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Nickel(II) sulfate heptahydrate

Also known as: Nickel sulfate heptahydrate, NICKEL SULFATE HEPTAHYDRATE, NICKEL(II) SULFATE HEPTAHYDRATE, nickel(2+),sulfate,heptahydrate, sulfuric acid, nickel(2+) salt (1:1), heptahydrate, MFCD00149814, EINECS 232-104-9, Nickel(II)sulfateheptahydratecobaltfreegr, NickelSulphateAr

Nickel(II) sulfate heptahydrate (CAS 10101-98-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H14NiO11S and a molecular weight of 280.86300 g/mol. Key properties include a melting point of 840ºC, a boiling point of 330ºC at 760mmHg and a density of 1.948 g/mL at 25 °C(lit.). It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H332 — Harmful if inhaled and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10101-98-1
Jingsj CID
J-1492462-8
Molecular Formula
H14NiO11S
Molecular Weight
280.86300 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026
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Physicochemical Properties

Melting Point840ºC
Boiling Point330ºC at 760mmHg
Density1.948 g/mL at 25 °C(lit.)
Exact Mass279.96100
PSA153.25000
Vapor Pressure3.35E-05mmHg at 25°C

GHS Safety & Compliance

Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H341 — Suspected of causing genetic defects
  • H372 — Causes damage to organs through prolonged exposure
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Nickel(II) sulfate heptahydrate?

The CAS number of Nickel(II) sulfate heptahydrate is 10101-98-1.

What are the molecular formula and molecular weight of Nickel(II) sulfate heptahydrate?

Nickel(II) sulfate heptahydrate has molecular formula H14NiO11S and molecular weight 280.86300 g/mol.

Is Nickel(II) sulfate heptahydrate hazardous?

Nickel(II) sulfate heptahydrate has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H332 — Harmful if inhaled; H315 — Causes skin irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Nickel(II) sulfate heptahydrate (CAS 10101-98-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492462-8 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.