Can anhydrous copper sulfate be used as a desiccant?

Anhydrous copper sulfate is often used as a desiccant. It is a white or grayish white powder. It will show weak acidity and blue color when it meets aqueous solution. If the generated copper sulfate pentahydrate is formed, it will become the copper sulfate we are more familiar with. In addition to being a desiccant, it can also be used as an analytical reagent. It is often used as a clarifier in food grade and is used in the production of preserved eggs and wine.

Can anhydrous copper sulfate be used as a desiccant?

Anhydrous copper sulfate (a white powder obtained by heating and dehydrating copper sulfate, with the chemical formula CuSO4.5H2O, which turns blue when it comes into contact with water) is usually used in experiments to prove the presence of water. Anhydrous copper sulfate is an important raw material for preparing other copper salts in the chemical industry. Mainly used as raw material for ship bottom antifouling paint, desiccant, catalyst, etc.

Anhydrous copper sulfate can be used as a desiccant, but generally people use it in experiments not for drying, but to test the production of water. If you want to use it as a desiccant, it is fine.

Anhydrous copper sulfate use

Used as analytical reagents, for example, it can be used in biology to prepare Fehling's reagent for identifying reducing sugars and liquid B of biuret reagent for identifying proteins, but it is usually prepared and used immediately;

Used as food grade chelating agent and clarifying agent in the production process of preserved eggs and wine;

Industrial field. Used to manufacture other copper salts such as cuprous chloride, cupric chloride, copper pyrophosphate, cuprous oxide, cupric acetate, cupric carbonate, copper monoazo dyes such as reactive brilliant blue, reactive violet, etc.;

In the coating industry, it is used to produce antifouling paint for ship bottoms; in the electroplating industry, it is used as the main salt and copper ion additive for full-bright acid copper plating; in the printing and dyeing industry, it is used as a mordant and an oxygen aid for fine dyeing cloth; in the organic industry, it is used as a catalyst for synthetic fragrances and dye intermediates, and an inhibitor for methyl methacrylate. Anhydrous salts are used to catalyze transacetalization reactions. The anhydrous salt reacts with potassium permanganate to form an oxidizing agent for the conversion of primary alcohols.

In the agricultural field, it is mixed with lime water to form Bordeaux mixture, which is used as a fungicide to control fungi on crops and prevent rot of fruits. Since copper ions are toxic to fish, the dosage must be strictly controlled. It is also used as the main raw material of trace element copper in feed additives in the aquaculture industry; and as a dehydrating agent for alcohols and organic compounds. Gas desiccant.

In chemistry education, copper sulfate is often included in children's chemical experiment reagents for use in crystal formation experiments and copper electroplating experiments. Because of its toxicity, it is not recommended for use by young children. Copper sulfate can also be used to demonstrate the process of crystal dehydration and weathering and the acquisition of crystal water. In the junior high school experimental test, the law of conservation of mass was verified using the substitution reaction between copper sulfate and iron. It can also produce sulfuric acid.

Used as an emetic in the medical field.