硝酸ニッケル ６水和物 化学特性,用途語,生産方法
外観
無色～緑色, 澄明の液体
溶解性
水に易溶。エタノールに可溶。エーテルに不溶。水及びエタノールに溶けやすい。
用途
アルカリ蓄電池,触媒?セラミック用顔料原料,金属表面処理剤 (NITE CHRIP)
用途
原子吸光分析におけるマトリックス修飾剤。
用途
ニッケルメッキ、触媒
使用上の注意
潮解性あり
説明
Nickel (II) nitrate hexahydrate appears as green crystals and substantially soluble in water.
It is stable, a strong oxidiser, and incompatible with reducing agents. It has wide industrial
applications in nickel plating as catalysts and is indirectly associated with other industries
of nickel alloy manufacturers, nickel miners, smelters and refiners, nickel platers, and
exposure to alloys, for example, in coinage.
化学的特性
Green crystal
使用
Nickel plating, manufacturing of ceramic colorsNickel(II) nitrate hexahydrate is used as a precursor in the manufacturing of other nickel salts and supported nickel catalysts. It finds use as a catalyst in organic synthesis. Further it is used in electroplating and as a mordent in textile dyeing. It is a precursor for preparing nickel sulfide-reduced graphene oxide (RGO) composite powders with high initial capacities and good cycling performance. It can be employed in the preparation of nickel and nickel oxide nanocrystals impregnated O-MWCNTs (oxygen-functionalized multi-walled carbon nanotubes) with potential applications in semiconductor industries. It finds use in improving cycling stability ad rate capability of Li2MnO3.
製造方法
Emerald green crystals of the hexahydrate Ni(N03)2?6H20 crystallize
from aqueous solutions at room temperature. These are isomorphous with the corresponding
cobalt(II) salt containing the regular octahedral [Ni(H20)6]2+ ions with Ni-O distances = 2.03 A. The tetrahydrate crystallize above 54° and the dihydrate above 85.4°.
The pale green anhydrous nitrate can be obtained by dehydration of the hydrate with
dinitrogen pentoxide in fuming nitric acid or by the liquid phase reaction of dinitrogen
tetroxide with nickel carbonyl [the gas phase reaction gives the nitrite Ni(N02)2]
Ni(CO)4+2N2O4 -* Ni(N03)2+2NO+4CO
The first product of this latter rather violent reaction is the adduct Ni(NO3)2N2O4 from
which the nitrogen tetroxide is removed by heating in vacuo. It can also be prepared by the
reaction of dinitrogen tetroxide-ethyl acetate mixtures with nickel(II) chloride. The infrared
spectrum shows it to be a typical covalent nitrate. It is involatile and decomposes upon
heating in nitrogen to give the nitrite Ni(NO2)2 above 260°.
一般的な説明
Nickel(II) nitrate hexahydrate (Ni(NO
3)
2.6H
2O) is a hydrated nickel(II) salt. Its thermal degradation has been investigated by thermogravimetric methods under quasi-isothermal conditions.
安全性プロファイル
Confirmed carcinogen.
Moderately toxic by ingestion. When heated
to decomposition it emits toxic fumes of
NOx. See also NICKEL(II) NITRATE.
純化方法
Crystallise it from water (3.3g/mL) by partial evaporation in a desiccator. Store it in a desiccator as it is deliquescent.
硝酸ニッケル ６水和物 上流と下流の製品情報
原材料
準備製品