Bis(1,1-dimethylpropyl) peroxide

CAS Number

10508-09-5

Molecular Formula

C10H22O2

Molecular Weight

174.28

EINECS Number

234-072-3

MDL Number

MFCD00014395

BRN Number

1888461

Last Updated

8/7/2025

Appearance

Colorless clear liquid

Appearance State

Liquid. Insoluble in water, soluble in most organic solvents.

Color

Colorless

Odor

Faint characteristic odor

Form

Liquid

Melting Point

-55

Boiling Point

146 (lit.)

Flash Point

46 (c.c.)

Density

0.818 @ 25 °C

Vapor Density

ca. 5.8 (air=1)

Vapor Pressure

14.7 hPa @ 25°C

Refractive Index

1.409 (20°C D lit.)

LogP Value

4.7 @ 25 °C

Merck Index

Not Listed

Solubility

Sparingly soluble in water, soluble in organic solvents like alcohols, esters, hydrocarbons.

Water Solubility

13.83 mg/L @ 20°C

Solubility Detail

Solubility in water 13.83 mg/L (20°C), miscible with alcohols, esters, ethers.

Storage Conditions

Keep refrigerated (recommended storage at 0–4°C), protect from light and heat.

InChI Key

JJRDRFZYKKFYMO-UHFFFAOYSA-N

Signal Word

Warning

Hazard Symbols

O

Risk Codes

R7, R8, R22, R38

UN Number

UN 3107

IARC Classification

Not Classified

WGK Germany

2

RTECS Number

SD8300000

Auto-ignition Temperature

> 200 (est.)

TSCA Listed

Listed (Active)

Packing Group

II

Customs Code

29096000

Occupational Exposure Band (OEB)

Not Specified

Occupational Exposure Limit (OEL)

Not Specified

Immediately Dangerous to Life or Health (IDLH)

Not Specified