Chemical formula: NiSO4.7H2O
Synonyms: nickel sulphate heptahydrate, spirit of nickel.
Amount: 50 g
Appearance and odour: green crystals without appreciable odour.
Grade: 99 %
Packaging: professional wide necked, white HDPE bottle with blue conical seal cap and tamper ring. Labelled. Bottle and cap are UN approved and reusable.
Description and uses: nickel sulphate heptahydrate is probably the most used general purpose, water soluble nickel compound and a precursor to most other nickel salts.
Precipitate as hydroxide using alkali and redissolve in relevant acid to obtain other salts of nickel.
Washing and glowing the hydroxide Ni(OH)2.nH2O and one obtains nickel (II) oxide (NiO) which can be reduced by various reducing agents, including aluminium powder in a Goldschmidt reaction. This reaction needs considerable amounts of calcium fluoride (Fluorite) to dampen its vigour and obtain nickel lump metal.
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