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United Initiators DTBP Di(tert.butyl)peroxide 110-05-4

Overview of the document:

  • Product name: DTBP (tert-butyl peroxide)
  • CAS No.: 110-05-4
  • Molar mass: 146.2 g/mol
  • Physical state: liquid, technically pure
  • Applications: Initiator (free radical source) for monomer polymerization, rheology control of cross-linked polyethylene and polypropylene.

Technical data:

  • Appearance: colorless liquid
  • Purity: >99%
  • Active oxygen content: more than 10.8%
  • Density at 20°C: approx. 0.79 g/cm3
  • Viscosity at 20°C: approx. 0.8 mPa-s
  • Refractive index at 20°C: approx. 1.389
  • Solubility: insoluble in water, soluble in organic solvents
  • Vapor pressure at different temperatures: 25/75/1000 mbar at 20/40/110°C respectively
  • Critical temperature (SADT): above 80°C
  • Refrigeration stability: liquid remains stable below -25°C
  • Recommended storage temperature: below 40°C
  • Storage stability: 12 months stable from date of delivery

Applications:

  1. Polymer crosslinking:
    • For cross-linking polyethylene (HDPE and LDPE) at temperatures greater than 180°C.
    • Effective and relatively burn-in free.
    • Dosage: 0.5-2% mass ratio according to the material to be cross-linked.
    • Volatile, odorless decomposition product.
    • No sulfide surface odor.
  2. Polypropylene rheology control:
    • Used as a source of free radicals to control the rheology of polypropylene.
    • Temperature range: 200°C - 220°C.
    • Dosage: Based on 0.01% - 0.1% mass ratio of polymer.
    • The lowering of molecular weight averages makes polypropylene easier to reprocess.

Standard Packaging:

  • DTBP is supplied in 20 kg (44.1 lb) polyethylene tanks.

Disclaimer:

  • Information is based on in-house testing using local raw materials and is designed to understand products and applications.
  • There is no warranty of fitness for a particular product nature or for a particular application.
  • The application and use of technical advice based on what is provided is the sole responsibility of the user.
  • Users are encouraged to inspect and test incoming goods to verify their suitability for the intended application.

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Di-tert-butyl peroxide DTBP 110-05-4

Di-tert-butyl peroxide Trade name: initiator DTBP English name: Di-tert-butyl peroxide Chemical name: Di-tert-butyl peroxide Structural formula: Molecular formula: C8H17O2 Molecular weight: 146.2 Theoretical reactive oxygen species: 10.94% CAS No.: 110-05-4 UN No. 3107 Einecs: 203-733-6 IMO/IMDG 5227 Level: 5.2 Road Transportation (ARD): 5.2 Type E liquid organic peroxide. Properties: This product is a slightly yellow trans

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