CAS 10508-09-5 Di-tert-amyl peroxide (HCID 25320)

Names & identifiers

Preferred name: Di-tert-amyl peroxide
IUPAC: 2-methyl-2-(2-methylbutan-2-ylperoxy)butane
English name: Di-tert-amyl peroxide
Molecular formula: C10H22O2
Molecular weight: 174.28

Names & synonyms

Di-tert-amyl peroxide10508-09-5Di-tert-pentyl peroxidePeroxide, bis(1,1-dimethylpropyl)PEROXIDE, DI-tert-PENTYL-T4HBL5JPXKEINECS 234-042-8BRN 1738675EC 234-042-8RefChem:586091234-042-8Bis(1,1-dimethylpropyl) peroxide

Show more names

Luperox DTATrigonox 201DIAMYLPEROXIDEtert-Pentyl peroxidedi-tert-pentyl-peroxidBis(tert-amyl) peroxide

2-methyl-2-(2-methylbutan-2-ylperoxy)butanetert-amyl peroxideUNII-T4HBL5JPXKdi-t-amyl peroxidedi-tert-amylperoxideDi-tert.-pentylperoxiddi-tert.-amyl peroxidedi-tertiary-amyl peroxide

Database identifiers

CAS: 10508-09-5
PubChem CID: 25320
DTXSID: DTXSID9051533
UNII: T4HBL5JPXK
EC Number: 234-042-8
Nikkaji: J116.170I

Properties

Computed structural properties

XLogP: 3.1
Topological polar surface area: 18.5 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 2
Rotatable bonds: 5
Heavy atoms: 12
Formal charge: 0
Complexity: 112

Experimental & physicochemical properties

Food Contact Substances · 2 items

FCS -> FDA Cumulative Estimated Daily Intake (CEDI)

FCS -> FDA Inventory of Effective Food Contact Substance (FCS) Notifications

Physical DescriptionLiquid

Physicochemical properties

Melting point: -55 °C · -55°C
Boiling point: 146 °C · 146 °C(lit.)
Density: 0.818 g/mL · 0.818 g/mL at 25 °C(lit.)
vapor pressure: 14.7 hPa · 14.7hPa at 25℃
refractive index: 20 · n20/D 1.409(lit.)
Flash point: 77 °F · 77 °F
Water Solubility: 13.83 mg/L · 13.83mg/L at 20℃
InChI: InChI=1S/C10H22O2/c1-7-9(3,4)11-12-10(5,6)8-2/h7-8H2,1-6H3
InChIKey: JJRDRFZYKKFYMO-UHFFFAOYSA-N
SMILES: O(C(C)(C)CC)OC(C)(C)CC
LogP: 4.7 at · 4.7 at 25℃
EWG's Food Scores: 1 · 1
FDA UNII: 4 HBL5JPXK · T4HBL5JPXK
NIST Chemistry Reference: (CH3)2C(C2H5)OOC(CH3)2C2H5(10508-09-5)
EPA Substance Registry System: Peroxide, bis(1,1-dimethylpropyl) (10508-09-5)
Symbol(GHS): 2 · GHS02,GHS07,GHS08
Signal word: Warning
Hazard statements: 226 · H226-H242-H315-H341-H413
Precautionary statements: 210 · P210-P233-P240-P241-P242-P243-P280-P234-P235-P264-P201-P202-P273-P303+P361+P353-P370+P378-P302+P352-P332+P313-P362+P364-P308+P313-P403+P235-P403-P410-P411-P420-P405-P501
Hazard Codes: O,Xn
Risk Statements: 8 · 8-22-38-7
Safety Statements: 7 · 7-16-17-36/37/39-47-14
RIDADR: 3107 · UN 3107 5.2
WGK Germany: 2 · 2
RTECS: 8300000 · SD8300000
TSCA: TSCA listed
HazardClass: 5.2 · 5.2
PackingGroup: II
HS Code: 29096000 · 29096000
Toxicity: 50 · mouse,LD50,oral,1450mg/kg (1450mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 263, 1986.
REACH Registrations: Active

Safety & regulation

GHS classification

GHS Classification · 4 items

Danger

H225 (57.7%): Highly Flammable liquid and vapor [Danger Flammable liquids]

P203, P210, P233, P234, P235, P240, P241, P242, P243, P264, P270, P273, P280, P301+P317, P302+P352, P303+P361+P353, P318, P321, P330, P332+P317, P362+P364, P370+P378, P391, P403, P403+P235, P405, P410, P411, P420, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 331 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 4 items

Chemical: Peroxide, bis(1,1-dimethylpropyl)

Peroxide, bis(1,1-dimethylpropyl) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Peroxide, bis(1,1-dimethylpropyl) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 18-11-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/15822

Peroxide, bis(1,1-dimethylpropyl): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Hazard Classes and CategoriesFlam. Liq. 2 (57.7%)

Safety data

wgk: 2
tsca: TSCA listed
rtecs: SD8300000
ridadr: UN 3107 5.2
hs_code: 29096000
Toxicity: mouse,LD50,oral,1450mg/kg (1450mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 263, 1986.
risk_code: 8-22-38-7
Signal word: Warning
Symbol(GHS): GHS02,GHS07,GHS08
hazard_code: O,Xn
safety_code: 7-16-17-36/37/39-47-14
hazard_class: 5.2
packing_group: II
Hazard statements: H226-H242-H315-H341-H413
REACH Registrations: Active
Precautionary statements: P210-P233-P240-P241-P242-P243-P280-P234-P235-P264-P201-P202-P273-P303+P361+P353-P370+P378-P302+P352-P332+P313-P362+P364-P308+P313-P403+P235-P403-P410-P411-P420-P405-P501

Chemistry & industry

Uses & manufacturing

U.S. Production2023: 500,000 - <1,000,000 lb

Consumer UsesNot Known or Reasonably Ascertainable

Industry UsesPlasticizer

General Manufacturing Information · 2 items

Plastics Product Manufacturing

Peroxide, bis(1,1-dimethylpropyl): ACTIVE

Applications · 2 items

DescriptionDi-tert-amyl peroxide (DTAP) is a slightly yellowish, mobile liquid. This liquid dialkyl peroxide is used as an initiator (radical source) in the polymerisation of monomers, like e.g. ethylene, styrene, and (meth)acrylates.

UsesDi-tert-amyl peroxide is commonly used as a radical initiator to induce polymerisation (free radical polymerisation process) for the manufacture of plastic (polypropylene visbreaking, acrylicresins, LDPE/EVA), and as cross-linking agent for the production of resins (resin hardener).