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| | Cadmium sulfate octahydrate Basic information |
| | Cadmium sulfate octahydrate Chemical Properties |
| Melting point | 41 °C | | density | 3.08 | | refractive index | 1.565 | | storage temp. | Store at +5°C to +30°C. | | solubility | 1130g/l | | form | Solid | | color | White | | Specific Gravity | 3.08 | | Odor | Odorless | | PH | 3.0-6.0 (50g/l, H2O, 20℃) | | Water Solubility | Highly soluble in water. Partially soluble in methanol and ethyl acetate. Insoluble in ethanol. | | Merck | 14,1627 | | Boiling point | >80°C(decomposition) | | Exposure limits | ACGIH: TWA 0.01 mg/m3; TWA 0.002 mg/m3
NIOSH: IDLH 9 mg/m3 | | Stability: | Stable. | | CAS DataBase Reference | 7790-84-3(CAS DataBase Reference) |
| Hazard Codes | T+,N | | Risk Statements | 45-46-60-61-25-26-48/23/25-50/53 | | Safety Statements | 53-45-60-61 | | RIDADR | UN 2570 6.1/PG 3 | | WGK Germany | 3 | | RTECS | EV2850000 | | TSCA | Yes | | HS Code | 2833 29 20 | | HazardClass | 6.1 | | PackingGroup | III | | Toxicity | LD50 orally in Rabbit: 280 mg/kg |
| | Cadmium sulfate octahydrate Usage And Synthesis |
| Chemical Properties | White crystal or crystalline powder | | Chemical Properties | Cadmium sulfate is a white to colorless, odorless, crystalline substance. | | Uses | Cadmium sulfate mainly used in electroplating of cadmium, which is used in electronic circuits. It is used as a precursor for cadmium based pigments such as cadmium sulfide and pharmaceutical intermediates. It is used in the standard weston cell. | | Uses | Cadmium sulfate octahydrate is used in preparation of cadmium standards.
| | Uses | In electrodeposition of Cd, Cu, and Ni; in phosphors, manufacture of standard cadmium elements; Cadmium sulfate octahydrate can be used as catalyst in the Marsh test for As, determining H2S and detecting fumaric acid; as nematocide, fungicide, bactericide; lubricant; electrolyte in Weston cell.
| | Definition | ChEBI: A hydrate composed of cadmium sulfate and water in a 3:8 ratio. | | Safety Profile | Confirmed human
carcinogen with experimental tumorigenic
and neoplastigenic data. Experimental
teratogenic and reproductive effects.
Mutation data reported. When heated to
decomposition it emits very toxic fumes of
Cd and SO,. See also CADMIUM
SULFATE, CADMIUM COMPOUNDS,
and SULFATES. | | Potential Exposure | It is used in pigments, electroplating;
as a fungicide; and in synthetic and analytical chemistry.
Also used in fluorescent screens; as an electrolyte.
Incompatibilities: Acts as a weak inorganic acid; neutralizes bases. Incompatible with oxidizers (chlorates, nitrates,
peroxides, permanganates, perchlorates, chlorine, bromine,
fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, epoxides, sulfur, selenium, tellurium, zinc | | Shipping | UN2570 Cadmium compounds, Hazard Class:
6.1; Labels: 6.1-Poisonous materials, Technical Name
Required. | | Purification Methods | The sulfate crystallises from distilled water as a hydrate by partial evaporation in a desiccator. It gives the monohydrate on heating at 80o. It is insoluble in EtOH, Me2CO or EtOAc. It forms a white precipitate of Cd(OH)2 with aqueous NH3 which dissolves in excess of NH3 to form soluble [Cd(NH3)4]SO4. [Gmelin’s Cadmium (8th edn) 33 p 121 1925, Suppl pp 609-610 1959.] |
| | Cadmium sulfate octahydrate Preparation Products And Raw materials |
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