See All ProductsCopper Sulfate


Algaecide; Fungicide


Formerly used as a fungicide in copper-lime dust. For control of algae, pond weeds in impounded potable waters; use in potable water, irrigation water conveyance systems; root control in sewers; algae, tadpole shrimp in rice. For bacterial and fungal control on citrus, field crops, vegetables, small fruits, tree crops and vines.


Various crystal sizes: medium, large liquid, powder (snow) form, granular, water soluble.


Common Names

Copper Sulfate; Copper Sulphate; Copper Sulphate Pentahydrate; Cupric Sulfate

CAS Codes

7758-99-8 (pentahydrate); 7758-98-7 (anhydrous)

Other Code Number

SHA 024401



Cupric sulfate pentahydrate


Blue color with no odor. Absorbs moisture readily when exposed to air.

Molecular Formula


Mode of Action / Resistance Management

Chemical Group


Mode of Action

Causes imbalance of copper with other enzyme metal cofactors, resulting in enzyme blockage

Action Group

Plant cells

Environmental Guidelines


Fish: LC50 31 mg/l (rainbow trout). Bee: Toxic

Water Solubility

Very soluble

Safety Guidelines

Signal Word


Toxicity Class



(Rat): Oral LD50 470 mg/kg. Nontoxic dermally or by inhalation. Corrosive to eyes. Causes severe skin irritation

Handling/Storage Caution

Harmful if absorbed through skin or inhaled. May cause skin sensitization reactions in certain individuals. Avoid contact with skin, eyes, clothing, or breathing dust

Protective Clothing

Long-sleeved shirt and long pants. Chemical-resistant gloves. Protective eyewear. Shoes plus socks.

Emergency Guidelines

First Aid

Get medical aid. Eyes: hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue to rinse eye. Skin: remove contaminated clothing. Rinse skin immediately with plenty of water for 15-20 minutes. Ingestion: sip a glass of water if able to swallow. Do NOT induce vomiting unless told to do so by the poison control center or doctor. Do not give anything by mouth to an unconscious person. Inhalation: move person to fresh air. If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by mouth to mouth, if possible