| Identification | More | [Name]
NICKEL(II) HYDROXIDE | [CAS]
12054-48-7 | [Synonyms]
NICKEL(+2)HYDROXIDE
NICKEL HYDROXIDE
NICKEL(II) HYDROXIDE
Ni(OH)2
Nickel hydroxide (Ni(OH)2)
Nickel hydroxide(ous)
nickel(ii)
nickeldihydroxide
nickelhydroxide(ni(oh)2)
Nickelous hydroxide
Nickeloushydroxide
nickl (Ⅱ) hydroxide
NICKEL(II) HYDROXIDE TECHNICAL
Nickel(II) hydroxide, for analysis
nickel hydroxide (II)
Nickeldihydroxid
Nickel(II) hydroxide, Ni 61%
Nickel(II) hydroxide: (Nickelous hydroxide)
Niekelous hydroxide
Dihydroxynickel(II) | [EINECS(EC#)]
235-008-5 | [Molecular Formula]
H2NiO2 | [MDL Number]
MFCD00011140 | [Molecular Weight]
92.71 | [MOL File]
12054-48-7.mol |
| Chemical Properties | Back Directory | [Appearance]
Nickel hydroxide is a light, apple-green powder. | [Melting point ]
230°C (dec.) | [density ]
4.1g/mL(lit.) | [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. | [Water Solubility ]
Insoluble in water. Soluble in dilute acid. | [Merck ]
13,6534 | [Solubility Product Constant (Ksp)]
pKsp: 15.26 | [Exposure limits]
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3 | [InChI]
InChI=1S/Ni.2H2O/h;2*1H2/q+2;;/p-2 | [InChIKey]
BFDHFSHZJLFAMC-UHFFFAOYSA-L | [SMILES]
[Ni](O)O | [Uses]
Nickel salts. | [CAS DataBase Reference]
12054-48-7(CAS DataBase Reference) | [EPA Substance Registry System]
Nickel hydroxide (Ni(OH)2) (12054-48-7) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N | [Risk Statements ]
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 . | [Safety Statements ]
S22:Do not breathe dust .
S36:Wear suitable protective clothing .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
3
| [RTECS ]
QR7040000
| [TSCA ]
Yes | [HazardClass ]
9 | [PackingGroup ]
III | [HS Code ]
28254000 | [Safety Profile]
Confirmed carcinogen
with experimental carcinogenic and
tumorigenic data. Poison by subcutaneous
route. See also NICKEL COMPOUNDS. | [Hazardous Substances Data]
12054-48-7(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Hazard]
Confirmed carcinogen. | [Potential Exposure]
It may be found in the workplace as a
dust, liquid, or acid solution. This compound may be used
in nickel plating operations. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including
resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical
attention. Give large quantities of water and do not
induce vomiting. Medical observation is recommended for
24 48 hours after breathing overexposure, as pulmonary
edema may be delayed. As first aid for pulmonary edema,
a doctor or authorized paramedic may consider administering
a drug or other inhalation therapy.
| [Shipping]
UN3077 Environmentally hazardous substances,
solid, n.o.s., Hazard Class: 9; Labels: 9-Miscellaneous hazardous
material, Technical Name Required. | [Incompatibilities]
Incompatible with strong acids. Aqueous
solution may be acidic. | [Chemical Properties]
Black powder. | [Chemical Properties]
Nickel hydroxide is a light, apple-green powder. | [Waste Disposal]
Recover and recycle where
possible or dispose of in a chemical waste landfill. | [Production Methods]
Nickel hydroxide is obtained either by treating nickel sulfate
solution with sodium hydroxide or by hot alcohol extraction
of the precipitate formed as a result of the reaction of nickel
nitrate with potassium hydroxide. Nickel hydroxide is
used for the manufacture of nickel–cadmium electric
cells, and as an intermediate product during the manufacture
of nickel catalysts. | [Flammability and Explosibility]
Nonflammable |
| Questions And Answer | Back Directory | [Physical Properties]
Green hexagonal crystal; density 4.10 g/cm3; decomposes to NiO on heating at 230°C; insoluble in water; KSP 5.47x10-16; monohydrate is insoluble in water but soluble in dilute acids and ammonia.
| [Preparation]
Nickel hydroxide is prepared by various methods, mostly involving reaction of caustic soda or caustic potash with a soluble nickel salt. Thus, treating nickel sulfate solution with sodium hydroxide forms a voluminous green gel. The gel crystallizes on prolonged storage. Alternatively, the solution on neutralization forms a fine precipitate of nickel hydroxide. Nickel nitrate also is used as starting material to prepare nickel hydroxide. Its aqueous solution, on treatment with sodium or potassium hydroxide, yields a gelatinous precipitate of nickel hydroxide which may be extracted with hot alcohol to form high purity product.
Nickel hydroxide in high purity is prepared by an electrolytic process using metallic nickel as the anode and nickel nitrate solution as the electrolyte. Nickel hydroxide is electrodeposited at an inert cathode.
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