Esters

What esters are

Dyna Glycols manufactures fatty-acid esters by reacting a named alcohol or polyol with a named acid to agreed saponification, hydroxyl and acid values. The family covers glyceryl, glycol, PEG, sorbitan, polyglycerol, alkyl benzoate and fatty alcohol esters used as emulsifiers, emollients, pearlising waxes, lubricant esters and food-adjacent additives.

This page is the map. Open a child family for moles, melt range and INCI-style names. An industrial ester TDS is not automatically a food or cosmetic pack — the documentation brief belongs on the enquiry.

How Dyna Glycols manufactures esters

Esterification is run on dedicated plant with distillation and 24/7 QA. Identity tests are SAP, hydroxyl (for partial esters), acid value, melt or viscosity, colour and water. Custom acid/alcohol pairs are quoted when a catalogue point is close but not exact.

PEG esters and glyceryl PEG cocoates are made on the same network as polyethylene glycol, so backbone MW and residual PEG can be controlled together.

Typical grades in this range

Choose the polyol or alcohol first, then the fatty acid. Child pages list the catalogue esters.

• Glyceryl esters: GMS, GMO, GML, GTS, GTO and ethoxylated glyceryl cocoates
• Glycol esters: ethylene and propylene glycol mono/di stearates, oleates, laurates, palmitates
• PEG esters: mono/di laurate, stearate, oleate, palmitate on PEG 200–6000
• Sorbitan esters and matched polysorbates
• Fatty acid/alcohol esters: butyl, octyl, cetyl, oleyl, stearyl, isoamyl, decyl, tridecyl cuts
• Alkyl benzoates (synthetic C12-15 and natural-alcohol grades)
• Polyglycerol and polyglycerol esters

Where esters are used

Personal care uses glyceryl and glycol esters as cream bases and pearlising waxes, alkyl benzoates as light emollients and UV-filter solvents, and PEG esters as O/W emulsifiers. Food and bakery systems use selected glyceryl, sorbitan and PG esters where the additive brief allows.

Textile lubricants, metal-working esters, defoamers for latex, agro solvents (GMO, butyl stearate) and leather auxiliaries take industrial cuts. Specify the industry so the TDS residual-solvent and odour windows match.

How to specify esters

Name the alcohol or polyol, the fatty acid, mono vs di vs tri, SAP/hydroxyl, melt or viscosity, colour and the application (food, cosmetic, industrial). Attach any heavy-metal or residual-solvent tests the receiving lab will run.

For a cream, say whether the partner is glyceryl stearate plus PEG-100 stearate, a sorbitan/polysorbate pair, or a PEG-free polyglycerol ester.

Quality, documents and supply

Lots are released against the ester identity tests on the child TDS. SDS and COA follow verification. Samples should be trialled in the actual oil phase; a bottle emulsification test is not a bakery crumb test.

Store dry. Melt waxy stearates uniformly. Protect oleates from air. Follow the SDS.

Practical notes on esters

Partial esters (high hydroxyl) emulsify differently from triesters of the same fatty acid. Distilled high-mono GMS is not a 40–60% mono mixed glyceride.

PEG esters hydrolyse less readily in water than some short esters and are used in water-containing creams; they are not PEG-free.

Alkyl benzoate from natural C12-14 alcohol is offered as an alternative to synthetic C12-15. They are similar emollients, not assumed analytical copies — run a paired skin-feel and UV-filter solvent trial.

Related chemistry pages: glyceryl esters, glycol esters, PEG esters, sorbitan esters, fatty acid esters, alkyl benzoates, polyglycerol. Related industry: personal care, food emulsifiers, agro.

English is the source language for INCI and additive claims. Machine translation is not a specification.

Once a trial lot is approved, freeze SAP, hydroxyl and acid value so later deliveries match the evaluation.

Ordering and evaluating esters

Send the application, the analytical window and the pack size when you request a laboratory sample of esters. SDS, TDS and COA follow a short company check. Handle and store the grade as the SDS describes.