Copper Suspension (Cu, Purity: >99%, Diameter: <50nm)

Typical Properties
CAS	7440-50-8
Catalog	ACM7440508-80
Molecular Weight	63.55 g/mol
Boiling Point	2580 °C
Melting Point	1083.4 °C(lit.)
Flash Point	-23 °C
Purity	99.9 %
Density	8.92 g/cm3
Appearance	Liquid
Storage	2-8 °C
Color	Black
Composition	Cu
Concentration	2 % in NMP/Water
Diameter	<50 nm
pH	7.0±0.5
Precautions for use	This product is inert gas anti-static packaging, it should be sealed and stored in a dry and cool environment.
Quality Level	200
Shipping	Ambient Temperature
Solvent	NMP/Water

Overview

Description

Nano-copper colloidal particles are widely used in catalysis, magnetic fluid, lubrication and other fields because of their specific physical and chemical properties. Nano copper powder and colloidal copper are prepared by variable current laser ion beam gas phase method, which has large industrial output, spherical shape, uniform particle size, high crystallinity, high product purity, high surface activity, easy to disperse and industrial application.

Features

·Evenly dispersed, small particles
·Good compatibility, easy to disperse, easy to add a variety of systems
·Good system stability, reliable performance, safety and environmental protection
·High specific surface area, high loading, easy surface functionalization

Application

·Production of Microelectronic Devices
·Catalyst in the reaction process of carbon dioxide and hydrogen to methanol
·Conductive coating treatment on metal and non-metal surfaces
·Conductive paste, used as petroleum lubricant and pharmaceutical industry

Case Study

Copper Nanoparticle Suspension for Oxidation of Waterborne Organic Pollutants

Kalidhasan S, et al. The Canadian Journal of Chemical Engineering, 2017, 95(2), 343-352.

To prepare stable aqueous suspensions of copper nanoparticles (Cu-NPs), polyethylenimine (PEI) was introduced as a stabilizer for bactericidal copper nanoparticles. The prepared PEI-Cu-NPs can be further used to oxidatively degrade organic pollutants in aqueous solutions, such as atrazine. The results show that PEI-Cu-NPs can induce rapid degradation (>99% within 1 hour) of atrazine and other organic water pollutants through the advanced oxidation process (AOP).
Preparation of Copper Nanoparticles (Cu-NPs)
· Stock solution of 1.6 mmol/L PEI in DI water was prepared. Different volumes (1.5, 4, 7, and 10 mL) of the PEI stock solution were then mixed for 5 min with 10 mL of 250 mmol/L Cu (NO3)2·3H2O solution and complementary aliquots of DI water to achieve total volumes of 40 mL.
· Subsequently, addition of 10 mL of 0.5 mol/L NaBH4 to each solution reduced the soluble copper to elemental copper, followed by formation of Cu-NPs.
· The 50 mL Cu-NP suspensions were stirred ( 350 rpm) for 1 h and then dialyzed for 1 day in glass beakers filled with 950 mL DI water.
· 10 mL from the Cu-NPs suspension solutions that were entrapped within the dialysis membranes and 10 mL of the DI water outside the dialysis bag were acidified (0.1 % HNO3) to quantify the concentrations of Cu and B (from NaBH4) with an inductive coupled plasma massspectrophotometer.