Skip to Content
Merck
CN
All Photos(1)

Key Documents

Safety Information

441694

Sigma-Aldrich

2,2-Bis(tert-butylperoxy)butane solution

50 wt. % in mineral oil

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C2H5C[OOC(CH3)3]2CH3
CAS Number:
Molecular Weight:
234.33
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:

composition

active oxygen content, 6.8 wt. %

t1/2

10 hr(92 °C)

concentration

50 wt. % in mineral oil

refractive index

n20/D 1.445

mp

≥80 °C (SADT)

density

0.88 g/mL at 25 °C

SMILES string

CCC(C)(OOC(C)(C)C)OOC(C)(C)C

Application

Free radical polymerization initiator.
Initiator for polymerization and copolymerization of styrene, ethylene and acrylics in solution, suspension and bulk polymerizations.

Signal Word

Danger

Hazard Classifications

Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 3 - Org. Perox. C - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.2 - Organic peroxides and self-reacting hazardous materials

WGK

WGK 2

Flash Point(F)

118.4 °F - closed cup

Flash Point(C)

48 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service