| Identification | Back Directory | [Name]
ARSENIC PENTASULPHIDE | [CAS]
1303-34-0 | [Synonyms]
As2S3
ARSENIC(V) SULFIDE
Arsenicpentasulfide
ARSENIC PENTASULPHIDE
diarsenicpentasulphide
Diarsenic pentasulfide
Arsenic sulfide (as2S5)
ARSENIC(V) SULFIDE, 99.99+% | [Molecular Formula]
As2S5 | [MDL Number]
MFCD00049840 | [MOL File]
1303-34-0.mol | [Molecular Weight]
310.17 |
| Hazard Information | Back Directory | [Chemical Properties]
yellow or orange powder(s); stable in air up to 95°C; can be prepared by fusing As and S or by passing H2S through HCl solution of arsenic acid; used as a paint pigment, in light filters [HAW93] [KIR78] | [Uses]
Used for preparation of glasses with small gold additions posessing photoluminescent and conductive properties 1 Reactant for preparation of silver thioarsenate complex ethylenediammonium salt 2 | [Uses]
In thin sheets as a light filter; in pigments. | [Physical properties]
Yellow-brown glassy amorphous solid; sublimes on heating; decomposes around 500°C; insoluble in cold water (~1.4 mg/L at 0°C); dissolves in alkalies and solutions of alkali metal sulfides, and in nitric acid. | [Preparation]
Arsenic pentasulfide is prepared by precipitation from an acidic solution of orthoarsenic acid, H3AsO4, or arsenic pentachloride, AsCl5 or any other soluble As(V) salt by passing hydrogen sulfide. It may be also prepared by heating a mixture of arsenic and sulfur, extracting the fused mass with ammonia solution and reprecipitating arsenic pentasulfide at low temperature by addition of HCl. |
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