Antimony sulfide (Sb2S3)
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Antimony sulfide (Sb2S3)
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CAS No:
1345-04-6
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Formula:
S3Sb2
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Chemical Name:
Antimony sulfide (Sb2S3)
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Synonyms:
Antimony sulfide (Sb2S3);C.I. 77060;Antimonous sulfide;Antimony Orange;Antimony Vermilion;C.I. Pigment Red 107;Crimson Antimony Sulphide;Needle antimony;Antimony trisulfide;Diantimony trisulfide;Antimony sesquisulfide;Antimony(3+) sulfide;Antimony sulfide (Sb4S6);Antimony(III) sulfide;Frixsta;28767-59-1;64553-20-4;73912-61-5;2379331-66-3
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CAS No:
Characteristics
89.48000
1.94460
Dark gray to black powder
4.562 g/cm3
550 °C
1013 °C
4.303
soluble in concentrated acids. Insoluble in water.
12600mmHg at 25°C
Intraperitoneal injection-rat LD50: 1390 mg/kg; Abdominal cavity-mouse LD50: 209 mg/kg
In case of dilute hydrochloric acid, it emits toxic hydrogen sulfide gas; in case of hot sulfuric acid, it emits toxic sulfur oxide gas; flammable; burning produces toxic sulfur oxides and antimony fumes
Safety Information
III
6.1
UN 1549 6.1/PG 3
2
36/37/38-20/21/22
36/37/39-26
CC9450000
Xn
Treasury is ventilated, low temperature and dry; stored and transported separately from acids and food
Stable. Incompatible with acids (reacting to form poisonous hydrogen sulfide), moisture, water.
P273
H302 + H332-H411
Antimony sulfide (Sb2S3) Use and Manufacturing
There are three preparation methods: natural queen queen processing method, antimony white conversion method and direct legalization. Natural mineral processing method. The natural antimony antimony ore is processed through screening and crushing to produce antimony sulfide finished products. Antimony white conversion method. Reaction equation: Sb2O3+4Na2S+Ca(OH)2+3H2O→Sb2S3+8NaOH+CaS Operation method: Mix Sb2O3 1.80kg, Ca(OH)2 0.6kg, H2O 6kg, heat at 80℃ for 1h. Dissolve 2.41 kg of 60% Na2S in 3 L of water to prepare a Na2S solution. Under stirring, at 80° C., add this Na2S solution to the above mixture within 30 min, and keep stirring for 30 min. It was then acidified with 30% HCl to pH 0.4 within 3h. Raise the temperature to 95°C, stir for another 3h, cool, filter, wash, and dry to obtain Sb2S3 pigment. Direct and legal. Reaction equation: 3S+2Sb→Sb2S3 Operation method: After melting metal antimony at high temperature, sulfur vapor is introduced into it, and it is directly combined to produce antimony trisulfide. The amount of sulfur is 103% to 115% of the stoichiometric amount, the reaction is stirred for 0.3 to 1 hour, and the reaction temperature is maintained at 650 to 850°C.
In pyrotechnics, Bengal fires; manufacture of ruby glass, matches, explosives; as a pigment in paints.
Drug Function and Efficacy
Used in homeopathy for gastrointestinal complaints, nausea, vomiting, and skin eruptions
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