the production of flame retardants, paints, ceramics, glass, and plastics. It is used in the production of flame-retardant materials for various industries, including electronics, textiles, and construction. It also finds applications in certain types of batteries, such as those used in vehicles.
Antimony Trioxide
Antimony trioxide or Antimony (III) oxide is the inorganic compound with the formula Sb2O3. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite. Antimony (III) oxide is used as an opacifying agent for glasses, ceramics and enamels. It is also used in some specialty pigments contain antimony. Antimony(III) oxide is a useful catalyst in the production of polyethylene terephthalate (PET plastic) and the vulcanization of rubber.
| Molecular Formula | Sb2O3 |
| Appearance | White Powder |
| Assay | 99.5% |
| pH | 2 to 12 |
| Odor | Odorless |
| Density | 5.2 g/cm3, α-form; 67 g/cm3 β-form |
| Melting Point | 656C |
| Solubility | Soluble in acid |
Antimony Trichoride
Antimony trichloride or Trichlorostibine or Antimony chloride is the chemical compound with the formula SbCl3. Antimony Trichloride is readily hydrolyzed and samples of SbCl3 must be protected from moisture. With a limited amount of water it forms antimony oxy-chloride releasing hydrogen chloride. SbCl3 is a reagent for detecting vitamin A and related carotenoids. Antimony trichloride has also been used as an adulterant to enhance the louche effect in absinthe. It has been used in the past to dissolve and remove horn stubs from calves without having to cut them off. It is also used as a catalyst for polymerization, hydro-cracking, and chlorination reactions; as a mordant; and in the production of other antimony salts.
| Molecular Formula | SbCl3 |
| Appearance | White Crystals |
| Assay | 99% |
| pH | 7 |
| Odor | Sharp, pungent |
| Relative Density | 3.14 |
| Storage Temp | 2 C to 8C |
| Melting Point | 73.4C |
| Solubility | Soluble in water, alcohol, CH2 Cl2, phenyls, ether, dioxane, CS2, CCl4, CHCl3, ether, cyclohexane |
Antimony Trisulfide
Antimony trisulfide, also known as Antimony (III) sulfide, is a chemical compound with formula is Sb2S3. Antimony trisulfide is a gray-green solid. It is a reducing agent. Antimony trisulfide is used in cosmetics, in this area it is called kohl. It is used in pyrotechnics to make a glitter effect. It is also used in the heads of safety matches. It was to be used in flash powder before electronic flashes were used. Antimony trisulfide also is found in nature as the crystalline mineral stibnite and the amorphous red mineral met stibnite.
| Molecular Formula | Sb2S3 |
| Appearance | Black Fine Powder |
| Assay | 98% |
| pH | 5.5 to 7.5 |
| Odor | Sharp, pungent |
| Relative Density | 4.6 |
| Storage Temp | 2 C to 8C |
| Melting Point | 550C |
| Total Sulfur | 28% |
| Acidity | 0.01% maximum |
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