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Everfos® 626 is a high performance organo-phosphite processing stabilizer which protects polymers from thermo-oxidative degradation during processing by decomposing hydroperoxides to form non-radical, non-reactive products. It provides outstanding processing stability in a variety of applications and substrates including polyethylene, polypropylene and ethylene-vinylacetate copolymers. EVERFOS-626 can synergistically combine with other primary antioxidant such as EVERNOX-10 and EVERNOX-76 for applications in polyolefins or olefin-copolymers such as HDPE, LLDPE, PP, EVA as well as PC, PA. The blends can also be used in engineering plastics such as PBT, PET, and styrenics, elastomers like PS, ABS, BR, SBS and tickifier resins, adhesives. EVERFOS-626 protects polymers which are prone to oxidation during processing steps (compounding, pelletizing, fabrication and recycling) from molecular weight change (e.g. chain scission of PP, crosslinking of PE) and prevents discoloration.

Functions: Antioxidant, Secondary Antioxidant

Chemical Family: Phosphites

Compatible Polymers & Resins: Acrylonitrile Butadiene Styrene (ABS), Ethylene Vinyl Acetate (EVA), High-Density Polyethylene (HDPE), Linear Low Density Polyethylene (LLDPE) , Polyamides, Polybutadienes, Polybutylene Terephthalate (PBT), Polycarbonates (PC), Polyethylene Terephthalate (PET), Polypropylenes (PP), Polystyrenes (PS), Thermoplastic Elastomers (TPE)

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions

Applications & Uses

Applications

EVERFOS-626 is a high performance organo-phosphite processing stabilizer which protects polymers from thermo-oxidative degradation during processing by decomposing hydroperoxides to form non-radical, non-reactive products. It provides outstanding processing stability in a variety of applications and substrates including polyethylene, polypropylene and ethylene-vinylacetate copolymers. EVERFOS-626 can synergistically combine with other primary antioxidant such as EVERNOX-10 and EVERNOX-76 for applications in polyolefins or olefin-copolymers such as HDPE, LLDPE, PP, EVA as well as PC, PA. The blends can also be used in engineering plastics such as PBT, PET, and styrenics, elastomers like PS, ABS, BR, SBS and tickifier resins, adhesives. EVERFOS-626 protects polymers which are prone to oxidation during processing steps (compounding, pelletizing, fabrication and recycling) from molecular weight change (e.g. chain scission of PP, crosslinking of PE) and prevents discoloration.

Properties

Physical Form
Appearance
White Powder
Physical Properties
ValueUnitsTest Method / Conditions
Bulk Density0.43kg/l
Acetone Solubility at 20°C8.5g/100g
Heptane Solubility at 20°C4.5g/100g
Hexane Solubility at 20°C4.8g/100g
Methanol Solubility at 20°C1.9g/100g
Dichloro-Methane Solubility at 20°C43.0g/100g
Mineral Oil Solubility at 20°C10.0g/100g
Perchloroethylene Solubility at 20°C15.0g/100g
THF Solubility at 20°C35.0g/100g
Tolune Solubility at 20°C35.7g/100g
Water Solubility at 20°CInsolubleg/100g
Typical Properties
ValueUnitsTest Method / Conditions
Molecular Weight604.0
Volatiles Contentmax. 1.0%
Melting Range160-180°C
Content of 2,4-di-tert-butylphenolmax. 1.0%
Phosphorous Contentmin. 10.0-10.5%
Acid Numbermax. 1.0mg KOH/g

Packaging & Availability

Packaging Type
Regional Availability
  • Africa
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Packing

The following packages are available upon customer’s request:

(1) 20 kg foil bag per carton box.

(2) Other specific request.

Storage & Handling

Handling & Safety

EVERFOS-626 should be handled with care and prevent contamination of the environment. Avoid dust formation and ignition sources.

Transportation & Storage

EVERFOS-626 is not a dangerous good according to the transportation regulations.  EVERFOS-626 should be stored under suitable conditions (dry & cool).