United Initiators

Organic peroxides are used as a source of free radicals in many industrial processes, such as polymerization, chemical synthesis and modification of polymers.UI offers a complete portfolio of organic peroxide types for use in all possible industries and applications, partly produced by exclusive, state-of-the-art manufacturing technology. This includes typical standards and special customized details and mixtures from hydroperoxides, ketone peroxides, niobium esters, monopercarbonates, dialkyl peroxides, peccarboxaldehydes, diacyl peroxides and percarbonates.

United Initiators TAPPI-75-AL tert.Amylperoxypivalate 29240-17-3

Product Information Product Name: TAPPI-75-AL (tert-amyl peroxyisovalerate) Chemical Composition: tert-amyl peroxyisovalerate Form: Liquid CAS No.: 29240-17-3 Main Applications: Used as an initiator (source of free radicals) in the polymerization of monomers (e.g., ethylene), and for the polymerization of ethylene and vinyl acetate in conjunction with peroxides that are more thermally stable. Copolymerization of ethylene and vinyl acetate. Appearance: colorless flowing liquid. Technical Data Appearance: Colorless flowing liquid Peroxide content: approx. 75% w/w Reactive oxygen content: approx. 6.37% w/w Desensitizer: High-boiling aliphatic hydrocarbons (boiling point > 1.5°C).

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United Initiators TBPND tert.Butylperoxyneodecanoate 26748-41-4

Product Information Product Name: TBPND (tert-butyl peroxyisodecanoate) Chemical Composition: tert-butyl peroxyisodecanoate Form: Liquid, technically pure CAS No.: 26748-41-4 Main Applications: Used as an initiator (source of free radicals) in the polymerization of monomers (e.g., ethylene, vinyl chloride, vinyl acetate) and in chemical synthesis. Appearance Description: Colorless flowing liquid. Technical data Appearance: colorless flowing liquid Peroxide content: approx. 99% w/w Reactive oxygen content: approx. 6.41% w/w Desensitizer: none Density at 20°C: approx. 0.90 g/cm3 Viscosity at 20°C

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United Initiators TBPND-30-AL (IBC) tert.Butylperoxyneodecanoate 26748-41-4

Product Information Product Name: TBPND-30-AL Chemical Composition: tert.Butylperoxyneodecanoate Form: 30% w/w Alif solution CAS No.: 26748-41-4 Main Application: Used as an initiator (source of free radicals) in the polymerization of monomers, such as ethylene. Description of Appearance: Colorless, flowing liquid, desensitized from about 30% w/w tert.Butylperoxyneodecanoate with Alif hydrocarbons. Technical Data Appearance: colorless liquid Peroxide content: approx. 30% w/w Reactive oxygen content: approx. 1.97% w/w Desensitizer: Alif hydrocarbons Density at 20°C: approx. 0.79 g/cm3 20

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United Initiators TBPND-50-ENF1 tert.Butylperoxyneodecanoate 26748-41-4

Product Information Product Name: TBPND-50-ENF1 Chemical Composition: tert.butylperneodecanoate Form: non-freezing emulsion containing approximately 50% tert.butylperoxyneodecanoate CAS No.: 26748-41-4 Main Applications: Used as an initiator (free radical source) for the polymerization of monomers such as Vinyl chloride) as initiator (free radical source). Technical Data Appearance: White emulsion Peroxide content: approx. 50% w/w Reactive oxygen content: approx. 3.27% w/w Inhibitors: Water/methanol Density (20°C): approx. 0.95 g/c

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United Initiators NOROX?420-75OMS tert.Butylperoxyneodecanoate 26748-41-4

Product Information Product Name: NOROX? 420-75 OMS Chemical Composition: tert-butyl peroxyoctanoate Form: Liquid Mixture CAS No.: 26748-41-4 Main Applications: Used for low-temperature initiation of unsaturated polyester and vinyl ester resins curing, especially suitable for high-temperature processes such as Pultrusion. Technical Data Active Ingredient: 75% Active Oxygen Content: 4.92% Morphology: Colorless Liquid Specific Gravity: 0.857 @ 25°C Refractive Index: 1.432 @ 25°C Flash Point: 56°C (132°F) Solubility: Ethanol, Benzene, Hexane, Methyl Ethyl Ketone, Normal

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United Initiators CEPC Dicetyl peroxydicarbonate 26322-14-5

Product Information Product Name: CEPC Chemical Composition: Dicetylperoxydicarbonate Form: Flakes, Technical Purity Molecular Weight: 570.9 g/mol Main Applications: Used as initiator (free radical source) in polymerization reactions of monomers such as vinyl chloride. Technical Data Morphology: White, greasy flakes Peroxide content: approx. 961 TP6T (% by mass) Reactive oxygen content: approx. 2.691 TP6T (% by mass) Desensitizer: None Heap density: approx. 0.50 kg/l Melting point: approx. 55°C Critical temperature (SADT): approx. 40°C Recommended storage temperature: below 2

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United Initiators BU-50-WO 2,2-Di(tert.butylperoxy)butane 2167-23-9

Product information Product name: BU-50-WO Chemical composition: 2,2-Di(tert.butylperoxy)butane Form: 50% liquid, soluble in white oil (OMS) Main applications: Used as an initiator for the (co-)polymerization reaction of styrene, vinyl acetate, methacrylate, etc. Temperature range: 100-140°C (styrene. (other monomers) Technical data Morphology: colorless liquid Peroxide content: approx. 50% (% by mass) Reactive oxygen content: approx. 6.83% (% by mass) Desensitizing agent: white oil (OMS) Density (20°C): approx. 0.86 g/cm3

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United Initiators BU-50-AL 2,2-Di(tert.butylperoxy)butane 2167-23-9

Product information Product name: BU-50-AL Chemical composition: 2,2-Di(tert.butylperoxy)butane Form: 50% liquid, soluble in aliphatic hydrocarbons (isodecane) Main applications: Used as an initiator for the (co-)polymerization reactions of styrene, ethylene, vinyl acetate, methacrylate, etc. Temperature range: 200-250°C ( Temperature range: 200-250°C (ethylene), 100-140°C (styrene, other monomers) Technical data Morphology: colorless liquid Peroxide content: about 50% (% by mass) Reactive oxygen content: about 6.83% (% by mass) Desensitizer: Isodecane Density (20°)

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United Initiators EHPC-50-ENF1 Di(2-ethylhexyl)peroxydicarbonate 16111-62-9

Product Information Product Name: EHPC-50-ENF1 Chemical Composition: Di-2-ethylhexyl peroxydicarbonate Form: White emulsion containing 50% Di-2-ethylhexyl peroxydicarbonate, desensitized with water and methanol Main Applications: Used as free radical initiator for monomer polymerization, mainly used in the polymerization of vinyl chloride (VCM). Free radical initiator, mainly used in the polymerization of vinyl chloride (VCM) Temperature range: 45 - 60°C Suggested dosage: 0.05 - 0.2% Technical data Morphology: white emulsion Desensitizing agent: water/methanol Content: approx. 50% (quality)

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