China Indirect ZnO powder suppliers
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China Indirect ZnO powder suppliers

MST® China Indirect ZnO powder suppliers physical properties Appearance: Indirect zinc oxide powder is a kind of metal oxide, it is white hexagonal crystal or powder at room temperature, odorless, tasteless, sandless, and the particle size is about 0.1-10 microns. Boiling point (℃): 2360 Melting point (℃): 1975 Flash point ℃ : 1436 Density g/cm3: 5.606 Refractive index: nD20 2.008~2.029 Solubility: insoluble in water, the solubility of 29 C in water is 1.6 mg/L. It is soluble in acid and strong alkali, ammonia water and ammonium salt solution. Stability: stable MST® China Indirect ZnO powder suppliers chemical properties Molecular formula: ZnO CAS Number: 1314-13-2 EINECS Number: 215-222-5 Relative molecular mass: 81.3894 (according to 2010 international relative atomic mass) You can rest assured to buy customized MST® China Indirect ZnO powder suppliers from us. We look forward to cooperating with you, if you want to know more, you can consult us now, we will reply to you in time!

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Product Description

MST® China Indirect ZnO powder suppliers

We keep on with the theory of "quality first, provider initially, constant improvement and innovation to meet the customers" with the management and "zero defect, zero complaints" as the standard objective. To great our company, we deliver the merchandise using the fantastic excellent at the reasonable price for Best-Selling China MST® China Indirect ZnO powder suppliers, We believe this sets us apart from the competition and makes buyers choose and trust us. We all wish to generate win-win deals with our prospects, so give us a phone today and make a new friend!
Best-Selling China Zinc Oxide Powder,  Zinc Oxide Pigment, What is good price? We give customers with factory price. In the premise of good quality, efficiency need to be paid attention to and maintain appropriate low and healthy profits. What is a fast delivery? We make the delivery according to customers' requirements. Although delivery time depends on the order quantity and the complexity of it, we still try to supply items in time. Sincerely hope we could have long term business relationship.

China Indirect ZnO powder suppliers physical properties

Appearance: Indirect zinc oxide powder is a kind of metal oxide,

it is white hexagonal crystal or powder at room temperature, odorless, tasteless, sandless, and the particle size is about 0.1-10 microns.

Boiling point (℃): 2360

Melting point (℃):1975

Flash point℃ : 1436

Density g/cm3: 5.606

Refractive index: nD20 2.008~2.029

Solubility: insoluble in water, the solubility of 29 C in water is 1.6 mg/L. It is soluble in acid and strong alkali, ammonia water and ammonium salt solution.

Stability: stable

MST® China Indirect ZnO powder suppliers chemical properties

Molecular formula: ZnO

CAS Number: 1314-13-2

EINECSNumber: 215-222-5

Relative molecular mass:

81.3894 (according to 2010 international relative atomic mass)


The differencebetween China Indirect ZnO powder suppliers and the directZnO powder

There are directZnO powder and indirectZnO powderfor the production of zinc oxide. The difference between indirectZnO powder and directZnO powder is that their manufacturing materials and processes are different, so the fields of application are also different.

1. Direct Zno powder

DirectZnO powdermostly uses zinc ore, zinc ash, and zinc concentrate as raw materials, which are oxidized and roasted at high temperature and then reduced to zinc vapor by adding coal.

The zinc vapor is oxidized with hot air to obtain Direct ZnO powder. The product purity of this process is low, generally between 75% and 95%, with high or low impurity content.

2. MST® Indirect ZnO powder

The raw material of indirectZnO powder is metal zinc ingots or zinc slag obtained by smelting. It is a white hexagonal crystal or powder at room temperature with a particle size of about 0.1-10 microns. Hardly soluble in water, soluble in acid and strong alkali, ammonia and ammonium salt solution. It is odorless, tasteless and sandless. It turns yellow when heated, and turns white again after cooling, and sublimates when heated to 1800°C.

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

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