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tert-Butyl peroxy-2-ethylhexanoate

CAS No.
3006-82-4
Chemical Name:
tert-Butyl peroxy-2-ethylhexanoate
Synonyms
tert-Butyl peroctoate;tert-butyl 2-ethylperoxyhexanoate;Trigonox 21;Initiating agent OT;t-butylperoxyoctoate;tert-Butyl peroxy-2-;tert-Butyl peroxyoctoate;Lipid peroxide tert-butyl;butyl peroxy-2-ethylhexanoate;T-BUTYLPEROXY-2-ETHYLHEXANOATE
CBNumber:
CB9850565
Molecular Formula:
C12H24O3
Molecular Weight:
216.32
MDL Number:
MFCD00072690
MOL File:
3006-82-4.mol
Last updated:2026-05-28 05:15:39
Product description Number Pack Size Price
TERT-BUTYL PEROXY-2-ETHYLHEXANOATE 98.00% CHM0290739 5MG $500.95
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tert-Butyl peroxy-2-ethylhexanoate Properties

Melting point -30°C
Boiling point 248.9±23.0 °C(Predicted)
Density 0.89
vapor pressure 2Pa at 20℃
Flash point 85°C
pka -4.8[at 20 ℃]
Water Solubility 46.3mg/L at 20℃
InChI InChI=1S/C12H24O3/c1-6-8-9-10(7-2)11(13)14-15-12(3,4)5/h10H,6-9H2,1-5H3
InChIKey WYKYCHHWIJXDAO-UHFFFAOYSA-N
SMILES C(OOC(C)(C)C)(=O)C(CC)CCCC
LogP 4.79 at 20℃
CAS DataBase Reference 3006-82-4(CAS DataBase Reference)
FDA UNII KGA9W7ZS5I
EPA Substance Registry System Hexaneperoxoic acid, 2-ethyl-, 1,1-dimethylethyl ester (3006-82-4)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Health Hazard (GHS08)Environment (GHS09)
GHS02,GHS08,GHS09
Signal word  Danger
Hazard statements  H242-H317-H360-H400-H411
Precautionary statements  P210-P220-P234-P280-P370+P378-P403+P235-P411-P420-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P273-P391-P501
RIDADR  UN 2143
TSCA  TSCA listed
REACH Registrations Active

tert-Butyl peroxy-2-ethylhexanoate price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation CHM0290739 TERT-BUTYL PEROXY-2-ETHYLHEXANOATE 98.00% 3006-82-4 5MG $500.95 2021-12-16 Buy
Product number Packaging Price Buy
CHM0290739 5MG $500.95 Buy

tert-Butyl peroxy-2-ethylhexanoate Chemical Properties,Uses,Production

Chemical Properties

Tert-Butyl peroxy-2-ethylhexanoate is a colorless liquid. It has a half-life in benzene of 10.0 h at 162°F (72°C). It is used as a medium temperature initiator for the polymerization of vinyl monomers and the curing of styrene-unsaturated polyester resins. It is regarded as an intermediate fire hazard; however, it has low impact sensitivity .

Uses

Tert-Butyl peroxy-2-ethylhexanoate (TBPO), also known as Trigonox 21S or PEROXAN PO-30 , is an initiator for (co)polymerization of ethylene, styrene, acrylonitrile and (meth)acrylates. Curing agent for unsaturated polyester resins. It is used for high pressure polymerization of ethylene in both autoclave and tubular processes, usually in combination with other peroxides of varying degrees of activity.

General Description

This peroxide is particularly sensitive to temperature rises and contamination. Above a given "Control Temperature" they decompose violently. tert-Butyl peroxy-2-ethylhexanoate is generally stored or transported with inert solids to mitigate the explosion hazard.

Reactivity Profile

Tert-Butyl peroxy-2-ethylhexanoate explodes with great violence when rapidly heated to a critical temperature; pure form is shock sensitive and detonable [Bretherick 1979 p. 602]. Decomposes violently or explosively at temperatures 0-10°C owing to self- accelerating exothermic decomposition; Several explosions were due to shock, heat or friction; amines and certain metals can cause accelerated decomposition [Bretherick 1979 p. 156]. Danger of explosion when dry

Flammability and Explosibility

Not classified

Safety Profile

Based on available data,tert-Butyl peroxy-2-ethylhexanoate is considered to be very toxictowards aquatic organisms and is classified according to EC 1272/2008 regulation. Several tests have shown that tert-Butyl peroxy-2-ethylhexanoate is degradable by hydrolysisand also by biotic degradation in water: this substance is inherently biodegradable.As aconsequence, tert-Butyl peroxy-2-ethylhexanoate is neither PBT nor vPvB.

Synthesis

The synthesis method of commercial peroxyester tert-butyl peroxy-2-ethylhexanoate (TBPEH) is  shown below:
tert-Butyl peroxy-2-ethylhexanoate
The first reaction step is the deprotonation of tert-butyl hydroperoxide (TBHP) with the base (MOH) in the aqueous phase, a homogeneous and slightly exothermic reaction. The base is usually in excess with respect to TBHP to ensure a high enough pH when the reaction has almost completed. Thanks to the TBHP acidity, the equilibrium is shifted to the right and most of the TBHP present in the aqueous phase is deprotonated. The alkali salt of TBHP (MTBP) further reacts with 2-ethylhexanoyl chloride (EHCl) to form TBPEH and a chloride salt (MCl). The reaction is biphasic with MTBP, MOH, MCl and some TBHP in the aqueous phase and EHCl, TBPEH and most of TBHP in the organic phase. The reaction between EHCl and TBHP is very slow and can be neglected[1].

Toxics Screening Level

The ITSL for t-butylperoxy-2-ethylhexanoate has been changed from 0.04 μg/m3 to 0.1 μg/m3 based on an annual averaging time.

References

[1] Magosso, M. M. van den Berg and J. van der Schaaf. “Kinetic study and modeling of the Schotten–Baumann synthesis of peroxyesters using phase-transfer catalysts in a capillary microreactor.” Reaction Chemistry & Engineering 9 (2021): 1574–1590.

75-91-2
760-67-8
3006-82-4
Synthesis of tert-Butyl peroxy-2-ethylhexanoate from tert-Butyl hydroperoxide and 2-Ethylhexanoyl chloride

tert-Butyl peroxy-2-ethylhexanoate Preparation Products And Raw materials

Global( 113)Suppliers
Supplier Tel Email Country ProdList Advantage
Taizhou Suze Chemical Materials Co.,Ltd.
+86-0523-86392777 +86-19825580222 nick.miao@suzechem.com China 23 58
Sinomore New Material Company Limited
+86-13656229759; +8613656229759 sales@sinomorechem.com China 26 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365 mina@chuanghaibio.com China 18126 58
Henan Tianfu Chemical Co.,Ltd.
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Shenzhen Nexconn Pharmatechs Ltd
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career henan chemical co
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SIMAGCHEM CORP
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Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
ANHUI WITOP BIOTECH CO., LTD
+8615255079626 eric@witopchemical.com China 23541 58

View Lastest Price from tert-Butyl peroxy-2-ethylhexanoate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Tert-butyl peroxy 2-ethylhexanoate pictures 2026-03-05 Tert-butyl peroxy 2-ethylhexanoate
3006-82-4
500kg 95% 200tons Sinomore New Material Company Limited
Tert-amyl Peroxy-2-ethylhexanoate pictures 2026-03-05 Tert-amyl Peroxy-2-ethylhexanoate
3006-82-4
500kg 99% 200tons Sinomore New Material Company Limited
tert-Butyl peroxy-2-ethylhexanoate pictures 2025-03-11 tert-Butyl peroxy-2-ethylhexanoate
3006-82-4
1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
TERT-BUTYL PEROXY-2-ETHYLHEXANOATE 2-ethyl-hexaneperoxoic acid 1,1-dimethylethyl ester Tert-Butylperoxy-2-Ethylhecanoate TERTIARY BUTYL PEROXY 2-ETHYL CAPROIC ACID ESTER tert-Butyl peroxyoctoate Hexaneperoxoic acid, 2-ethyl-, 1,1-dimethylethyl ester butyl peroxy-2-ethylhexanoate Initiating agent OT tert-butyl peroxy-2-ethyl-hexanoate,[with 2,2di-(tert-butyl peroxy)-butane] tert.-Butyl-2-ethylperoxyhexanoat T-BUTYLPEROXY-2-ETHYLHEXANOATE tert-Butyl 2-ethylhexaneperoxoate tert-Butyl peroxy-2-ethylhexanoate, not more than 50%, with phlegmatizer (UN 2888) tert-butyl peroxy-2-ethylhexanoate (more than 32% but not more than 52%, and diluent type B not less than 48%) tert-butyl peroxy-2-ethylhexanoate (not more than 32%, and diluent type B not less than 68%) tert-butyl peroxy-2-ethylhexanoate (not more than 52%, and inert solid not less than 48%) (2-Ethylhexanoyl)(tert-butyl) peroxide 2-Ethylhexaneperoxoic acid 1,1-dimethylethyl 2-Ethylhexaneperoxoic acid tert-butyl ester Trigonox 21 t-butylperoxyoctoate tert-Butyl peroxy-2- Lipid peroxide tert-butyl 2-Methyl-2-propanyl 2-ethylhexaneperoxoate tert-Butyl peroxy-2-ethylhexanoate, 98%+ tert-butyl 2-ethylperoxyhexanoate tert-Butyl peroctoate 3006-82-4 C4H9CHC2H5COOOCCH33