Nickel(II) sulfate heptahydrate
- CAS NO.：10101-98-1
- Empirical Formula: H4NiO5S
- Molecular Weight: 174.78
- MDL number: MFCD00149814
- EINECS: 600-153-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:24:38
What is Nickel(II) sulfate heptahydrate?
Chemical properties
green to dark green needle-like crystals or powder
The Uses of Nickel(II) sulfate heptahydrate
In electrolytic and electroless nickel-plating; as mordant in dyeing; in catalyst manufacture; in preparation of other nickel Compounds.
The Uses of Nickel(II) sulfate heptahydrate
Nickel(II) sulfate hexahydrate may be used in the preparation of NiFe2O4 nanoparticles (NPs), required for the fabrication of a glucose biosensor.
Definition
ChEBI: A hydrate of nickel sulfate containing nickel (in +2 oxidation state), sulfate and water moieties in the ratio 1:1:7.
General Description
Nickel(II) sulfate hexahydrate is a hydrated nickel salt. Its thermal decomposition in the presence of air and helium has been studied. Its crystals exist in monoclinic and tetragonal polymorphic forms.
Properties of Nickel(II) sulfate heptahydrate
| Density | 1.948 g/mL at 25 °C(lit.) |
| solubility | soluble in ethanol |
| form | Needle-Like Crystals or Powder |
| color | Green to dark green |
| Water Solubility | g/100g H2O: 26.2 (0°C), 37.7 (20°C), 50.4 (40°C) [LAN05]; soluble alcohol [HAW93] |
| Merck | 13,6541 |
| CAS DataBase Reference | 10101-98-1(CAS DataBase Reference) |
| EPA Substance Registry System | Sulfuric acid, nickel(2+) salt (1:1), heptahydrate (10101-98-1) |
Safety information for Nickel(II) sulfate heptahydrate
| Signal word | Danger |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H334:Sensitisation, respiratory H341:Germ cell mutagenicity H372:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for Nickel(II) sulfate heptahydrate
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