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Composition: Polyethylene glycol 3350 (PEG 3350)
H(OCH2CH2)nOH
n = about 76
CAS-No.: 25322-68-3
INCI-designation: PEG-75
Product properties*)
Polyglykol 3350 is a white waxy solid at room temperature.
Its two hydroxy end groups and its ether groups mainly control the physical and chemical properties of Polyethylene Glycol 3350.
Therefore, Polyethylene Glycol 3350 is soluble in water and polar organic solvents like acetone or methanol.
Polyethylene Glycol 3350 is insoluble in pure hydrocarbons.
Polyethylene Glycol 3350 displays typical chemical reactions of alcohols/diols.
The solidification point of Polyethylene Glycol 3350 is about 55°C.
Storage
Polyethylene Glycol 3350 can be kept for at least two years when stored in a closed container in a cold, dry place.
Applications
Polyethylene glycol 3350 is used in various applications:
Fields of application:
- Reactive diol/polyether components in polyester or polyurethane resins
- Component of auxiliaries for leather and textile processing
- Cosmetic/pharmaceutical formulations (e.g., humectant or plasticizer for creams, tablets, toothpaste)
- Lubricant and mould release agent for rubber and elastomer processing
- Plasticizer and binder for ceramic and concrete manufacturing
- Component of lubricant formulations
- Water soluble, lubricating component in metalworking fluids
- Humectant for paper, wood, and cellulose films
- Solvent and humectant for dyes and inks
- Modifier for the production of regenerated viscose
- Humectant and plasticizer for adhesives
Product data*)
water content (DIN 51777) % m/m: max. 0.5
Color index APHA(EN 1557) (25 % in water): max. 30
pH ( 5 % w/w in water) (DIN EN 1262): 5 – 7
hydroxyl number (DIN 53240) mg KOH/g: 30 – 37
molecular weight g/mol: 3050 – 3685
solidification point (EP III) °C: 53 – 57
viscosity at 20°C (50 % w/w in water) (DIN 51562) mPas: 85 – 105
flash point (DIN 51376) °C: 260
ignition temperature (DIN 51794) °C : >320
ethylene oxide ppm: max. 1
dioxane ppm: max. 1
