What is Zinc Oxide CAS 1314-13-2, and what does the listing cover?

Zinc oxide is an inorganic zinc compound supplied as a white to off-white powder. This listing covers industrial, rubber, cosmetic or pharmaceutical, and nano grades, with the main uses including rubber activation, ceramics, coatings, personal care, feed and electronics.

Which zinc oxide grade should be selected for rubber compared with cosmetics?

Rubber grade normally requires a consistent high assay, low heavy-metal content and suitable particle fineness for use as a vulcanization activator. Cosmetic or sunscreen grades require tighter purity and particle-size control, while nano grade is selected when transparency and broad UV coverage are more important.

How does zinc oxide work as a rubber vulcanization activator?

It works with accelerators and fatty acids to form active sulfur-curing intermediates, improving cross-link density, tensile strength, heat resistance and durability in tires, hoses, seals and other rubber compounds.

Why is zinc oxide used in sunscreen formulations?

Zinc oxide is a broad-spectrum mineral UV filter that absorbs and scatters UVA and UVB radiation. Cosmetic and nano grades are preferred for skin compatibility, low whitening or controlled transparency, with the final formulation still subject to the destination market's cosmetic rules.

What other industrial applications require zinc oxide?

Beyond rubber and personal care, it is used in ceramics and glazes, glass, paints and anticorrosive coatings, plastics, adhesives, animal-feed zinc supplementation, varistors, ferrites and other electronics applications.

What specifications and packaging should buyers confirm before ordering?

Confirm zinc oxide assay, lead, cadmium, arsenic and other heavy-metal limits, particle size or specific surface area, bulk density, whiteness, moisture and any grade-specific suitability data. Packaging is normally 25 kg PP bags with PE liner, 500 kg or 1000 kg jumbo bags, or custom packaging on request.

Zinc Oxide CAS 1314-13-2

Zinc Oxide (ZnO), CAS 1314-13-2, is a high-purity inorganic white powder supplied in industrial, rubber, cosmetic/pharma and nano grades for rubber activation, coatings, ceramics, personal care, feed and electronics. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 1314-13-2
Synonyms: Zinc monoxide, Zinc white, Flowers of zinc, C.I. Pigment White 4
Einecs: 215-222-5
Molecular Formula: ZnO
Grade: Industrial Grade (99.7%), Rubber Grade, Cosmetic/Pharma Grade, Nano Grade
Package: 25kg/PP bag with PE liner, 500kg/1000kg Jumbo bags, or customized packaging upon request.

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Product Description

Zinc Oxide, CAS 1314-13-2, also known as zinc monoxide or zinc white, is an inorganic zinc compound; the EC/EINECS number is 215-222-5.

Synonyms: zinc monoxide; zinc white; flowers of zinc; C.I. Pigment White 4.

CAS: 1314-13-2.

Molecular formula: ZnO.

Molecular weight: 81.38 g/mol.

EC number: 215-222-5.

It is a fine white powder with a density of about 5.606 g/cm³ and a melting point of about 1975 °C.

Industrial grade is typically at least 99.7% ZnO and is produced by the indirect process from high-purity zinc ingots.

Rubber grade acts as a vulcanization activator and reinforcing agent, improving thermal conductivity, wear resistance and anti-aging in tires and rubber products.

It is used in coatings and paints as a high-opacity inorganic white pigment with anti-corrosion and UV-stabilizing properties.

Cosmetic and nano grades serve as broad-spectrum physical UV filters in sunscreens and personal-care products.

It is used in ceramics and glass as a flux to lower melting temperature and improve gloss and durability of glazes.

It is used in electronics for varistors, thermistors, ferrites and other semiconducting applications.

It is used as a zinc micronutrient in fertilizers and animal-feed additives.

Confirm ZnO assay, lead, cadmium, arsenic and other heavy-metal limits, particle size or specific surface area, whiteness, moisture and grade-specific suitability.

Store in tightly closed containers in a cool, dry, ventilated area away from strong acids, strong bases and incompatible materials.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required grade, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Zinc Oxide CAS 1314-13-2, and what does the listing cover?

A: Zinc oxide is an inorganic zinc compound supplied as a white to off-white powder. This listing covers industrial, rubber, cosmetic or pharmaceutical, and nano grades, with the main uses including rubber activation, ceramics, coatings, personal care, feed and electronics.
Q:
Which zinc oxide grade should be selected for rubber compared with cosmetics?

A: Rubber grade normally requires a consistent high assay, low heavy-metal content and suitable particle fineness for use as a vulcanization activator. Cosmetic or sunscreen grades require tighter purity and particle-size control, while nano grade is selected when transparency and broad UV coverage are more important.
Q:
How does zinc oxide work as a rubber vulcanization activator?

A: It works with accelerators and fatty acids to form active sulfur-curing intermediates, improving cross-link density, tensile strength, heat resistance and durability in tires, hoses, seals and other rubber compounds.
Q:
Why is zinc oxide used in sunscreen formulations?

A: Zinc oxide is a broad-spectrum mineral UV filter that absorbs and scatters UVA and UVB radiation. Cosmetic and nano grades are preferred for skin compatibility, low whitening or controlled transparency, with the final formulation still subject to the destination market's cosmetic rules.
Q:
What other industrial applications require zinc oxide?

A: Beyond rubber and personal care, it is used in ceramics and glazes, glass, paints and anticorrosive coatings, plastics, adhesives, animal-feed zinc supplementation, varistors, ferrites and other electronics applications.
Q:
What specifications and packaging should buyers confirm before ordering?

A: Confirm zinc oxide assay, lead, cadmium, arsenic and other heavy-metal limits, particle size or specific surface area, bulk density, whiteness, moisture and any grade-specific suitability data. Packaging is normally 25 kg PP bags with PE liner, 500 kg or 1000 kg jumbo bags, or custom packaging on request.

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