Copper sulfate

Copper sulfate is an inorganic chemical compound with the formula CuO4S and CAS number 7758-98-7. It has a molecular weight of 159.61 g/mol and appears as blue crystalline crystals or powder. This versatile copper salt is widely used in industrial applications and is classified as having moderate toxicity with environmental hazard properties. It carries GHS07 and GHS09 pictograms indicating health and environmental warnings.

Copper sulfate typically appears as bright blue crystalline solid or powder when hydrated, or as a white powder when anhydrous. It is highly soluble in water, producing a characteristic blue solution. The compound is odorless and has a metallic taste. It exhibits good thermal stability under normal conditions and can form various hydrated forms, with the pentahydrate being the most common commercial form.

Copper sulfate serves multiple industrial and professional applications including agriculture as a fungicide and pesticide, in electroplating processes, as a catalyst in chemical reactions, and in mining operations for ore flotation. It's also used in textile dyeing, wood preservation, water treatment facilities, and in the production of other copper compounds. The electronics industry utilizes it in printed circuit board manufacturing.

Copper sulfate requires careful handling using appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and dust masks to prevent inhalation. Work in well-ventilated areas and avoid generating dust. The substance is classified as Acute Tox. 4, Skin Irrit. 2, and Eye Irrit. 2, requiring precautions to prevent skin and eye contact. Always wash hands thoroughly after handling.

Copper sulfate should be stored in a cool, dry, well-ventilated area away from incompatible materials such as strong acids, alkalis, and reducing agents. Keep containers tightly closed and protected from moisture to prevent caking. Store away from food, feed, and drinking water. The storage area should be equipped with appropriate spill containment measures and maintained at stable temperatures.

Immediate first aid measures include rinsing affected skin with plenty of water for at least 15 minutes and removing contaminated clothing. For eye contact, flush immediately with water for 15-20 minutes and seek medical attention. If inhaled, move to fresh air immediately. If ingested, rinse mouth with water and seek immediate medical attention. Do not induce vomiting unless directed by medical personnel.

Copper sulfate disposal must comply with local environmental regulations as it's classified as Aquatic Acute 1 and Aquatic Chronic 1, indicating high environmental toxicity. Contact licensed waste disposal companies for proper treatment and disposal. Never discharge into sewers, waterways, or soil. Small quantities may be neutralized and treated according to local authorities' guidelines, but professional disposal is recommended for larger amounts.

Copper sulfate is classified under ADR Class 9 (Miscellaneous dangerous substances), Packing Group III, indicating relatively low transport hazard. It must be properly packaged in approved containers with appropriate labeling including GHS07 and GHS09 pictograms and 'Warning' signal word. Transport vehicles should carry proper documentation and emergency response information. Follow applicable dangerous goods transport regulations.

Copper sulfate is regulated under REACH and CLP regulations in Europe, requiring safety data sheets and appropriate classification labeling. It is not currently listed as a Substance of Very High Concern (SVHC). The compound must comply with biocide regulations when used as pesticide or antimicrobial agent. Industrial users must follow workplace exposure limits and environmental discharge restrictions.

Copper sulfate is available through OYSI, a European chemical distributor specializing in technical-grade chemicals for industrial applications. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. Professional buyers can contact OYSI for quotations, technical specifications, and delivery arrangements tailored to their specific industrial requirements and quantities needed.