2-Butanone peroxide

CAS Number

1338-23-4

Molecular Formula

C8H18O6

Molecular Weight

210.22

EINECS Number

215-661-2

MDL Number

MFCD00042641

BRN Number

1799831

Last Updated

7/28/2025

Appearance

Colorless oily liquid with a strong, pungent odor

Appearance State

Oily liquid. Slightly soluble in water, miscible with many organic solvents.

Color

Colorless

Odor

Pungent odor

Form

Oily Liquid

Melting Point

110

Boiling Point

110 (dec.)

Flash Point

ca. 87.8

Density

1.053 @ 20 °C

Vapor Density

3.9 (air=1)

Vapor Pressure

0.644-73.6 Pa @ 25°C

Refractive Index

1.455 (20°C D)

LogP Value

0.3 @ 25 °C

Merck Index

6173

Solubility

Insoluble in water, soluble in alcohol, ether, benzene.

Water Solubility

0.1-0.5 g/100 mL @ 22°C

Solubility Detail

Insoluble in water, soluble in alcohol, ether, benzene.

Storage Conditions

Store at 2-8°C.

InChI Key

WFUGQJXVXHBTEM-UHFFFAOYSA-N

Signal Word

Danger

Hazard Symbols

O

Risk Codes

R7, R8, R9, R22, R23, R34, R35, R41, R43

UN Number

UN 3105

IARC Classification

第 3 组

WGK Germany

1

RTECS Number

-

Auto-ignition Temperature

249

TSCA Listed

Listed (Active)

Packing Group

II

Customs Code

29096000

Occupational Exposure Band (OEB)

Not Specified

Occupational Exposure Limit (OEL)

ACGIH C: 0.2 ppm

Immediately Dangerous to Life or Health (IDLH)

75 ppm