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| | Diantimony pentoxide Basic information |
| | Diantimony pentoxide Chemical Properties |
| Melting point | 380 °C (dec.)(lit.) | | density | 3.78 g/mL at 25 °C(lit.) | | form | Powder | | color | Yellow | | Specific Gravity | 3.8 | | Water Solubility | Slightly soluble in water. Slowly dissolves in warm HCl and warm KOH. Insoluble in HNO<sub>3</sub> | | Merck | 14,698 | | crystal system | Monoclinic | | Space group | C2/c | | Lattice constant | | a/nm | b/nm | c/nm | α/o | β/o | γ/o | V/nm3 | | 1.2646 | 0.4782 | 0.54247 | 90 | 103.91 | 90 | 0.3184 |
| | Exposure limits | ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3 | | Stability: | Stable. Incompatible with acids, reducing agents. | | InChI | InChI=1S/5O.2Sb | | InChIKey | LJCFOYOSGPHIOO-UHFFFAOYSA-N | | SMILES | [Sb](=O)(=O)O[Sb](=O)=O | | CAS DataBase Reference | 1314-60-9(CAS DataBase Reference) | | EPA Substance Registry System | Antimony oxide (Sb2O5) (1314-60-9) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36 | | RIDADR | 1549 | | WGK Germany | 3 | | RTECS | CC6300000 | | TSCA | TSCA listed | | HazardClass | 6.1 | | PackingGroup | III | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 | | Toxicity | LD50 i.p. in rats: 400.0 mg Sb/100 g (Bradley, Fredrick) |
| | Diantimony pentoxide Usage And Synthesis |
| Chemical Properties | yellow powder | | Physical properties | Yellow powdery solid; density 3.80 g/ cm3; very slightly soluble in water; hydrated pentoxide is insoluble in nitric acid; dissolves in an aqueous solution of caustic potash. | | Uses | It is used as flame retardants in acrylonitrile-butadiene-styrene (ABS) polymer, plastics, rubbers, paper and textiles. It finds use as a flocculant in the production of titanium dioxide. It also finds use in ion-exchange resin. It is also employed as catalyst in certain polymerization and oxidation reactions. | | Uses | Fire retardant in clothing. | | Uses | Antimony pentoxide (Sb2O3) is used as a flame retardant for textile materials and as a source
to prepare other antimony compounds. | | Definition | A yellow solid. It is usually
formed by the action of concentrated nitric
acid on antimony or by the hydrolysis of
antimony(V) chloride. Although an acidic
oxide, it is only slightly soluble in water. | | Preparation | The hydrated oxide is prepared by hydrolysis of antimony pentachloride; or by acidification of potassium hexahydroxoantimonate(V), KSb(OH)6 [12208- 13-8]. The product, filtered and air dried at ambient temperature has approximate composition Sb2O5 3.5H2O. It may be also prepared by oxidation of antimony trioxide with nitric acid. | | Flammability and Explosibility | Non flammable | | reaction suitability | core: antimony
reagent type: catalyst | | Safety Profile | Moderately toxic by
intraperitoneal route. See also ANTIMONY
COMPOUNDS. |
| | Diantimony pentoxide Preparation Products And Raw materials |
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