A chemical compound derived from an acid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides.

Chemical molecule diagram


Monostearate (C18) esters of Polyethylene Glycol (PEG) of 600 molecular weights. They are soluble in water. Monostearate PEG esters improves emulsifier, detergent and lubrication properties. They give excellent wetting with good dispersing characteristics. They are used in shampoos, hair conditioners and lotions also build viscosity in detergent formulations. Monostearate PEG Esters can be used to replace alcohol ethoxylates.

HLB: 13.4

pH1% 5.0 – 7.0

Solubility: Water soluble

Appearance: White solid

Acid Value: <5 mg KOH/

Solids: >98%

Melting pt.: 35°C (95°F)

APPLICATIONS: Emulsifier and co-emulsifier for oil in water emulsions. Effective wetting. Viscosity builder in detergent formulations. Good foam builder. Replaces C16/C18 +13EO alcohol ethoxylates.