Home Categories Inorganic chemistry Antimony trioxide
A0619212

Antimony trioxide , 99.999%metalsbasis , 1309-64-4

Synonym(s):
Diantimony trioxide;Antimony(III) oxide;JOS;MJD;SCA3

CAS NO.:1309-64-4

Empirical Formula: O3Sb2

Molecular Weight: 291.52

MDL number: MFCD00011214

EINECS: 215-175-0

Pack Size Price Stock Quantity
10G RMB224.80 In Stock
50G RMB1115.20 In Stock
250G RMB3580.00 In Stock
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Update time: 2022-07-08

PRODUCT 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
color  White
Specific Gravity 5.67
Odor wh. cubic or orthorhombic cryst., odorless
Water Solubility  Slightly soluble. <0.1 g/100 mL at 20 ºC
crystal system Cube
Merck  14,711
Space group Fd3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
1.1141.1141.1149090901.3825

Exposure limits ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
Stability: Stable.
InChIKey MUBFITUCTVFSOJ-UHFFFAOYSA-L

Description and Uses

This hard shiny metal is often alloyed to other elements. It is used in various industrial fields, such as those making or using batteries, printing machines, bearing, textiles, and ceramics. It caused positive patch test reactions in two workers in a ceramics industry.

Antimony Trioxide (commonly referred to as antimony oxide), Sb2O3 is used to impart flame retardancy to plastics. Although antimony trioxide is found in nature, it is too impure to be used. Flameretardant grades of antimony oxides are manufactured from either antimony metal or the sulfide ore by oxidation in air at 600–800 °C. The particle size and chemical reactivity is determined by the processing conditions, enabling the production of several different grades. Antimony trioxide is from 99.0–99.9 wt % Sb2O3. The remainder consists of 0.4–0.01 wt % arsenic; 0.4–0.01, lead; 0.1–0.0001, iron; 0.005–0.0001, nickel; and 0.01–0.0001, sulfates. It is insoluble in water and the loss on drying at 110 °C is 0.1 wt % max.
Antimony trioxide has been used as a white pigment since ancient times. The pigmentation from antimony oxide in plastics can be controlled and adjusted by the judicious selection of a Sb2O3 grade having a specific particle size. The product with the smallest particle size and the narrowest particle-size range imparts the whitest color and highest opacity. Translucent plastics can be made by using low tint grades with relatively large particles.

Safety

Symbol(GHS) 
GHS07,GHS08
Signal word  Danger
Hazard statements  H315-H319-H360D
Precautionary statements  P202-P264-P280-P302+P352-P305+P351+P338-P308+P313
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
Toxicity LD50 orally in rats: >20 g/kg (Smyth)

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