Quality Pure Zinc Oxide Powder
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Quality Pure Zinc Oxide Powder

The MST® Quality Pure Zinc Oxide Powder produced is mainly 99.7% content, commonly known as 997 (99.7) zinc oxide.You are welcomed to come to our factory to buy the latest selling, low price, and high-quality MST® Quality Pure Zinc Oxide Powder. We look forward to cooperating with you.

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Product Description

Quality Pure Zinc Oxide Powder

To be able to ideal satisfy client's requirements, all of our operations are strictly performed in line with our motto "High High-quality, Competitive Price tag, Fast Service" for Quotes for China MST® Quality Pure Zinc Oxide Powder, We encourage you to make get hold of as we've been seeking for associates inside our venture. We are sure you are going to locate doing business enterprise with us not only fruitful but also profitable. We are all set to provide you with what you require.
Quots for China MST® Quality Pure Zinc Oxide Powder, With the intensified strength and more reliable credit, we've been here to serve our customers by providing the highest quality and service, and we sincerely appreciate your support. We are going to endeavor to maintain our great reputation as the best merchandise supplier in the world. If you have any questions or comments, you should contact with us freely.

The MST® Quality Pure Zinc Oxide Powder produced is mainly 99.7% content, commonly known as 997 (99.7) zinc oxide.

 

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

H.S CODE

2817001000

Appearance

White powder or crystal 


Inspection method of various indexes of MST® Quality Pure Zinc Oxide Powder:

*Alkalinity of Quality Pure Zinc Oxide Powder: take 1.0g of this product, add 10ml of freshly boiled hot water, shake for 5 minutes, let cool, filter, add 2 drops of phenolphthalein indicator solution to the filtrate, if it appears pink, add hydrochloric acid titrant (0.1mol/l) 0.10ml, the pink color should disappear.

*Quality Pure Zinc Oxide Powder carbonate and insoluble matter in acid: Take 2.0g of this product, add 10ml of water and mix, add 30ml of dilute sulfuric acid and heat on a water bath without bubbles; after stirring, the solution should be clear.

*Weight loss on ignition of Quality Pure Zinc Oxide Powder: Take about 1.0g of the product, accurately weigh it, and ignite it to constant weight at 800℃, and the weight loss shall not exceed 1.0%.

*Quality Pure Zinc Oxide Powder iron salt: take 0.40g of this product, add 8ml of dilute hydrochloric acid, 15ml of water and 2 drops of nitric acid, boil for 5 minutes to dissolve, let cool, add water to make 50ml, after mixing, take out 25ml, add 10ml of water , According to inspection, compared with the control solution made of 1.0ml standard iron solution, it should not be deeper (0.005%).

*Quality Pure Zinc Oxide Powder lead salt: Take 2.0g of this product, add 20ml of water and stir well, add 5ml of glacial acetic acid, put it on a water bath and heat to dissolve, let it cool, filter, and add 5 drops of potassium chromate indicator solution to the filtrate. turbid.

*Quality Pure Zinc Oxide Powder arsenic salt: Take 1.0g of this product, add 5ml of hydrochloric acid and 23ml of water to dissolve it, check according to law, and meet the regulations (0.0002%)


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


Determination of MST® Quality Pure Zinc Oxide Powder content

Take about 0.1g of Quality Pure Zinc Oxide Powder, accurately weigh it, add 2ml of dilute hydrochloric acid to dissolve it, add 25ml of water, add 1 drop of 0.025% methyl red ethanol solution, drop the ammonia test solution until the solution is slightly yellow, add 25ml of water and ammonia -10ml of ammonium oxide buffer (ph10.0) and a little chrome black t indicator, titrate with disodium ethylenediaminetetraacetate titrant (0.05mol/l) until the solution turns from purple to pure blue. Each 1ml of ethylenediaminetetraacetate disodium titrant (0.05mol/l) is equivalent to 4.069mg of zno.

MST high purity zinc oxide is your best choice.




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