Anhydrous copper sulfate (chemical formula: CuSO₄) is a grayish-white or off-white powder with strong hygroscopic properties. It is widely used in industry, agriculture, and scientific research. Below are its main applications:
1. Industrial Uses
-
Desiccant
Anhydrous copper sulfate is used as a drying agent for gases or liquids, especially for dehydrating alcohols and organic solvents. -
Chemical Reagent
In laboratories, it is used as an indicator for the presence of water. Anhydrous copper sulfate is white, and it turns blue (to form copper sulfate pentahydrate) when it absorbs water. -
Electroplating and Batteries
It is used in the electroplating industry for producing copper coatings, and as an electrolyte component in certain types of batteries. -
Catalyst
Anhydrous copper sulfate is used as a catalyst in some organic reactions, such as in the synthesis of propargyl alcohol compounds or oxidation reactions.
2. Agricultural Uses
Although copper sulfate pentahydrate is more commonly used in agriculture, anhydrous copper sulfate can be used to produce various copper-containing pesticides and fungicides, such as Bordeaux mixture.
3. Research and Laboratory Applications
-
Used in inorganic synthesis experiments, reaction kinetics studies, and material analysis.
-
A classic material for testing water content (e.g., pre-drying before Karl Fischer titration).
Precautions
Anhydrous copper sulfate is toxic to some extent, especially harmful to aquatic life. Proper protective measures should be taken during use to avoid inhalation of dust or direct skin contact.
Post time: Jun-06-2025
