Zinc Oxide For White Pigment Manufacturers
MST® Zinc Oxide For White Pigment Manufacturers is also known as zinc white. Good transparency, good stability, not easy to turn yellow after a long time, and it also inhibits the growth of fungi and prevents the powder coating of the pigment coating.The following is the introduction of high quality MST® Zinc Oxide For White Pigment Manufacturers, hoping to help you better understand MST® Zinc Oxide For White Pigment Manufacturers. Welcome new and old customers to continue to cooperate with us to create a better future!
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Product Description
MST® Zinc Oxide For White Pigment Manufacturers
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MST® Zinc oxide for white pigment is also known as zinc white. Good transparency, good stability, not easy to turn yellow after a long time, and it also inhibits the growth of fungi and prevents the powder coating of the pigment coating.
Product name: Zinc oxide
CAS NO: 1314-13-2
EINECS NO: 215-222-5
Molecular formula: ZnO
Melting point: 1975℃
Density: 5.606g/cm3
Molecular weight: 81.38
Appearance: White powder or crystal
Purity: 0.99
H.S CODE: 2817001000
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Standard:《GB/T3185-2016》 |
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Item |
Type1 |
Type2 |
Type3 |
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Zinc oxide（Zn0 calculating as dry materia)% ≥ |
99.7 |
99.7 |
99.5 |
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Metal content（as Zn)% ≤ |
none |
none |
0.008 |
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Insoluble Matter in Hci % ≤ |
0.006 |
0.008 |
0.03 |
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Loss on ignition % ≤ |
0.2 |
0.2 |
0.25 |
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Residue on sieve (45um)% ≤ |
0.1 |
0.15 |
0.2 |
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Water soluble matter % ≤ |
0.1 |
0.1 |
0.15 |
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Volatile matter in 105℃ % ≤ |
0.3 |
0.4 |
0.5 |
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Lead(pb）% ≤ |
0.008 |
0.05 |
0.1 |
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Copper(Cu)% ≤ |
0.0002 |
0.0004 |
0.0007 |
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Manganese（ Mn）% |
0.0001 |
0.0001 |
0.0003 |
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Cadmium (Cd）% |
0.002 |
0.005 |
0.01 |
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Iron (Fe）% |
0.005 |
0.01 |
— |
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Specific surface area（m2/g) |
agree |
— |
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Oil absorption */g/100g |
agree |
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Color* (compared with standard sample) |
agree |
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Decoloration power*(compared with standard sample)≥ |
agree |
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Types and characteristics of white pigments:
1. Lead white is very stable. The color of the oil painting dries quickly, and the color layer is firm after drying. It is a good white in the traditional European oil painting, but the lead white has a strong toxicity.
2. Zinc oxide for white pigment is lighter than lead white and whiter than lead white. It will not become yellow and stable after a long time. The color layer is stronger after drying, and it also inhibits the growth of fungi and prevents the powder coating of the pigment coating. Disadvantages: low coloring power, slow drying speed, and high oil consumption. Zinc oxide for white pigment will become lemon yellow when heated, and will return to white when cooled.
3. Titanium white is not affected by climatic conditions, has a strong covering power, and is a pigment produced in modern times. The color of pure titanium white dries quickly, and it easily turns yellow after drying.
4. Zinc-titanium white not only maintains the whiteness, fastness and covering strength of titanium white, but also has the advantages of zinc white to prevent powdering and mold. It has the advantages of non-toxicity and has become the most commonly used white pigment in oil painting.
Therefore, the most commonly used white pigment is zinc white, titanium white or zinc titanium white. Therefore, the application of MST® zinc oxide for white pigment is very important.
