15593-75-6

Basic information

• Product Name: trisodium antimonate(3-)
• Synonyms: trisodium antimonate(3-);trisodium antimonate(V)
• CAS NO: 15593-75-6
• Molecular Formula: Na.1/3O4Sb
• Molecular Weight: 84.29
• EINECS: 239-670-6
• Mol File: 15593-75-6.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: trisodium antimonate(3-)(CAS DataBase Reference)
• NIST Chemistry Reference: trisodium antimonate(3-)(15593-75-6)
• EPA Substance Registry System: trisodium antimonate(3-)(15593-75-6)

Safety Data

• RIDADR: 1549
• HazardClass: 6.1(a)
• PackingGroup: III
• Hazardous Substances Data: 15593-75-6(Hazardous Substances Data)

Usage

chemical properties

Sodium antimonate [15593-75-6], Na2OSb2O5.1/2H2O, is a free-flowing white powder made by the oxidation of antimony trioxide in a basic medium.The pigmenting strength of sodium antimonate is less than antimony trioxide. It is recommended for formulations in which deep tone colours are required. Because it contains 62 wt% antimony, somewhat higher concentrations are needed to make it as effective as antimony trioxide which has 83 wt % antimony. Property value physical form white powder antimony content 61.7 wt% bulk density. kg / m3 39.4-46.4 specific gravity 4.8 fineness 99.75% through 74 um (200 mesh) sieve A few of its properties are shown in Table 1.

Property

value

physical form

white powder

antimony content

61.7 wt%

bulk density. kg / m3

39.4-46.4

specific gravity

4.8

fineness

99.75% through 74 um (200 mesh) sieve

Uses

Sodium antimonate is antimony synergist of commercial importance, has an antimony content of 61–63 wt % and a bulk density of 39.4–46.4 kg/m3. It is made by oxidizing antimony trioxide using sodium nitrate and caustic. It is a white powder and has a pH of around 9–11 when dissolved in water. Sodium antimonate contains less antimony than either antimony trioxide or pentoxide and is thus less effective. However, its unique pH and low refractive index makes the antimonate the most desirable synergist for polymers that hydrolyze when processed with acidic additives or in polymers for which deep color tones are specified.

InChI:InChI=1/3Na.4O.Sb/q3*+3;;;;;-3/r3Na.O4Sb/c;;;1-5(2,3)4/q3*+3;-3