Zinc Oxide

Zinc Oxide

CAS No.: 1314-13-2
Molecular Formula: OZn
Molecular Weight: 81.39
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product description

Pure zinc oxide is a white, odorless powder free of mechanical impurities. It is insoluble in water but not in organic solvents such as ethanol and ether. It can be dissolved in dilute acids to form zinc salts and also in strong bases to form zincates, demonstrating the characteristics of amphoteric oxides.


Chemical Properties

PropertyValue

Melting point

1975 °C

Boiling point

1949.9°C (estimate)

Density

5.6

Bulk density

200-700kg/m3

Refractive index

2.008~2.029

Fp

27℃

Storage temp.

Store at +5°C to +30°C.

Solubility

0.0016g/l insoluble

Form

Nanopowder

Color

White to pale yellow

Specific Gravity

5.61

PH

7 (50g/l, H2O, 20℃)(slurry)

Odor

wh. to gray powd. or crystals, odorless, bitter taste

Water Solubility

1.6 mg/L (29 ºC)

Crystal Structure

ZnO type

Crystal system

Six sides

Merck

14,10147

Space group

P63mc

Lattice constant

a/nmb/ nmc/nmα/ oβ/oγ/oV/ nm30.324950.324950.5206990901200.0476

Dielectric constant

40.0(20℃)

Exposure limits

ACGIH: TWA 2 mg/m3; STEL 10 mg/m3OSHA: TWA 5 mg/m3; TWA 15 mg/m3NIOSH: IDLH 500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3; Ceiling 15 mg/m3

Stability:

Stable. Incompatible with magnesium, strong acids.

InChIKey

XLOMVQKBTHCTTD-UHFFFAOYSA-N

CAS DataBase Reference

1314-13-2(CAS DataBase Reference)

NIST Chemistry Reference

Zinc oxide(1314-13-2)

EPA Substance Registry System

Zinc oxide (1314-13-2)


Safety Information

PropertyValue
Hazard symbolsN, Xn, F
Hazard class codes50/53-20-43-36/38-20/21/22-67-66-10-11
Safety descriptions60-61-7/9-36/37-26-16
Occupational exposure classB
Occupational exposure limitTWA: 5 mg/m³, Ceiling: 15 mg/m³
UN dangerous goods numberUN 3077 9/PG 3
WGK Germany2
RTECS numberZH4810000
TSCATSCA listed
Hazard class9
Packing groupIII
HS code28170000
Storage class11 - Combustible solids
Hazard class (category)Hazardous to the aquatic environment — acute hazard, Category 1
Hazardous to the aquatic environment — long-term hazard, Category 1
Hazardous substances data1314-13-2 (Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: >5000 mg/kg
Immediately dangerous to life or health concentration500 mg/m³


Product Usage

Zinc Oxide is a powerful and versatile inorganic compound that holds a central position in numerous industrial sectors. In the rubber industry, it serves as the most critical vulcanization activator, significantly enhancing the abrasion resistance, tear strength, and anti-aging properties of rubber products, with nearly half of global production used in tire manufacturing. In cosmetics and personal care, its exceptional UV-shielding capability makes it a key ingredient in physical sunscreens, skin ointments, and anti-irritant products. Within the ceramics and glass industries, zinc oxide acts as a flux to reduce melting temperatures and improve luster. Additionally, it provides essential trace zinc in animal feed, acts as an anti-corrosive and antimicrobial agent in coatings, and serves as a core material for varistors in the electronics field.

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FAQ

Q1:Does it support customized products?

A1:Yes, it does. Formulations can be adjusted and customized production can be carried out according to customer's industry needs and performance parameters.


Q2:Can samples be provided?

A2:We support free sample delivery and testing services to meet customers' early testing needs.


Q3:Is the product quality stable? 

A3:With full-process quality inspection and control, there are minimal batch differences, and the purity and stability strictly meet the standards.


Q4:What is the shipping cycle?

A4:For regular inventory, we offer quick delivery. For customized orders, we arrange production according to demand and ensure timely delivery.

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