Copper nitrate trihydrate

Copper nitrate trihydrate (CAS 10031-43-3), also sold as cupric nitrate trihydrate, is a water-soluble copper salt used across industrial chemistry as a catalyst precursor, oxidizing agent, and surface treatment chemical. Its high solubility and reactive copper content make it a practical source of Cu²⁺ ions in processes where consistent metal delivery matters. In catalyst manufacturing, it serves as a precursor for copper oxide catalysts.

These catalysts are used in hydrogenation, oxidation, and exhaust gas treatment systems. Textile and leather processors apply it in dyeing and tanning operations, where it acts as a mordant to fix colorants and improve wash fastness. In printed circuit board and metal finishing operations, it supports etching, patination, and surface oxidation treatments on copper and copper alloys. This versatility makes it essential for modern electronics manufacturing.

Agricultural formulators use it as a copper-source micronutrient in foliar sprays and soil correction products targeting copper-deficient crops. It ensures healthy plant growth and improves overall yield in various farming sectors. Copper nitrate trihydrate is supplied as blue crystalline granules or powder. Technical grade is the standard commercial form, with laboratory-grade material available for catalyst and analytical applications.

Bulk supply is common in 25 kg bags or drums, with purity specifications typically ranging from 98% to 99%+. The material must be stored in a cool, dry area away from combustible materials due to its oxidizing properties.