Basic information Uses Antimony oxides Flame retardant Preparation of antimony trioxide from antimony potassium tartrate Commercial antimony(III) oxide Production method Recovery of Antimony(III) Oxide Category Toxicity grading Acute toxicity Flammability and hazardous characteristics Storage characteristics Extinguishing agent Professional standards Safety Related Supplier
Diantimony trioxide Structure

Diantimony trioxide

Chemical Properties

Melting point 655 °C (lit.)
Boiling point 1550 °C (lit.)
Density  5.20
vapor pressure  13.3 hPa (660 °C)
Flash point 1550°C subl.
storage temp.  Store below +30°C.
solubility  2.70mg/l
form  powder
Specific Gravity 5.67
color  White
Odor wh. cubic or orthorhombic cryst., odorless
Water Solubility  Slightly soluble. <0.1 g/100 mL at 20 ºC
Merck  14,711
Exposure limits ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
Stability Stable.
InChIKey MUBFITUCTVFSOJ-UHFFFAOYSA-L
CAS DataBase Reference 1309-64-4(CAS DataBase Reference)
NIST Chemistry Reference Antimony trioxide(1309-64-4)
IARC 2B (Vol. 47) 1989
EPA Substance Registry System Antimony trioxide (1309-64-4)

Safety Information

Hazard Codes  Xn,Xi,T
Risk Statements  40-61
Safety Statements  22-36/37-45-53
RIDADR  1549
WGK Germany  2
RTECS  CC5650000
Hazard Note  Irritant
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  28258000
Hazardous Substances Data 1309-64-4(Hazardous Substances Data)
Toxicity LD50 orally in rats: >20 g/kg (Smyth)

MSDS

Usage And Synthesis

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