What is Di-tert-butyl peroxide?

Identification

Product Name:    Di-tert-butyl peroxide    

Synonyms:    (tert-C4H9O)2;(tributyl)peroxide;2-(tert-Butylperoxy)-2-methylpropane;Aztec di-t-butyl peroxoide;bis(1,1-dimethylethyl)-peroxid;bis(t-butyl)peroxide;Bis(tert-butyl) peroxide;bis(tert-butyl)peroxide    

CAS:    110-05-4    

MF:    C8H18O2    

MW:    146.23    

EINECS:    203-733-6    

Structure 

Properties

Melting point     -30 °C    

Boiling point     109-110 °C(lit.)   

Density     0.796 g/mL at 25 °C(lit.)    

Vapor pressure     40 mm Hg ( 20 °C)   

Refractive index     n20/D 1.3891(lit.)   

Fp     34 °F   

Storage temp.     2-8°C   

Solubility     0.063g/l    

Form     Liquid    

Color     Clear    

Water Solubility     immiscible

Uses

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. Di-tert-butyl peroxide is used for synthesis. 

Safety Information according to GHS

Hazard Pictogram(s)
Hazard Statement(s)	H225: Highly flammable liquid and vapour. H242: Heating may cause a fire. H341: Suspected of causing genetic defects. H412: Harmful to aquatic life with long lasting effects.
Precautionary Statement(s)	P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P273: Avoid release to the environment. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P308 + P313: IF exposed or concerned: Get medical advice/ attention. P370 + P378: In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P403 + P235: Store in a well-ventilated place. Keep cool.
Signal Word	Danger
RTECS	ER2450000
Storage class	5.2 Organic peroxides and self-reacting hazardous materials
WGK	WGK 1 slightly hazardous to water
Disposal	10 Organic peroxides can be detected in aqueous solutions or organic solvents using the Perex-Test® (Cat. No. 116206). Pure peroxides are diluted to min. 10% in a suitable solvent or with water and added in small portions, with temperature control, to iron(II) chloride (Cat. No. 103860) solution. Test for complete reaction with the Perex-Test® (Cat. No. 116206). Container D. Explosive substances (storage class 4.1A) should be packed separately and tightly sealed for disposal. Ensure sufficient phlegmatization by water or the stated phlegmatizing agent!

Carcinogenicity

A single exposure (route unspecified, but probably subcutaneous (SC)) of 14.6 mg (～365 mg/kg) produced unconvincing evidence for carcinogenicity owing to the lack of controls in 50 mice observed for more than 80 weeks. Of 35 survivors, 7 (20%) had malignant blood tumors (lymphomas) and 1 had a benign lung tumor (pulmonary adenoma) (93, 7a). Owing to its poor design, this study should be judged inadequate to determine carcinogenicity.

Storage

Store in a cool and well-ventilated areaisolated from easily oxidizable materials.Protect against physical damage. Shippingcontainers are amber glass and polyethylenebottles or steel drums not exceeding 100-lbcapacity.

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