Copper(II) Sulfate Pentahydrate CAS：7758-99-8

High Water Solubility:Dissolves quickly in water for easy integration into aqueous processes and formulations.
Stable Crystal Form:Consistent crystalline structure ensures reliable storage, handling and dosing.
Broad Biocidal Action:Effective against fungi, bacteria and algae for use in agriculture and water treatment.
Multi-Use Industrial Grade:Ideal raw material for copper salts, electroplating solutions, pigments and catalysts.
Controlled Purity:Consistent quality delivers predictable results across lab, pharma and industrial applications.

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Product Details

Commonly known as blue vitriol, this compound appears as bright blue crystalline solids with a distinct metallic scent. It dissolves readily in water, with additional solubility in methanol and glycerol, while showing only limited solubility in ethanol.

When exposed to heat, it undergoes irreversible dehydration, losing its water of crystallization to form white, anhydrous copper(II) sulfate. The material is non-flammable but classified as highly toxic, with a characteristic metallic taste.

Despite its hazardous properties, it remains widely used across sectors: as an effective fungicide in agriculture, a standard reagent in laboratory settings, and a key intermediate in industrial chemical production, thanks to its strong biocidal and reactive characteristics.

Copper(II) Sulfate Pentahydrate CAS：7758-99-8

Parameters

Melting point	110 °C (dec.)(lit.)
density	2.284
vapor pressure	7.3 mm Hg ( 25 °C)
refractive index	1.537
storage temp.	Store at +5°C to +30°C.
solubility	320 g/L (20°C)
form	Solid
color	fine blue crystals
Specific Gravity	2.284
Odor	blue cryst. or cryst. gran. or powd., odorless
PH	3.5-4.5 (25℃, 50mg/mL in H2O)
Water Solubility	320 g/L (20 ºC)
Merck	14,2653
Exposure limits	ACGIH: TWA 1 mg/m3 NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
CAS DataBase Reference	7758-99-8(CAS DataBase Reference)
EPA Substance Registry System	Copper sulfate pentahydrate (7758-99-8)

Safety Information

Safety Parameter	Details
Hazard Classification Codes	Xn (Harmful), N (Environmental Hazard), Xi (Irritant)
Risk Phrases	22-36/38-50/53-52/53-36-36/37/38-20/21/22-51/53
Safety Phrases	22-60-61-26-36
UN Transport Classification	UN 3288 (Class 6.1, Packing Group III)
German Water Hazard Class (WGK)	2 (Water Hazard)
RTECS Number	GL8900000
TSCA Inventory Status	Listed (Yes)
Hazard Class	6.1 (Toxic Substance)
Packing Group	III
HS Code	28332500
Hazardous Substance Registry	CAS 7758-99-8 (Hazardous Substance Database Entry)
Acute Toxicity (Oral, Rat LD₅₀)	960 mg/kg (Smyth data)

Copper(II) Sulfate Pentahydrate CAS：7758-99-8

Copper(II) sulfate pentahydrate is widely utilized across multiple sectors, thanks to its unique chemical and biological properties.

It serves as a reliable tool for detecting and eliminating trace moisture in alcohols and other organic solvents, while also acting as an effective fungicide. In agriculture, the pentahydrate form functions as a versatile biocide, providing control against fungi, algae, bacteria, and unwanted vegetation.

Its applications extend further: it is used as an additive in feed and fertilizers, an ingredient in insecticide blends, and a foundational material for producing other copper-based salts. It also plays key roles in textile dyeing as a mordant, in azo dye synthesis as a reagent, and as a preservative for hides, a processing agent in leather tanning, and a protective treatment for wood products.

Copper(II) Sulfate Pentahydrate CAS：7758-99-8