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Salts and minerals

Copper sulfate vs zinc sulfate

Copper sulfate (CuO4S, CAS 7758-98-7) and zinc sulfate (O4SZn, CAS 7733-02-0) are both listed under sulfates and sulfur salts.

Copper sulfate has a molar mass of 159.61 g/mol, zinc sulfate 161.45 g/mol.

Measured melting points are 590 °C for copper sulfate and 680 °C for zinc sulfate.

Copper sulfate carries the GHS signal word Warning, zinc sulfate Danger.

On CompoundList, 579 suppliers list copper sulfate and 401 suppliers list zinc sulfate.

Data last updated 7 October 2026

Copper sulfate and zinc sulfate compared side by side
Copper sulfate chemical structure, CuO4S, CAS 7758-98-7
Copper sulfate
Zinc sulfate chemical structure, O4SZn, CAS 7733-02-0
Zinc sulfate
Identity
Name in our databaseCopper sulfateZinc sulfate
CAS number7758-98-77733-02-0
Molecular formulaCuO4SO4SZn
Molar mass159.61 g/mol161.45 g/mol
IUPAC namecopper sulfatezinc sulfate
EC number231-847-6231-793-3
Physical properties
AppearanceGrayish-white to greenish-white rhombic crystals or amorphous powder /SRP: somewhat wet/Colorless, orthorhombic crystals
Melting point590 °C680 °C
Boiling point650 °CNot recorded
Density3.6 g/cm³3.8 g/cm³
SolubilityIn water, 243 g/l @ 0 °C.54.480 lb/100 lb water /Heptahydrate/
LogP (octanol/water)Computed from the structure-1.34-1.34
Safety (GHS)
Signal wordWarningDanger
Pictograms
GHS07: Harmful or irritant
GHS09: Hazardous to the environment
GHS05: Corrosive
GHS07: Harmful or irritant
GHS09: Hazardous to the environment
Hazard statements
  • H302 Harmful if swallowed.
  • H315 Causes skin irritation.
  • H319 Causes serious eye irritation.
  • H400 Very toxic to aquatic life.
  • H410 Very toxic to aquatic life with long lasting effects.
  • H302 Harmful if swallowed.
  • H318 Causes serious eye damage.
  • H400 Very toxic to aquatic life.
  • H410 Very toxic to aquatic life with long lasting effects.
UN numberUN 3288UN 3077
Uses and classification
Uses and functions
  • Skin conditioning agents
  • Fertilizers and micronutrients
  • Trace minerals
  • Aetiopathogenetic role
  • Agrochemical
  • Emetic
  • Cardiovascular drugs
  • Fertilizers and micronutrients
  • Trace minerals
  • Agrochemical
  • Anti-anaemic agent
  • Anti-obesity agent
CategoryInorganic chemicals › Sulfates and sulfur saltsInorganic chemicals › Sulfates and sulfur salts
HS code283325Of copper283329Sulphates, alums, peroxosulphates (persulphates), other
Market on CompoundList
Suppliers579 suppliers401 suppliers
Supplier countries59 countries, most in India, United States, China49 countries, most in India, China, United States
Price rangeOnly prices set by suppliers who manage their own profilePrice on requestPrice on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Copper sulfate
Zinc sulfate

More comparisons

Other common chemical pairs, compared the same way.