N

Nickel(II) sulfate

IUPAC: nickel(2+) sulfate

NiSO4 Salts CAS 7786-81-4
Expert Written | Fact Checked | Sources Cited | AllChemicals Editorial Team
Quick Reference
Formula / NotationNiSO4
CAS Number7786-81-4
Molecular Weight154.76
Melting Point1558 °F (decomposes) (NTP, 1992)
Boiling PointDecomposes (NTP, 1992)
Density3.68 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubility27.3 to 27.7 % weight % at 68 °F (NTP, 1992)
AppearanceAnhydrous nickel sulfate is a yellow-green crystalline solid. Nickel sulfate can also be obtained as a hexahydrate (NiSO4.6H2O (CAS: 10101-97-0) which is blue to emerald green, and as a heptahydrat...
Also Known Asnickel(2+) sulfate; NICKEL SULFATE; Nickel sulphate; Nickelous sulfate; 7786-81-4; Nickel(2+) sulfate; Nickel sulfate(1:1); Nickel(II) sulfate (1:1); NiSO4; Nickel(2+) sulfate (1:1)
CategorySalts

What is Nickel(II) sulfate?

Nickel sulfate is a metal sulfate having nickel(2+) as the metal ion. It has a role as an allergen. It contains a nickel(2+).

Formula & Notation

NiSO4

IUPAC Name: nickel(2+) sulfate

Other Names / Synonyms: nickel(2+) sulfate; NICKEL SULFATE; Nickel sulphate; Nickelous sulfate; 7786-81-4; Nickel(2+) sulfate; Nickel sulfate(1:1); Nickel(II) sulfate (1:1); NiSO4; Nickel(2+) sulfate (1:1)

Properties & Characteristics

Appearance: Anhydrous nickel sulfate is a yellow-green crystalline solid. Nickel sulfate can also be obtained as a hexahydrate (NiSO4.6H2O (CAS: 10101-97-0) which is blue to emerald green, and as a heptahydrat.... Molecular formula: NiO4S. Molecular weight: 154.76 g/mol. Boiling point: Decomposes (NTP, 1992). Melting point: 1558 °F (decomposes) (NTP, 1992). Density: 3.68 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: 27.3 to 27.7 % weight % at 68 °F (NTP, 1992).

Physical Data

PropertyValue
Melting Point1558 °F (decomposes) (NTP, 1992)
Boiling PointDecomposes (NTP, 1992)
Density3.68 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight154.76
Solubility27.3 to 27.7 % weight % at 68 °F (NTP, 1992)
AppearanceAnhydrous nickel sulfate is a yellow-green crystalline solid. Nickel sulfate can also be obtained as a hexahydrate (NiSO4.6H2O (CAS: 10101-97-0) which is blue to emerald green, and as a heptahydrat...

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Nickel(II) sulfate
Formula NiSO4
CAS Number 7786-81-4
Molecular Weight 154.76
Category Salts
Synonyms nickel(2+) sulfate; NICKEL SULFATE; Nickel sulphate; Nickelous sulfate; 7786-81-4; Nickel(2+) sulfate; Nickel sulfate(1:1); Nickel(II) sulfate (1:1); NiSO4; Nickel(2+) sulfate (1:1)

Frequently Asked Questions

Nickel sulfate is a metal sulfate having nickel(2+) as the metal ion. It has a role as an allergen. It contains a nickel(2+).

More "N" Terms

View all "N" terms →
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.