Zinc Oxide CAS 1314-13-2

What Zinc Oxide Is

Zinc oxide is a stable amphoteric oxide sold as a white to pale yellow, odorless powder that is insoluble in water. One CAS number covers a wide family of grades, and process, particle size and purity decide where each lot is used. UATChem supplies indirect process material at 99.7% for general and high-purity work, high surface area active grade for rubber, nano powder around 20 to 50 nm for UV and electronic use, and controlled heavy metal lots for feed and cosmetics, with stearic acid or silane coating available for better dispersion. The right grade is matched to the industry and formulation rather than bought as one generic product.

Rubber, Ceramics, Cosmetics and More

• Rubber. The largest outlet, used as a vulcanization activator that forms a zinc soap with stearic acid to boost crosslinking, heat conduction, abrasion resistance and aging resistance in tires, footwear and hoses.
• Ceramics, glass and frit. A flux in glazes and frits that lowers melting temperature and improves gloss and elasticity, plus use in ceramic pigments.
• Cosmetics and pharmaceuticals. A physical UV reflector in sun care and a mild astringent in topical preparations, using high-purity or coated grades.
• Coatings. Serves as the zinc white pigment and supports rust-inhibiting and mildew-resistant paints.
• Feed, agriculture and electronics. A zinc source in animal feed and fertilizers, and a functional powder in varistors, semiconductors and photocatalytic parts, mainly at nano grade.

Typical Specifications

The table gives a typical indirect 99.7% lot; active, nano, feed and cosmetic grades and coated forms carry their own specifications and are confirmed per order.

Packaging, Documents and Ordering

• Packed in 25 kg woven bags or fiber drums with PE liner and in 1000 kg FIBC bags; keep material dry and sealed to protect fine and nano lots from moisture and caking, and the product ships as ordinary, non-hazardous cargo by sea or air.
• Every lot carries a COA showing ZnO content, particle size or surface area, whiteness and heavy metals, together with TDS and SDS; compliance documents for feed or cosmetic grades can be discussed at inquiry, and samples are supported.
• In rubber formulations zinc oxide is almost always run with Stearic Acid CAS 57-11-4 to activate the cure system, and the related zinc compound Basic Zinc Carbonate CAS 5263-02-5 is available as a precursor or companion material. For a quote, send the industry, grade, particle size or coating, quantity, packing and destination port.

FAQ

Q: Which zinc oxide grade fits rubber compounding?

A: Indirect 99.7% is the standard activator; active grade doses lower for the same cure, and both run with stearic acid.

Q: Do you supply nano and cosmetic grade zinc oxide?

A: Yes, nano powder around 20 to 50 nm and controlled heavy metal, optionally coated, for sunscreen and UV dispersion use.

Q: How is zinc oxide packed and is it hazardous?

A: It ships as non-hazardous in 25 kg woven bags or fiber drums and 1000 kg FIBC lots, kept dry and sealed, with COA and SDS.