Name | Nickel Hydroxide |
Synonyms | nickel dihydrate Nickel Hydroxide nickel trihydrate Nickelous hydroxide Nickel(II)Hydroxide NICKEL(II) HYDROXIDE nickel(2+) dihydroxide |
CAS | 12054-48-7 11113-74-9 |
EINECS | 234-348-1 |
InChI | InChI=1/Ni.3H2O/h;3*1H2 |
InChIKey | BFDHFSHZJLFAMC-UHFFFAOYSA-L |
Molecular Formula | Ni(OH)2 |
Molar Mass | 92.7047 |
Density | 4.1g/mL(lit.) |
Melting Point | 230 |
Boling Point | 100°C at 760 mmHg |
Water Solubility | Insoluble in water. Soluble in dilute acid. |
Vapor Presure | 24.5mmHg at 25°C |
Appearance | Form Powder, color Green |
PH | 8.37(1 mM solution);8.37(10 mM solution);8.37(100 mM solution) |
Stability | Stable. Incompatible with strong acids, water, moisture. |
Physical and Chemical Properties | Chemical properties light green crystalline powder with 4.15 relative density. Melting point 230 ℃ (decomposition). Soluble in acids, insoluble in water and alkali, soluble in aqueous solutions of ammonia and ammonium salts to form complexes, which are decomposed when heated. |
Use | For alkaline storage battery, nickel plating, etc |
Risk Codes | R20/22 - Harmful by inhalation and 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 R61 - May cause harm to the unborn child R49 - May cause cancer by inhalation |
Safety Description | S22 - Do not breathe dust. S36 - Wear suitable protective clothing. 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 |
WGK Germany | 3 |
RTECS | QR7040000 |
TSCA | Yes |
HS Code | 28254000 |
Hazard Class | 9 |
Packing Group | III |
Raw Materials | Nickelous sulfate Nickelous sulfate Sodium hydroxide Nickelous Nitrate |
Downstream Products | Nickel sulfamate |
apple green powder, hexagonal system. Insoluble in alkali, soluble in acid and ammonium hydroxide. It cannot be oxidized by an aqueous solution of hydrogen peroxide. At a certain temperature, it can be oxidized by bromine water, chlorine water, sodium hypochlorite and the like to generate black nickel oxyhydroxide NiO(OH). Non-combustible, with strong irritation.
rat oral LDso:1500mg.kg-1. It has a strong stimulating effect on eyes, skin, mucous membranes and upper respiratory tract. After contact, can cause allergic dermatitis and eczema. Nickel compounds are carcinogens. Store in a cool, ventilated warehouse. Keep away from fire and heat source. Protection from direct sunlight. The packaging is sealed. It should be stored separately from oxidants and acids, and mixed storage should not be avoided. It is harmful to the environment and can cause pollution to water bodies.
application
Nickel hydroxide can be obtained by adding potassium hydroxide to nickel nitrate or nickel hexaammine (Ⅱ) nitrate solution and used as an oxidation catalyst.
Toxicity
Nickel can enter cells, causing damage to enzymes and metabolic processes in cells, which may cause carcinogenic effects due to the formation of certain carcinogens. Contact with nickel compounds can cause nickel eczema and nickel scabies.
during production, operators should wear gas masks and gas masks to prevent direct skin contact. Try to implement mechanized operation to avoid dust. Staff should check their bodies regularly.
Production method
The nickel salt method reacts with nickel salt solution such as nickel sulfate solution and sodium hydroxide solution, and then crystallizes and separates to obtain the finished nickel hydroxide. Its
NiSO4 2NaOH→Ni(OH)2 Na2SO4
Merck | 13,6534 |
Ksp precipitation equilibrium constant | pKsp: 15.26 |
EPA chemical information | Nickel hydroxide (Ni(OH)2) (12054-48-7) |