No matter what the composition of copper is, it is harmful. Long-term exposure will affect the respiratory system and skin, especially those copper with other components (even if the composition is inactive), as long as long-term contact (powdered) will be harmful. Human body causes pollution!!!

A colorless transparent liquid with a pungent odor. Its vapor is tear gas, which is dissolved in benzene, ethanol, and ether. It is used as an acetylating agent, and it is used in the manufacturing of drugs (aspirin), dyes, and cellulose acetate. Grade Copper Sulfate Pentahydrate is prepared by oxidation with oxygen at 55~65°C in the presence of a catalyst. Health hazards: It is irritating after inhalation, causing cough, chest pain, and difficulty breathing. Direct eye contact can cause burns; steam is irritating to eyes. Skin contact can cause burns. Oral burns the mouth and digestive tract, causing abdominal pain, nausea, vomiting and shock, etc. Chronic effects: Workers who are chronically affected by the steam of this product can cause wind conjunctivitis, photophobia, upper respiratory tract irritation, etc. Preventive measures : Less contact, wear a gas mask.

The Electroplating Grade Copper Sulfate Pentahydrate solution is blue-green. The h+ in the chlorophyllin is replaced by cu2+ to form copper chlorophyll. The color is more bright and stable than the original chlorophyll. According to this principle, the Electroplating Grade Copper Sulfate Pentahydrate can be treated to preserve the green specimen.