Mineral Fillers & Pigments Available — Bulk Only

Zinc Oxide (Zinc White)

ZnO
CAS 1314-13-2 · Formula OZn · MW 81.4 g/mol

The workhorse zinc compound behind rubber vulcanization, coatings, and ceramics. Roughly half to sixty percent of consumption goes to the rubber industry as a vulcanization activator.

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UN Number
UN 3077
Hazard Class
Class 9
HS Code
2817.00
At a Glance
Material Family
Mineral Fillers & Pigments
Record Type
Pure compound
Primary Role
Biocidal Action · Thickening / Rheology
Solubility
0.0004 % at 18 °C
Functional Roles
ZINC OXIDE
ANTIMICROBIALBULKINGCOLORANTLIGHT STABILIZERORAL CARESKIN PROTECTINGUV ABSORBERUV FILTER
Applications & Use Cases
  • Rubber: Vulcanization activator (largest end use).
  • Coatings: White pigment and anticorrosive additive.
  • Ceramics and glass: Flux and opacifier in glazes and frits.
  • Electronics: Active material in varistors and surge arresters.
  • Agriculture and feed: Zinc micronutrient source.
Physical Properties
Melting Point
1975 °C
Density
5.61
Solubility
0.0004 % at 18 °C
Vapor Pressure
0 mmHg (approx)
pH
pH = 6.95 (American process zinc oxide); 7.37 (French process)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 9 placard
UN / DOT NumberUN 3077
Hazard Class / DivisionClass 9
Proper Shipping NameEnvironmentally hazardous substance, solid, n.o.s.

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2817 . 00
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.17
Internationally harmonized (WCO HS)
Subheading 2817.00
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
1314-13-2
Molecular Formula
OZn
Molecular Weight
81.4 g/mol
IUPAC Name
zinc oxygen(2-)
INCI Name
ZINC OXIDE
PubChem CID
InChI Key
RNWHGQJWIACOKP-UHFFFAOYSA-N
Synonyms & Trade Names
Zincum Oxydatum Zinc paste Zinci Oxydum Zinc (as oxide) Zinc oxide emulsion Zinc (as zinc oxide) CI 77947 C.I. 77947 Lassar's Paste Oxide, Zinc Paste, Lassar's aloevella calahist dabur diaper multipurpose bareMinerals
Full Description

Zinc oxide (CAS 1314-13-2), an inorganic ZnO powder. Roughly half to sixty percent of consumption goes to the rubber industry as a vulcanization activator. It also functions as a white pigment and anticorrosive in coatings, a flux and opacifier in ceramics and glass, the active material in electronic varistors, and a zinc micronutrient in feed and agriculture.

Frequently Asked Questions

What is zinc oxide used for?

Roughly half to sixty percent of zinc oxide (CAS 1314-13-2) consumption is in rubber as a vulcanization activator. It also serves as a white pigment and anticorrosive in coatings, a flux and opacifier in ceramics and glass, the active material in electronic varistors, and a zinc micronutrient in feed and agriculture.

What is the chemical formula for zinc oxide?

Zinc oxide is ZnO (CAS 1314-13-2), an inorganic white powder. It is the most common industrial zinc compound by volume across rubber, coatings, and ceramics.

Is zinc oxide water soluble?

No. Zinc oxide is essentially insoluble in water but dissolves in acids and strong bases. Its insolubility suits its use as a filler, pigment, and rubber activator in solid systems.

Is zinc oxide the same as zinc carbonate?

No. Zinc oxide is ZnO; zinc carbonate is ZnCO3. They are different compounds with different end uses, though both are inorganic zinc salts used as fillers, pigments, and feed micronutrients.

How does zinc oxide ship and what does bulk cost?

Crude zinc oxide carries UN 3077 for transport classification; the SDS specifies handling. RawSource supplies it as a bulk powder with CoA available, and pricing depends on grade and volume, so request a current bulk quote.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.