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


Monolaurate (C12) esters of Polyethylene Glycol (PEG) of various molecular weights. They are soluble in water, have low volatility, give very effective wetting, lubrication and emulsification. Monolaurate PEG Esters are used in cleaners, lubricants, greases and metalworking fluids, also in hand soaps, creams and pearlizers.

HLB: 15

pH1% 5.0 – 7.0

Solubility: Water soluble

Appearance: White solid

Acid Value: <5 mg KOH/g

Solids: >98%

Melting pt.: 26-30°C

APPLICATIONS: Effective wetting and viscosity modifier. Good emulsifier.