For use as an analytical reagent, for example, a Fiolin reagent for identifying a reducing sugar in a biological configuration and a liquid B for a biuret reagent for identifying a protein, but it is usually used now;
Used as a food grade chelating agent and clarifying agent in preserved egg and wine production processes;
Antifouling paint; electroplating industry used as full bright acid copper plating main salt and copper ion additive; printing and dyeing industry used as mordant and dyeing agent for dyeing cloth; organic industry as catalyst for synthetic perfume and dye intermediate, methyl A polymerization inhibitor for methyl acrylate.
Anhydrous salts catalyze the conversion of acetals. Anhydrous salts can also react with potassium permanganate to make oxidants and are often used in the conversion of primary alcohols.
From the perspective of agricultural applications, copper sulfate can form a mixture with lime water to make fungicide. This fungicide is effective in preventing fruit decay and removing fungus from the fruit. In addition, in aquaculture, attention should be paid to the fact that copper can be used as a trace element in feed additives, but excessive amounts of copper will be toxic to fish, so it is necessary to strictly control the proportion of additives.
A dehydrating agent for alcohols and organic compounds. Gas desiccant.
In school chemistry education, copper sulfate can be used as a test reagent for students. Common test experiments include crystal process testing, copper electroplating, weathering and re-crystallization after water loss. Copper sulfate contains some toxicity and is not recommended for young children. In junior high school education experiment test, copper sulfate and iron can produce replacement reaction, sulfuric acid.
The medical field is used as an emetic.