ChemicalBook >?? ???? >??(2+) ????? ???????
??(2+) ????? ???????
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- insoluble in H2O; soluble in acid solutions,NH2OH 4
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- green-white
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- Merck
- 14,6514
- Solubility Product Constant (Ksp)
- pKsp: 9.4
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- NIOSH: IDLH 10 mg/m3; TWA 0.015 mg/m3
- CAS ??????
- 6018-94-6(CAS DataBase Reference)
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| ??? ?? | Xn,N,T | ||
|---|---|---|---|
| ?? ???? ?? | 21/22-20/21/22-50/53-48/23-43-49 | ||
| ????? | 24/25-36-9-7-61-60-45-36/37-53 | ||
| ????(UN No.) | UN3288 | ||
| TSCA | Yes | ||
| ?? ?? | 6.1 | ||
| ???? | III |
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light green powder(s) . Nickel(II) Oxalate Dihydrate [6018-94-6], Ni(COO)2·2 H2O, Mr 182.76, precipitates as a green powder when oxalic acid or alkali-metal oxalate solutions are added to nickel(II) salt solutions. When heated in vacuum, it evolves water at 150 ℃ and decomposes completely at 300 ℃, giving finely divided nickel suitable for use in catalysis or in the production of nickel carbonyl.??
Nickel oxalate is used for the production of nickel catalysts and magnetic materials.?? ??
Nickel(II) oxalate precipitates as NiC2O4?2H2O when oxalic acid is added to nickel salt solutions. It is isomorphous with the oxalates of magnesium, zinc and iron(II), and has μeff=2.95 BM. When heated in vacuo it decomposes evolving water above 150° and carbon dioxide above 300° leaving finely divided nickel suitable for catalytic purposes or reacting to form the carbonyl. The oxalate dissolves in acids with decomposition and in ammonia with ammine formation.?? ??
Nickel Oxalate is produced as a greenish white crystalline dihydrate.??(2+) ????? ??????? ?? ?? ? ???
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??(2+) ????? ??????? ?? ??:
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Calcium oxalate
Stannous oxalate
CALCIUM OXALATE MONOHYDRATE
COBALT(II) OXALATE DIHYDRATE
Ammonium oxalate monohydrate
Sodium oxalate
POTASSIUM TITANIUM OXALATE DIHYDRATE
LITHIUM OXALATE
Ferrous oxalate dihydrate
Potassium oxalate monohydrate
Potassium binoxalate
MANGANESE OXALATE
Cupric tartrate
NICKEL(II) OXALATE DIHYDRATE,NICKEL(II) OXALATE DIHYDRATE,NICKEL OXALATE DIHYDRATE,Nickel(Ⅱ) oxalate dihydrate,NICKEL(II) OXALATE
Nickel(II) oxalate hydrate,nickel(ii) oxalate hydrate, puratronic,Nickel(II) oxalate hydrate, Puratronic(R), 99.9985% (metals basis)