Cu(NO₃)₂·3H₂O

Copper(II) Nitrate Trihydrate

Copper(II) nitrate trihydrate (Cu(NO3)2.3H2O, CAS 10031-43-3) is a hygroscopic blue-green crystalline copper salt, freely soluble in water and lower alcohols. In solution it dissociates into Cu2+ and NO3- ions: the nitrate behaves as a mild oxidizer while the Cu2+ can be reduced to metallic copper, calcined to copper oxide, or precipitated as a basic carbonate depending on the redox and pH path. Being halide-free, it suits processes where chloride contamination would poison a catalyst or plating bath. Primary uses: catalyst and supported-catalyst precursor (impregnation onto alumina or zeolite carriers), electroless and immersion copper surface-coating chemistry, CuO and Cu2O routes for ceramics and pigments, and laboratory/R&D synthesis. In bath formulation it is dosed to a target Cu2+ concentration rather than a fixed wt%, commonly a few to tens of g/L. Grade: Cu >=14% min, with Cl, Fe, Pb, Al, S and Si each <=10 ppm and Na/Mg <=20 ppm, verified by ICP-MS (Pb <=10 ppm, semiconductor-adjacent threshold). COA, MSDS and SDS per lot; FPC + CP on request. Multi-regional sourcing, CIF Marmara or Gebze bonded stock, ~20 MT FCL with smaller lots on request. Send your target Cu2+ spec and lot size for a COA-backed RFQ.

Technical Specifications

Cu	≥ 14% min
Cl	≤ 10 ppm
Fe	≤ 10 ppm
Pb	≤ 10 ppm
Al	≤ 10 ppm
Ca	≤ 100 ppm
Na	≤ 20 ppm
Mg	≤ 20 ppm
S	≤ 10 ppm
Si	≤ 10 ppm
CAS	10031-43-3
Form	Crystal — blue-green

Arsam Standard

Grades	High-purity / catalyst grade (battery-adjacent) · CAS 10031-43-3
International Reference	CAS 10031-43-3 · purity-grade basis
Packaging	25 kg HDPE drum · 1 MT IBC · Jumbo big bag · ~20 MT FCL
Documentation	COA · MSDS · SDS · FPC + CP (on request)
Quality Control	ICP-MS · Pb ≤10 ppm (semiconductor-adjacent threshold)
Minimum Order	Container-scale ~20 MT FCL / smaller lot on request
Incoterms	FOB / CIF / CFR / DAP
Lead Time	Road TIR (TR + neighboring) · sea container (long-haul)

International standards are a reference basis; certificates provided on request with document verification.

Applications

Catalyst precursor

High-purity industrial use

Surface coating chemistry

Laboratory & R&D

Frequently Asked Questions

At what purity level is Cu(NO₃)₂·3H₂O supplied?

Spec thresholds at Pb ≤10 ppm + Cl/Fe/Al ≤10 ppm, close to battery / catalyst grade segment. Well above standard plating-galvano grade. Every lot is delivered with COA + MSDS + SDS documents; FPC + CP certificates on request.

Which sectors is it suitable for?

High-purity catalyst formulation, battery cathode precursor research applications, surface coating (specialty stainless / decorative), electrochemistry laboratories, R&D centers. The tight Pb level also opens the door to semiconductor-adjacent applications.

What are the packaging and tonnage options?

25 kg HDPE drum standard, 1 ton IBC + jumbo big bag for large tonnage. Container-scale (~20 ton FCL) supply available. Shipment by road truck (TR domestic + neighboring countries) and sea container (long-haul).

What is the theoretical calculation for the Cu spec?

Cu(NO₃)₂·3H₂O molar mass 241.6 g/mol, theoretical Cu content 26.3%. A 14% min threshold indicates a specific application target (aqueous solution or dilute formulation); for standard trihydrate crystal, 26%+ Cu is expected. We directly confirm the customer's spec.