Molecular Formula | NiCO3.2Ni(OH)2 |
Molar Mass | 304.12 |
Boling Point | 333.6℃ at 760 mmHg |
Appearance | Green crystalline or crystalline powder |
Storage Condition | Room Temprature |
Sensitive | Easily absorbing moisture |
MDL | MFCD00150262 |
Physical and Chemical Properties | Light green powder. Relative density 2.6. Insoluble in water, soluble in ammonia and dilute acid, and decomposed into nickel oxide and carbon dioxide when heated above 300 ℃. |
Use | Basic nickel carbonate is mainly used in three aspects: (1) intermediates in inorganic products, such as other nickel salts: nickel acetate, nickel sulfamate, catalysts and intermediates prepared by other organic nickel salts; (2) Preparation of nickel oxide by calcination or reduction to nickel powder for magnetic materials and cemented carbides; (3) Electroplating materials, ceramic pigments, etc. |
Risk Codes | R22 - Harmful if swallowed R40 - Limited evidence of a carcinogenic effect R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R68 - Possible risk of irreversible effects R48/23 - R42/43 - May cause sensitization by inhalation and skin contact. R38 - Irritating to the skin R20/22 - Harmful by inhalation and if swallowed. R61 - May cause harm to the unborn child R49 - May cause cancer by inhalation |
Safety Description | S22 - Do not breathe dust. S36/37 - Wear suitable protective clothing and gloves. 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. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S53 - Avoid exposure - obtain special instructions before use. |
UN IDs | UN 3077 9/PG 3 |
The sodium carbonate method is based on the ratio of sulfuric acid to nitric acid of 3:1. Nitric acid is added in sulfuric acid to prepare mixed acid, and then metallic nickel is added to react with nitric acid to generate nickel nitrate, then react with sulfuric acid to generate nickel sulfate solution, and then add soda ash to react to generate basic nickel carbonate. After filtration, concentration, cooling crystallization, and centrifugal separation, a finished basic nickel carbonate product is obtained. Its
3Ni 8HNO3→3Ni(NO3)2 4H2O 2NO↑
Ni(NO3)2 H2SO4→NiSO4 H2O 2NO2↑ 1/2O2↑
3Ni 3H2SO4 2HNO3→3NiSO4 4H2O 2NO↑
3NiSO4 3Na2CO3 H2O→NiCO3·2Ni(OH)2·4H2O 3Na2SO4 2CO2