Salts & Minerals
REACH
Copper sulfate pentahydrate
CAS Number
7758-99-8
EC Number
231-847-6
Abbreviation
CuSO4
What is Copper sulfate pentahydrate?
Copper sulfate pentahydrate (CAS 7758-99-8), also sold as cupric sulfate pentahydrate, is an inorganic copper salt; characteristic blue crystals.
Where is Copper sulfate pentahydrate used?
- Agriculture: active ingredient in Bordeaux mixture controlling fungal diseases in vineyards, orchards and field crops
- Water treatment: controls algae blooms in reservoirs, irrigation channels and municipal water supplies
- Mining: selective flotation activator for sulfide ores, particularly separation of zinc and lead minerals
- Textile and leather processing: mordant fixing dyes and component in electroplating and surface finishing baths
- It functions as a biocide, algaecide, fungicide and catalyst precursor.
Commercial specifications
- Purity typically 98% to 99%+
- Highly soluble in water and methanol
- Particle size grades suit agricultural, industrial and laboratory applications
Other Names (Synonyms)
CuSO4·5H2O|cupric sulphate pentahydrate|cupric sulfate pentahydrate|Cu(SO4)(H2O)4·H2O|copper(II) sulphate pentahydrate|blue vitriol|Copper(II) sulfate pentahydrate|CuSO4(H2O)5|CuSO4
What are the physical properties of Copper sulfate pentahydrate?
Melting Point 110 °C (decomp)
Density 2.286 g/cm³ @ Temp: 15.6 °C
Appearance Copper sulfate is a greenish-white crystalline solid; the pentahydrate is Blue powder or granules, or ultramarine crystalline solid.
Color fine blue crystals
Odor blue cryst. or cryst. gran. or powd., odorless
Form Solid
Water Solubility 320 g/L (20 ºC)
Vapor Pressure 7.3 mm Hg ( 25 °C)
Refractive Index 1.537
pH 3.5-4.5 (25℃, 50mg/mL in H2O)
How is Copper sulfate pentahydrate classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant GHS09· Environmental Hazard GHS08· Health Hazard
Hazard Statements
H290 May be corrosive to metals
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P234 Keep only in original packaging.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to Copper sulfate pentahydrate?
HS Code 28332500
UN Number 3288
ADR Class 6.1
Packing Group III
Storage Class 13 - Non Combustible Solids
WGK (Germany) 2