Zinc Oxide

About Zinc Oxide

Zinc Oxide is used in many applications because of its variety of functions. Recent developments have expanded the market, such as heat dissipation, transparent conductive layer for solar cell and flat panel display replacing ITO, LED, transparent transistor, thermoelectric conversion and more. We have been researching and developing as a total solution provider/ manufacturer for variety of Zinc Oxide. Still, the tire and rubber industry is the major user of Zinc Oxide. In addition to the quality and cost, we promise to supply the necessary quantity as a leading manufacturer in Asia from our Japan, China, Thailand factory.

Grade

	J1		J2		J3
	JIS	HCT	JIS	HCT	JIS	HCT
Appearance	White	White	White	White	-	-
Purity (%)	99.5↑	99.8	99.5↑	99.8	99.0↑	99.5
Pb (%)	0.005↓	0.0007	0.03↓	0.0012	0.3↓	0.14
Cd (%)	0.002↓	0.0001	0.01↓	0.0002	0.1↓	0.04
Amount reduced by oven (%)	0.3↓	0.11	0.3↓	0.11	0.3↓	0.12
Remaining amount by sieve (%)	0.1↓	0.01	0.1↓	0.01	0.1↓	0.03
water soluble (%)	0.1↓	0.01	0.1↓	0.01	0.5↓	0.03

Specification

Fundamental physical properties

Chemical formula				ZnO
Chemical formula weight (g.mol^{− 1})				81.39
Melting point (℃)				1975 (pressure)
True density (g cm^{− 3})				5.5～5.7
Hardness (Mohs)				4～5
refractive index				1.9～2.0
Solubility (g/100g H2O)				3～5x10^{− 4}(25℃)
Heat capacity (J/K mol)				40.3 (0℃)
Thermal conductivity (W/m K)				25.2 (93℃)
Crystal structure				hexagonal wurtz type

General characteristics

Specific surface area (m²/g)				2～6
Particle size (µm)				0.2～0.6
Bulk specific volume (powder ml/100g) (granular ml/100g)				340～400
				30～120
Angle of repose (powder, degrees) (granular, degree)				45～50
				30～40
Oil absorption amount (ml/100g)				10～15
chemical resistance				Soluble in dilute acids and alkalis
Appearance				White or yellowish powder

Main Usage