Copper sulfate

Copper sulfate is an inorganic chemical compound with the formula CuO4S and CAS number 7758-98-7. This versatile copper salt has a molecular weight of 159.61 g/mol and appears as blue crystals or powder. It is classified as moderately hazardous with acute toxicity, skin and eye irritation properties, and significant environmental toxicity to aquatic life. Copper sulfate is widely used across multiple industries for its antimicrobial and chemical properties.

Copper sulfate typically appears as bright blue crystalline powder or granules when in its pentahydrate form. It is highly soluble in water, creating characteristic blue solutions. The compound is odorless and has good thermal stability under normal conditions. It readily absorbs moisture from air and can exist in both anhydrous (white) and hydrated (blue) forms, with the pentahydrate being the most common commercial form.

Copper sulfate serves multiple industrial and agricultural applications. It is primarily used as a fungicide and algaecide in agriculture, swimming pool treatment, and water purification systems. Industrial applications include electroplating, mining operations as a flotation agent, textile dyeing, and as a catalyst in chemical processes. It is also used in animal feed supplements, wood preservation, and in the production of other copper compounds.

Copper sulfate requires careful handling due to its toxicity and irritant properties. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and dust masks when handling powder forms. Ensure adequate ventilation in work areas and avoid creating dust clouds. Wash hands thoroughly after handling and avoid eating, drinking, or smoking in work areas. Keep containers tightly closed and handle in accordance with GHS07 and GHS09 pictogram warnings.

Copper sulfate should be stored in a cool, dry, well-ventilated area away from moisture and incompatible materials. Keep containers tightly sealed to prevent moisture absorption and contamination. Store away from alkalis, aluminum, and magnesium which can react with copper sulfate. Ensure storage areas are equipped with appropriate spill containment measures due to its high aquatic toxicity. Maintain storage temperatures within normal ambient ranges and protect from direct sunlight.

In case of skin contact with copper sulfate, immediately remove contaminated clothing and wash affected area with plenty of soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. In case of ingestion, rinse mouth and seek immediate medical attention. Do not induce vomiting unless directed by medical personnel.

Copper sulfate disposal must comply with local and European waste regulations due to its environmental toxicity classification. Never discharge into drains, waterways, or soil due to its acute and chronic aquatic toxicity. Contact licensed waste disposal companies for proper treatment and disposal. Small quantities may require neutralization before disposal. Always consult local environmental authorities for specific disposal requirements and maintain proper waste documentation as required by regulations.

Copper sulfate is classified as ADR Class 9 (miscellaneous dangerous goods), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation during transport. Use UN-approved packaging and ensure proper hazard labels are displayed. Transport vehicles must carry appropriate emergency information and equipment. Drivers require ADR training for Class 9 materials. Ensure compliance with international transport regulations for cross-border shipments within Europe.

Copper sulfate is subject to various European regulations including REACH registration requirements and CLP classification standards. It is not currently listed as a SVHC (Substance of Very High Concern) under REACH. However, its classification as aquatic toxic requires compliance with environmental protection regulations. Users must follow occupational safety guidelines and may need to register uses under REACH depending on quantities. Always check current regulatory status before use.

Copper sulfate is available throughout Europe from specialized chemical distributors like OYSI. OYSI provides reliable supply of quality copper sulfate to industrial customers across European markets with proper documentation and regulatory compliance. When sourcing copper sulfate, ensure suppliers provide complete safety data sheets, certificates of analysis, and comply with REACH requirements. Professional distributors can also provide technical support and regulatory guidance for specific applications.