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Description and features
Enox YNE-85MO, 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3, is a yellow oily liquid which has C16H30O4 as chemical formula. This dialkyl peroxide is used as initiator for the (co)polymerization of styrene, besides it is used to crosslink polyethylene, natural rubbers and synthetic rubbers.

2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3 is also known as 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne and 2,5-Di(tert-butylperoxy)-2,5-dimethyl-3-hexyne.

Shipment Info
Europe: Provided Enox YNE-85MO is on stock in our local warehouses our lead time is about one week if delivered in 25 KG PE drums.

Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

Product identification
CAS number1068-27-5
EC number 213-944-5
HS code2909 60 00
EC name
Di-tert-butyl 1,1,4,4-tetramethylbut-2-yn-1,4-ylene diperoxide
IUPAC name2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne
Appearancelight yellow transparent oily liquid
Active oxygen content9.38 - 9.61 %
Assay84.00 - 86.00 %
Color 100 hazen max
Hydroperoxide (as YNE)≤2.00 %

Enox YNE-85MO is used as crosslinking agent for HDPE and LLDPE, no scorching occurs at temperatures below 150 ºC. It can also be applied to crosslink both natural and synthetic rubbers. Further it can be used for the (co)polymerization of styrene in the temperature range of of 130-185 ºC, during the polymerization the temperature increases in steps.

Available packaging: 25 KG PE drums.
Special packaging is available on request.

Store 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3 in a cool, dry and well-ventilated area and in line with legal requirements. Keep Enox YNE-85MO away from heat sources, avoid contact with acids, alkalines, heavy metal compounds and reducing agents. The Self Accelerating Decomposition Temperature (SADT) in original packaging is 80ºC.

A Material Safety Data Sheets (MSDS) is available for Enox YNE-85MO and all other products supplied by Vesta Chemicals 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.

This substance (CAS: 1068-27-5) has been pre-registered under REACH (EC) 1907/2006. Full registration is expected to be completed during August 2018.

Molecular and structural information
Molecular formulaC16H30O4
Molecular weight286.40 g/mol
Smiles notationO(OC(C)(C)C)C(C#CC(OOC(C)(C)C)(C)C)(C)C
Structural formula
Physicochemical information
Boiling point: Decomposes before boiling.
Bulk density0.883 g/cm3 @ 20 ºC
Flash point69 ºC @ 1013 mBar
Log Pow6.71 @ 25 ºC
Solubility in water2.2 mg/l @ 20 ºC
Vapor pressure0.014 Pa @ 20 ºC
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexyne-3 | CAS: 1068-27-5 | 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.