Quick Answer: The Laboratory Reagent Copper Nitrate is a copper(II) nitrate salt and oxidiser used under supervision for copper-ion and nitrate-salt studies, solution preparation and specified chemical-analysis procedures.
Last updated: October 2026
Key Features
Anhydrous Cu(NO3)2, CAS 3251-23-8
Trihydrate Cu(NO3)2·3H2O, CAS 10031-43-3
Supports copper-ion, nitrate-ion and stoichiometry demonstrations
Oxidiser, stored away from combustibles, organic matter and reducing agents
Copper-containing residues kept out of drains
Technical Specifications
Specification
Value
Chemical name
Copper(II) nitrate
Formula, anhydrous
Cu(NO3)2
Formula, trihydrate
Cu(NO3)2·3H2O / CuH6N2O9
Molecular weight, anhydrous
About 187.56 g/mol
Molecular weight, trihydrate
About 241.60 g/mol
About This Product
Copper nitrate solutions are used to teach copper(II) ion behaviour, nitrate salts and solution concentration. The hydrate form changes the molecular weight and appearance, so the form on the label is identified before weighing. Goggles, gloves and a lab coat are worn, only the needed quantity is taken with a clean, dry spatula, and the reagent is never used in pyrotechnic or fuel mixtures. The Laboratory Reagent Copper Nitrate is available for supply within India and for export to Central African Republic, South Korea, Uganda, Fiji and Mozambique.
Frequently Asked Questions
Q1. Which molecular weight applies to copper nitrate? About 187.56 g/mol for the anhydrous salt and about 241.60 g/mol for the trihydrate. The form on the label decides which value is used.
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