Nickel(II) sulfate

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Nickel sulfate
Names
IUPAC name
Nickel(II) sulfate
Systematic IUPAC name
Nickel(II) sulfate
Other names
Niccolum Sulfuricum
Nickelous sulfate
Nickel sulphate
Properties
NiSO4
Appearance yellow solid (anhydride)
blue crystals (hexahydrate)
blue-green crystals (heptahydrate)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Nickel(II) sulfate is inorganic salt of nickel with formula NiSO4. Nickel sulfate has many forms, anhydride, hexahydrate and heptahydrate.In nature occurs as rare mineral retgersite (hexahydrate) or morenosite (heptahydrate).

Properties

Nickel Sulfate is a yellow, green or blue colored, crystalline inorganic compound that produces toxic gases upon heating. Nickel sulfate is used in electroplating and as a chemical intermediate to produce other nickel compounds. Anhydrous nickel sulfate is a yellow-green crystalline solid. Nickel sulfate can also be obtained as a hexahydrate which is blue to emerald green, and as a heptahydrate (NiSO4.7H2O), which is green. Samples can contain variable quantities of water, depending on their previous exposure to moisture or conditions. All forms are mildly toxic and are carcinogenic. All are denser than water.


Availability

Nickel(II) sulfate is sold in many chemical suppliers.

Preparation

Nickel sulfate can be made by reacting nickel hydroxide with sulfuric acid.

Projects

  • Growing crystals

Handling

Safety

Exposure to this substance can cause severe dermatitis, skin and asthma-like allergies and affects the lungs, kidneys, gastrointestinal tract and neurological system. Nickel sulfate is a known carcinogen and is associated with an increased risk of developing lung and nasal cancers.

Storage

In closed bottles.

Disposal

Nickel(II) sulfate should be reduced to an insoluble form and taken to disposal centers. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment.

References

Relevant Sciencemadness threads