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ISO certificate
English Name: antimonous sulfide, antimony trisulfide
Molecular Formular: Sb2S3
Molecular Weight: 339.68
Physicochemical Properties: Pure antimony trisulfide shall be the yellow-red amorphous powder, the relative density is 4.12 with the melting poing of 550°C,be insoluble in the water and acetic acid,whereas be soluble in the solution of concentrated hydrochloric acid,ammonium sulfide and potassium sulfide.The antimony sulfide using in fireworks and firecracker industry is generally processed with the stibnite powder,which is the black or grey-black powder with the metal shine,insoluble in the water and with strong deoxidation.
Purpose: Antimonous sulfide mainly used in manufacturing the match and firecracker,various antimony trioxide and colored glass,or as thesulfurizing agent in the rubber industry or for in the military industry.
Manufacture method: Processing with the nature antimony mine.After filtrating,the nature stibnite shall be smashed for processing to be the finishing product of antimony sulfide.
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Target:GB 5236-85
Specification | Chemical constituent% | ||||
Total antimony | Combined sulfur | Impurity≤ | |||
Aqua-regia insolute | Free sulfur | AS2S3 | |||
0# | 71-72.5 | 25.5-28 | 0.2 | 0.05 | 0.2 |
1# | 70-73 | 25-28.3 | 0.3 | 0.07 | 0.3 |
2# | 69-73 | 25-28.3 | 0.5 | 0.10 | 0.3 |
