Tertiary Amines (Long-Chain Alkyl Dimethyl Amines)

C12, C16 and C18 alkyl dimethyl tertiary amines, the key intermediates for quaternary ammonium salts, betaines and amine oxides. COA with every shipment.

Tertiary amines product photo - colorless to pale yellow transparent liquid

Tertiary Amines

Tertiary Amines

Long-chain alkyl dimethyl tertiary amines - the key intermediates for quaternary ammonium surfactants. Common grades: dodecyldimethylamine (C12 DMA), hexadecyldimethylamine (C16 DMA) and octadecyldimethylamine (C18 DMA).

Main Applications

Used to synthesise quaternary ammonium salts (fabric softeners, biocides), mineral flotation agents and corrosion inhibitors.

Product NameAbbreviationAppearanceGet Quote
DodecyldimethylamineDodecyldimethylamineC12 DMAColorless to pale yellow transparent liquid
HexadecyldimethylamineHexadecyldimethylamineC16 DMAColorless to pale yellow transparent liquid
OctadecyldimethylamineOctadecyldimethylamineC18 DMAColorless to pale yellow liquid (may solidify at low temp.)

Product Overview

Long-chain alkyl dimethyl tertiary amines are the key intermediates for cationic quaternary ammonium surfactants. Produced by catalytic amination of fatty alcohols, they offer high purity, light colour and low primary/secondary amine content.

Shanghai Tuyi holds spot stock of C12 DMA, C16 DMA and C18 DMA with stable availability. Request a quote.

Key Applications

  • C12 DMA: the main raw material for biocide 1227 (benzalkonium chloride)
  • C16 DMA: used to synthesise fabric softener 1631 and antistatic agents
  • C18 DMA: used for softener 1831, oilfield corrosion inhibitors and mineral flotation agents

Quality Specs & Customization

Tertiary amine content, primary/secondary amine impurities, colour and moisture are controlled to premium industry grades and supplied with a COA. Special specifications can be negotiated. Final specifications are subject to contract.

Packaging & Storage

Packed in 200 L steel drums or 160 kg new drums, or to customer requirements. Tertiary amines have a slight amine odour - keep containers sealed, away from ignition sources, and handle as general chemicals.

Ordering Guide

Flexible MOQ with sample testing supported. We can help connect you with downstream quaternisation plants. Export orders can be supplied with English quotations and customs clearance support. Lead time is subject to contract.

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