Buy Discount Ceramic Grade Zinc Oxide Powder
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Buy Discount Ceramic Grade Zinc Oxide Powder

Zinc oxide, also known as zinc white, is an important chemical flux material for ceramics. MST® Buy Discount Ceramic Grade Zinc Oxide Powder is widely used in brick and tile glazes and translucent glazes for stoneware, as well as transparent glazes after cooking for tableware. Especially in building ceramic wall and floor tile glaze and low-temperature porcelain glaze are used in large amounts.As the professional manufacture, we would like to provide you MST® Buy Discount Ceramic Grade Zinc Oxide Powder. And we will offer you the best after-sale service and timely delivery.

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Product Description

MST® Buy Discount Ceramic Grade Zinc Oxide Powder

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Zinc oxide, also known as zinc white, is an important chemical flux material for ceramics. Ceramic grade zinc oxide powder is widely used in brick and tile glazes and translucent glazes for stoneware, as well as transparent glazes after cooking for tableware. Especially in building ceramic wall and floor tile glaze and low-temperature porcelain glaze are used in large amounts.

Buy Discount Ceramic Grade Zinc Oxide Powder factory

Ceramic grade zinc oxide powder has a strong fluxing effect in glaze, which can reduce the expansion coefficient of glaze, increase the thermal stability of the product, and at the same time increase the gloss and whiteness of the glaze, improve The elasticity of the glaze. While expanding the melting range, it can also increase the glaze of the glaze.

Production Basic Data Of MST® Buy Discount Ceramic Grade Zinc Oxide Powder:

Product name

Zinc oxide  

Molecular formula

ZnO

CAS NO

1314-13-2

EINECS NO

215-222-5

Density

5.606g/cm3

Molecular weight

81.38

Melting point

1975℃

Boiling Point:

2360ºC

Purity

0.99

Active substance content

0.997

Appearance

White powder or crystal

H.S CODE

2817001000

The Role of MST® Buy Discount Ceramic Grade Zinc Oxide Powder In Ceramics:

1、Used as flux: When ceramic grade zinc oxide powder is used as flux in low-temperature frit glaze, the general dosage is between 5% and 10%, and the dosage in low-temperature raw glaze is generally about 5%.

2、Used as an opacifier: Ceramic grade zinc oxide powder added to glaze rich in Al2O3 can improve the opacity of glaze 

3、Used as a crystallizer: In artistic glaze crystallized glaze, zinc oxide is an indispensable crystallizer. When the glaze is cooled rapidly, it will form a larger crystal pattern, which is very beautiful. In crystal glaze, the amount of zinc oxide is as high as 20-30%.

4、Used to make cobalt sky blue glaze: Ceramic grade zinc oxide powder is a very important flux in cobalt sky blue glaze. It can make cobalt oxide form beautiful sky blue in glaze.

5、Used as ceramic pigment: Due to its strong fluxing effect, zinc oxide can be used as a flux, mineralizer and glaze carrier for ceramic pigments.


Standard:《GB/T3185-2016》

 

 

 

Item

Type1

Type2

Type3

Zinc oxide(Zn0 calculating as dry materia)% ≥

99.7

99.7

99.5

Metal content(as Zn)% ≤

none

none

0.008

Insoluble Matter in Hci %  ≤

0.006

0.008

0.03

Loss on ignition % ≤

0.2

0.2

0.25

Residue on sieve (45um)% ≤

0.1

0.15

0.2

Water soluble matter % ≤

0.1

0.1

0.15

Volatile matter in 105℃ % ≤

0.3

0.4

0.5

Lead(pb)% ≤

0.008

0.05

0.1

Copper(Cu)%  ≤

0.0002

0.0004

0.0007

Manganese( Mn)%

0.0001

0.0001

0.0003

Cadmium (Cd)%

0.002

0.005

0.01

Iron (Fe)%

0.005

0.01

Specific surface area(m2/g)

agree

Oil absorption */g/100g

agree

Color* (compared with standard sample)

agree

Decoloration power*(compared with standard sample)≥

agree

Buy Discount Ceramic Grade Zinc Oxide Powder factory

The use of zinc oxide in ceramics should pay attention to the following points:

1. Before use, it must be calcined at high temperature, the calcination temperature is about 1200 ℃. If directly added to the raw glaze without calcination, it will affect the process performance of the glaze. No calcination is required when adding frit.

2. Excessive amount of zinc oxide in the glaze will affect the glaze gloss.

3. Zinc oxide has a bad influence on some colored glazes, especially chrome glazes.


Buy Discount Ceramic Grade Zinc Oxide Powder factory Buy Discount Ceramic Grade Zinc Oxide Powder factoryBuy Discount Ceramic Grade Zinc Oxide Powder factory


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