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Polyglykol M 350

Polyglykol Methylether

Edition Date :
August 10, 2020
Polyglykol M 350 is a linear, mono hydroxy-functional polyethylene glycol monomethyl ether (M-PEG) that is completely water soluble. Polyglykol M 350 is esterified with methacrylic acid to yield the corresponding polyglycol mono methacrylates which are used for the polymerization of polycarboxylate superplasticizers.

Benefits

  • Low diol content to limit formation of crosslinking diesters
  • Completely water soluble
Product Function
  • Intermediate

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Polyglykol M 350

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MSDS and TDS

Please refer to the Material Safety Data Sheet to have the complete and very latest safety information.

Technical Data

Molar mass [g/mol]

330-370

Diol - concentration [area % HPLC] 

< 0.5

Hydroxyl value (DIN 53240) [mg KOH/g]

152-168

Solidification point EP III °C

Approx. -6

Viscosity at 50°C [mm2/s]

9-11

pH at 5%

5.0-7.0

Applications

Polyglykol M 350 is the raw material for 3rd generation superplasticizers.

It is also used as a chemical intermediate for paint additives.

Packaging and Storage

Delivery form
Liquid

Packaging
Stainless steel or aluminium containers with external heating coil.

Storage
Polyglycols in sealed original packaging have a shelf life of 2 years if stored in a cool, dry place.

Exclusion of moisture is very important, since liquid PEGs are hygroscopic and the solid types absorb any moisture they are exposed to due to their good solubility in water. Each time the containers are opened, they should be resealed to make them airtight.

The storage temperature should not exceed 90°C. The storage tank must have a circulation loop, top to bottom, with a dry nitrogen blanket to prevent product oxidation/degration.