| Company Name: |
Sigma-Aldrich |
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021-61415566 800-8193336 |
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orderCN@merckgroup.com |
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| | Arsenic pentasulphide Basic information |
| | Arsenic pentasulphide Chemical Properties |
| Melting point | >300 °C (lit.) | | solubility | insoluble in H2O; soluble in alkaline solutions | | form | brown-yellow amorphous solid | | color | brown-yellow amorphous
solid | | Water Solubility | g/L solution H2O: 0.00136 (0°C) [KRU93] | | Merck | 13,807 | | InChI | 1S/As2S5/c3-1(4)7-2(5)6 | | InChIKey | AYRZLUSHOXJGKY-UHFFFAOYSA-N | | SMILES | S=[As](=S)S[As](=S)=S | | CAS DataBase Reference | 1303-34-0 | | EPA Substance Registry System | Arsenic pentasulfide (1303-34-0) |
| Hazard Codes | T,N | | Risk Statements | 23/25-50/53 | | Safety Statements | 20/21-28-45-60-61 | | RIDADR | UN 1557 6.1/PG 2 | | WGK Germany | 3 | | HazardClass | 6.1(b) | | PackingGroup | III | | Storage Class | 6.1B - Non-combustible acute toxic Cat. 1 and 2
very toxic hazardous materials | | Hazard Classifications | Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1 |
| | Arsenic pentasulphide Usage And Synthesis |
| Chemical Properties | ARSENIC PENTASULPHIDE is 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] | | 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. | | Uses | ARSENIC PENTASULPHIDE is 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. | | Uses | - Used for preparation of glasses with small gold additions posessing photoluminescent and conductive properties
- Reactant for preparation of silver thioarsenate complex ethylenediammonium salt
| | Production Methods | Arsenic(V) sulfide, As4S10, is produced by fusing stoichiometric quantities of As and S powder or by precipitation from highly acidic arsenate(V) solution with H2S. | | 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. | | reaction suitability | core: arsenic
reagent type: catalyst |
| | Arsenic pentasulphide Preparation Products And Raw materials |
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