Name: 95/99/99.5%min ZnO Calcined Zinc Oxide CAS1314-13-2
Availability: InStock

95/99/99.5%min ZnO Calcined Zinc Oxide CAS1314-13-2

Our high purity Calcined Zinc Oxide 95/99/99.5%min ratio is significant, good fluidity, with its production of glaze shrinkage is small, the glaze is not easy to pinhole and crack. The quality standard of calcined zinc oxide is the same as that of grade zinc oxide except for the ratio. After calcined at high temperature, zinc oxide shows light yellow and its melting point is 1975ºC.

Cas No. :
1314-13-2
Molecular Formula :
ZnO
Density :
5.606 g/cm³
Melting point :
1975ºC
HS code :
2817001000
EINECE NO. :
215-222-5
Packing :
50kg vowen bag
Apperance :
White or Light Yellow powder
Purity :
95/99/99.5%min

Product Details

Basic information

Zinc oxide is an oxide of zinc. It is insoluble in water but soluble in acids and strong alkalis. It is a white solid, so it is also called zinc white. It can be obtained by burning zinc or roasting sphalerite (zinc sulfide). In nature, zinc oxide is the main component of the mineral wurtzite. Although there are two ways to manufacture artificial zinc oxide: by oxidizing pure zinc or by calcining zinc ore. Zinc oxide is used as an additive in a variety of materials and products, including plastics, ceramics, glass, cement, lubricants, paints, ointments, adhesives, gap-filling materials, pigments, food (zinc supplements), batteries, ferrite materials, flame-retardant materials and medical first aid bandages, etc.

Specification

ITEM	STANDARD			MF	ZnO
ZnO	95%min	99%min	99.5%min	MW	81.38
Fe2O3	0.30%max	0.06%max	0.06%max	CAS NO.	1314-13-2
PbO	0.60%max	0.05%max	0.05%max	EINECE NO.	215-222-5
HCL Insoluble	0.30%max	0.02%max	0.02%max	Purity	95/99/99.5%min
LOI	0.10%max	0.10%max	0.10%max	Appearance	White or Light Yellow powder
Moisture	0.012%max	0.0066%max	0.0066%max	HS code	2817001000
Water Soluble Substance	0.60%max	0.45%max	0.45%max	Density	5.606g/cm3
Specific Gravity	2.8%max	2.9%max	2.9%max	Package	50kg woven bag
Residue -325mesh	0.60%max	0.60%max	0.30%max	Melting Point	1975ºC

Application

1. Used as flux: when ZnO is used as flux in low-temperature frit glaze, the general dosage is between 5% and 10%, and about 5% in low-temperature raw glaze.

2. Used as opacification agent: Zinc oxide was added to glazing with high Al2O3 to improve opacification of glazing. Because ZnO can form zinc spinel crystals with Al2O3. In zinc-containing opacities glazes, Al2O3 can improve the whiteness and opacities of glazes. SiO2 can improve the gloss of the glaze.

3. Used as crystallization agent: in the art glaze crystal glaze, ZnO is indispensable crystallization agent, in the molten

glaze cooling, it forms a large crystal pattern, very beautiful. The amount of ZnO in crystalline glaze is up to 20 ~ 30%.

4. To make cobalt blue glaze: ZnO is a very important flux in cobalt blue glaze, it can make cobalt oxide in the glaze to form a beautiful sky blue.

5. Used as ceramic pigments: because of its strong melting effect, ZnO can be used as a flux of ceramic pigments, mineralizing agent and glaze color carrier. Used as main raw material in brown ceramic color series

6. As a glass additive: add aluminum and nitrogen zinc oxide transparency up to 90%, can be used as a glass coating, let visible light through at the same time reflect infrared. Paint can be applied on the inside or outside of window glass to achieve the effect of heat preservation or insulation.