Diantimony trioxide (Diantimony trioxide)

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Diantimony trioxide

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ap50
antox
a1530
at3
atoxf
Antimony(III) oxide
Antimony trioxide
patoxh
atoxs
patoxl
a1582
patoxc

+Expand -Stow

1309-64-4

O3SB2

291.5182

2825800000

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Nature Description

C.I. White paint 11(1309-64-4) characters:
??? White or gray orthorhombic crystal system or isometric system crystalline powder. It turns yellow after heating, and turns white or gray again after cooling. Density 5.2g/cm3, melting point ℃, boiling point ℃ (sublimation), below ℃ is stable orthorhombic crystal system, above ℃ is stable isometric system. Soluble in hydrochloric acid, sodium hydroxide, sodium sulfide, tartaric acid, acetic acid, concentrated sulfuric acid, concentrated nitric acid, insoluble in water, alcohol and dilute sulfuric acid. It is amphoteric oxide. It is reduced to metal antimony by solid carbon, carbon monoxide, hydrogen and other gases at low temperature.

5.20

1456oC

656oC(SUBL.)

略溶于水.<0.1G/100MLAT20oC

Product Applications

It is used as white pigment, white glass, enamel, medicine, bonding cement, filler, mordant and fire retardant coating, etc. As flame retardant, it is widely used in plastics, rubber, textile, chemical fiber, pigment, paint, electronics and other industries are also used as catalysts and raw materials for chemical industry; Used as high purity..

Production method

C.I. White paint 11(1309-64-4) preparation method: the preparation method of antimony White is divided into dry method and wet method. Dry method includes antimony metal method and stibnite method; Wet method includes acid leaching method and antimony salt decomposition method. 1. Dry method (1) metal antimony method. Antimony metal is heated to 1200℃ in graphite furnace and oxidized to antimony white through air. (2) stibnite method. After mixing high-grade stibnite with iron ore and limestone, it is then bubbled into air and pulverized coal and converted, reduced and oxidized. 2. Wet (1) acid leaching. The antimony sulfide mining hydrochloric acid, chlorine leaching, and then often warm hydrolysis, ammonia neutralization. (2) antimony salt solution. The reaction of metal antimony and chlorine gas generates antimony trichloride, and through distillation, hydrolysis, ammonolysis, washing, centrifugal separation and drying, the finished antimony trioxide product is prepared.