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Description and features
Enox DTBP (Di-tert-butyl peroxide) is a transparant liquid which has C8H18O2 as chemical formula.  This dialkyl peroxide is used as initiator for the production of Low Density Polyethylene (LDPE). Further it finds its application in the polymerization and copolymerization of styrene, olefins and acrylic resins and as modification agent of polypropylene degradation.

Di-tert-butyl peroxide is also known as DTBP, peroxide bis(1,1-dimethylethyl) and tert-Butyl peroxide.

Product information

CAS number110-05-4
EC number 203-733-6
HS code2909 60 00

Molecular and structural information

Molecular formulaC8H18O2
Molecular weight146.23 g/mol
Smiles notationCC(C)(C)OOC(C)(C)C
Structural formula:110-05-4


Appearancelight yellow transparent liquid
Assay≥98.00 %
Density0.793 - 0.803 (d20/4)
Refractivity1.385 - 1.392 (n20/D)
Fe≤0.0005 %
TBHP≤0.60 %
Active oxygen content≥10.72 %
Conductivity≥1000 pS/m

Half-life data

Activation energy35.1 kcal/mole
10 hr. half-life temp126 °C
1 hr. half-life temp149 °C
1 min. half-life temp193 °C

Physicochemical information

Density0.789 g/cm3 ± 0.06 @ 20 °C
Flash point6 °C @ 113 mBar
Melting point-18 °C
Partition coefficient (log Pow)1.51
Solubility in waterModerately soluble (100 mg/l)
Vapour pressure29 mBar @ 25 °C

Available packaging: 20 KG PE drum & 160 KG steel drum.
Special packaging is available on request

Shipment Info
Europe and United States: Provided Enox DTBP is on stock in our local warehouses our lead time is about one week if delivered in 25 KG drums.
Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Store Di-tert-butyl peroxide in a cool, dry and well-ventilated area and in line with legal requirements.
Keep Enox DTBP away from heat sources and oxidizing agents.

This substance (CAS: 110-05-4) has been registered (FULL) under REACH (EC) 1907/2006.

A Material Safety Data Sheets (MSDS) is available for Enox DTBP and all other products supplied by Vesta Intracon BV. An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Di-tert-butyl peroxide: Disclaimer. This information is supplied solely for informational purposes and Vesta Intracon bv makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice.