Zinc peroxide Property

Melting point:

212 °C (dec.) (lit.)

Density 

1.57 g/mL at 25 °C (lit.)

solubility 

insoluble in H2O; reacts with acid solutions,ethanol, acetone

form 

Powder

Specific Gravity

1.571

color 

yellow-white

Water Solubility 

Insoluble in water.

Merck 

14,10149

Exposure limits

ACGIH: TWA 2 mg/m3; STEL 10 mg/m3
OSHA: TWA 5 mg/m3; TWA 15 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3; Ceiling 15 mg/m3

LogP

-0.425 (est)

CAS DataBase Reference

1314-22-3(CAS DataBase Reference)

EPA Substance Registry System

Zinc peroxide (Zn(O2)) (1314-22-3)

Safety

Hazard Codes 

O,N,Xi

Risk Statements 

9-50/53-8-36/38

Safety Statements 

24/25-27-17-61-60-26

RIDADR 

UN 1516 5.1/PG 2

WGK Germany 

3

TSCA 

Yes

HazardClass 

5.1

PackingGroup 

II

Hazardous Substances Data

1314-22-3(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H271May cause fire or explosion; strong oxidiser

H315Causes skin irritation

H319Causes serious eye irritation

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P220Keep/Store away from clothing/…/combustible materials.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Zinc peroxide Chemical Properties,Usage,Production

Chemical Properties

White powder containing 45–60% ZnO2, balance ZnO. Decomposes rapidly above 150C. Decomposes in acids, alcohol, acetone; insoluble in water but decomposed by it.

Chemical Properties

Zinc Peroxide, solid and generally similar in its properties to magnesium peroxide. The commercial product is a pale yellow powder containing about 55% ZnO2 and 9% active oxygen. It is stable in dry air but loses its oxygen in moist air and on heating. It is insoluble in water but dissolves in dilute acid, liberating hydrogen peroxide.

Uses

Zinc peroxide is used as an accelerator in rubber-compounding, as a curing agent for synthetic elastomers, and as a deodorant for wounds and skin diseases.

Uses

Zinc peroxide is used as curing agent, rubber accelerator. has been applied in a variety of settings, from medicine to aesthetics.

Uses

Accelerator in rubber compounding; curing agent for synthetic elastomers. Deodorant for wounds and skin diseases.

General Description

A white powder.

Air & Water Reactions

Slowly decomposed by water.

Reactivity Profile

Zinc peroxide dissolves in dilute acid, liberating hydrogen peroxide [Merck 11th ed. 1989]. Noncombustible but accelerates the burning of combustible material. If the combustible material is finely divided, the mixture may be explosive. Mixtures with combustible material can sometimes be ignited by friction or contact with moisture.The hydrated material (of indefinite composition) explodes at 212°C. Mixtures with aluminum or zinc powder burn brilliantly [Mellor 1940. v. 4, 530].

Health Hazard

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Fire may produce irritating and/or toxic gases. Toxic fumes or dust may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Runoff from fire control or dilution water may cause pollution.

Fire Hazard

May explode from friction, heat or contamination. These substances will accelerate burning when involved in a fire. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react explosively with hydrocarbons (fuels). Containers may explode when heated. Runoff may create fire or explosion hazard.

Safety Profile

Systemic toxicity is similar to zinc oxide. Flammable when SYN: ZINC SUPEROXIDE 212.. Can react.iolently with A. and Zn. Very dangerous, wdl react with water or steam to produce heat. Vigorous reaction with reducing materials. When heated to decomposition it emits toxic fumes of ZnO. See also PEROXIDES and ZINC COMPOUNDS.