CADMIUMSULFATE,HYDRATE,TECHNICAL
Cadmium sulfate octahydrate
CAS: 7790-84-3
Molecular Formula: 3Cd.3O4S.8H2O
CADMIUMSULFATE,HYDRATE,TECHNICAL - Names and Identifiers
CADMIUMSULFATE,HYDRATE,TECHNICAL - Physico-chemical Properties
| Molecular Formula | 3Cd.3O4S.8H2O |
| Molar Mass | 769.53 |
| Density | 3.08 |
| Melting Point | 41 °C |
| Boling Point | >80°C(decomposition) |
| Water Solubility | Highly soluble in water. Partially soluble in methanol and ethyl acetate. Insoluble in ethanol. |
| Solubility | 1130g/l |
| Appearance | Solid |
| Specific Gravity | 3.08 |
| Color | White |
| Odor | Odorless |
| Exposure Limit | ACGIH: TWA 0.01 mg/m3; TWA 0.002 mg/m3NIOSH: IDLH 9 mg/m3 |
| Merck | 14,1627 |
| PH | 3.0-6.0 (50g/l, H2O, 20℃) |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable. |
| Refractive Index | 1.565 |
| Physical and Chemical Properties | Colorless monoclinic crystal, odorless. Soluble in water, insoluble in ethanol, acetic acid and ether. |
CADMIUMSULFATE,HYDRATE,TECHNICAL - Risk and Safety
| Risk Codes | R45 - May cause cancer R46 - May cause heritable genetic damage R60 - May impair fertility R61 - May cause harm to the unborn child R25 - Toxic if swallowed R26 - Very Toxic by inhalation R48/23/25 - R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2570 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | EV2850000 |
| TSCA | Yes |
| HS Code | 2833 29 20 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 280 mg/kg |
CADMIUMSULFATE,HYDRATE,TECHNICAL - References
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 75.4g/0 ℃;76g/10 ℃;76.6g/20 ℃;78.5g/40 ℃; 81.8g/60 ℃;66.7g/80 ℃;63.1g/90 ℃;60.8g/100 ℃ |
| Use | used in the manufacture of cadmium batteries, metal cadmium, cadmium fertilizer, also used in electronics, pharmaceutical and Other Industries used as reagents for the determination of thiohydrogen and fumaric acid |
| production method | 1. The metal cadmium particles (in excess) were added to the aqueous sulfuric acid solution, and nitric acid having a density of 1.40 was slowly added as an oxidizing agent, followed by heating to 70 ° C. For reaction: when the metal cadmium was no longer dissolved. Heating was stopped (at which point the solution was neutral to Congo red). Appropriate amount of cadmium carbonate was added according to Fe 3 ion content, heated for 5-10min, filtered, the filtrate was acidified by sulfuric acid, concentrated to dryness by evaporation and stirring, and the obtained crystals were burned to remove nitric acid. After cooling with stirring, 23ml of water and 4ml of ethanol were added to each 100g of the product, the mixture was uniformly stirred, filtered, crystallized, washed with ethanol, and dried at 30-50 °c. |
| category | toxic substances |
| flammability hazard characteristics | thermal decomposition of toxic sulfur oxides, cadmium smoke |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from food raw materials |
| fire extinguishing agent | water, carbon dioxide, foam. Dry powder |
| Occupational Standard | TWA 0.05 mg (cadmium)/m3 |
Last Update：2024-04-10 22:29:15
