ANTIMONY PENTASULFIDE
Synonym(s):Antimony pentasulfide
- CAS NO.:1315-04-4
- Empirical Formula: H2SSb
- Molecular Weight: 155.84
- MDL number: MFCD00016321
- EINECS: 215-255-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-09-04 23:37:13
What is ANTIMONY PENTASULFIDE?
Chemical properties
Antimony pentasulfide is an orange to dark red powder. It is doubtful whether stoichiometric Sb2S5 exists, because the preparations contain free sulfur and have variable composition. Antimony pentasulfide is insoluble in water but soluble in alkalies and alkali-metal carbonates.
Physical properties
Orange-yellow or reddish amorphous powder; density 4.12 g/cm3; decomposes at 75°C; insoluble in water and alcohol; soluble in hydrochloric acid, caustic alkalies and ammonium hydrosulfide.
The Uses of ANTIMONY PENTASULFIDE
As pigment; vulcanizing and coloring rubber; manufacture of matches and fireworks.
Preparation
The compound is made commercially by converting antimony trisulfide to tetrathioantimonate by boiling with sulfur in caustic soda solution:
4 Sb2S3 + 8 S +18 NaOH → 5 Na3SbS4 + 3 NaSbO3 + 9 H2O
The sparingly soluble sodium antimonate is filtered out of the solution. The yellow-orange antimony pentasulfide precipitates out on treatment with hydrochloric acid.
2 Na3SbS4 + 6 HCl → Sb2S5 + 6 NaCl + 3 H2S
It may also be prepared by the reaction of antimony pentachloride in HCl with hydrogen sulfide and removing any free sulfur by extraction with carbon disulfide:
2 SbCl5 + 5 H2S → Sb2S5 + 10 HCl.
Definition
ChEBI: Antimony pentasulfide is a sulfide and a p-block molecular entity.
Hazard
Flammable, dangerous fire risk near oxi- dizing materials.
Safety Profile
Moderately toxic by intraperitoneal route. See also ANTIMONY COMPOUNDS and SULFIDES. Flammable when exposed to heat or by chemical reaction with powerful oxidtzers. Use water to fight fire. Moderately explosive when shocked or by spontaneous chemical reaction in contact with powerful oxidtzers. When heated to decomposition or on contact with acid or acid fumes it emits highly toxic fumes of oxides of sulfur and antimony. Incompatible with water or steam to produce toxic and flammable vapors and with oxidizers, e.g., Ag(ClO3)2, HClO3, ClO2, Mg(ClO3)2, TlO,Zn(ClO3)2.
Properties of ANTIMONY PENTASULFIDE
Melting point: | 74-76°C (dec.) |
Density | 4,12 g/cm3 |
solubility | insoluble in H2O; soluble in acid solutions, alkaline solutions |
form | Powder |
color | Orange |
Water Solubility | insoluble H2O; soluble HCl to evolve H2S [MER06] |
Merck | 13,703 |
CAS DataBase Reference | 1315-04-4(CAS DataBase Reference) |
EPA Substance Registry System | Antimony sulfide (Sb2S5) (1315-04-4) |
Safety information for ANTIMONY PENTASULFIDE
Signal word | Danger |
Pictogram(s) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 Environment GHS09 |
GHS Hazard Statements |
H228:Flammable solids H411:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P273:Avoid release to the environment. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
Computed Descriptors for ANTIMONY PENTASULFIDE
Abamectin manufacturer
Svaks Biotech India Pvt Ltd
Noble Intermediates Pvt Ltd
Pallav Chemicals And Solvents Pvt Ltd
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