Antimony Tri Sulphide

Antimony Tri Sulphide Specifications:

• CAS Number :1345-04-6
• Molecular Formula : Sb2S3
• Appearance : Black lumps or crystalline powder free from visible impurities and foreign matter.
• Volatile matter (at 100 to 1050C for 2 hours) percent  :   Max 0.03
• pH of aqueous extract : 5.5to 7.5

Sulphur

• (a) Total percent by mass             Min22.0
• (b) Free percent by mass             Max0.2

Antimony

• (a) Total percent by mass             Min70.0
• (b) Free percent by mass             Max4.0

Antimony Oxides calculated as Sb2O3 percent by mass  Max 20.0

Other metals calculated as Sulphide by mass       Max 1.5

Matter insoluble in Aqua Regia Percent by mass                Max 0.25