1,4-Benzoquinone dioxime Property

Melting point:

243 °C (dec.)(lit.)

Boiling point:

253.51°C (rough estimate)

Density 

1,49 g/cm³

vapor pressure 

0Pa at 25℃

refractive index 

1.5100 (estimate)

Flash point:

°C

storage temp. 

Sealed in dry,Room Temperature

solubility 

dioxane: soluble0.1g/10 mL, clear

pka

9.12±0.20(Predicted)

form 

Solid

color 

White

Water Solubility 

<0.01 g/100 mL at 22.5 ºC

BRN 

2043234

Stability:

Stable. Incompatible with strong acids, strong oxidizing agents.

InChIKey

LNHURPJLTHSVMU-CGXWXWIYSA-N

LogP

0.3 at 35℃

CAS DataBase Reference

105-11-3(CAS DataBase Reference)

NIST Chemistry Reference

2,5-Cyclohexadiene-1,4-dione, dioxime(105-11-3)

IARC

3 (Vol. 29, Sup 7, 71) 1999

EPA Substance Registry System

p-Quinone dioxime (105-11-3)

Safety

Hazard Codes 

Xn

Risk Statements 

22-40

Safety Statements 

45-36/37-60

WGK Germany 

3

RTECS 

DK4900000

TSCA 

Yes

HS Code 

29280000

Hazardous Substances Data

105-11-3(Hazardous Substances Data)

Toxicity

LD50 oral in rat: 464mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H341Suspected of causing genetic defects

H351Suspected of causing cancer

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P308+P313IF exposed or concerned: Get medical advice/attention.

P405Store locked up.

P501Dispose of contents/container to..…

1,4-Benzoquinone dioxime Chemical Properties,Usage,Production

Uses

A rubber accelerator.

Chemical Properties

pale yellow to brown crystals or powder

Uses

p-Benzoquinone dioxime was used in oxidative regeneration of a variety of carbonyl compounds from their oximes using superoxide ion generated in situ by the phase transfer reaction between potassium superoxide and 18-crown-6.

Definition

ChEBI: Para-Benzoquinone dioxime is a quinone imine.

General Description

Pale yellow crystals or brown powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

1,4-Benzoquinone dioxime is incompatible with strong oxidizers and strong acids.

Fire Hazard

Flash point data for 1,4-Benzoquinone dioxime are not available; however, 1,4-Benzoquinone dioxime is probably combustible.

Flammability and Explosibility

Flammable

Biochem/physiol Actions

p-Benzoquinone dioxime is sex-specific rat carcinogen inducing tumours of the urinary bladder in female rats and is a direct-acting mutagen in Salmonella typhimurium TA982.

Safety Profile

Moderately toxic by ingestion. Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx,.