METHYL DIETHANOLAMINE- ▸ Gas treating: Selective absorbent for hydrogen sulfide and carbon dioxide
- ▸ Chemical intermediate: Feedstock for cationic surfactants and amine derivatives
- ▸ Polyurethane: Catalyst for polyurethane foam systems
- ▸ pH control: Acid-gas neutralizing and pH-adjusting agent
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Methyldiethanolamine (CAS 105-59-9) is a tertiary alkanolamine. It is used to absorb acidic gases such as hydrogen sulfide and carbon dioxide in gas treating and refining, as a chemical intermediate including for cationic surfactants, as a catalyst for polyurethane foams, and as a pH-control agent.
Frequently Asked Questions
What is methyldiethanolamine used for?
MDEA (CAS 105-59-9) is a tertiary alkanolamine used to absorb acidic gases such as hydrogen sulfide and carbon dioxide in gas treating and refining, as a chemical intermediate (including for cationic surfactants), as a polyurethane-foam catalyst, and as a pH-control agent. RawSource supplies it in bulk for gas treating and synthesis.
What is MDEA used for in a refinery?
In refineries and gas plants, MDEA is used as a selective absorbent to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from gas streams. Its tertiary-amine structure allows selective H2S pickup over CO2, which is valued in sour-gas treating and tail-gas units.
Is methyldiethanolamine an amine or an alcohol?
It is both – an alkanolamine. MDEA is a tertiary amine bearing two hydroxyethyl (alcohol) groups and one methyl group, formula C5H13NO2, which is why it functions in both acid-gas absorption and pH control.
What CAS number and HS code apply to MDEA?
CAS 105-59-9; HS code 2922.17 (amino-alcohols, their ethers and esters: methyldiethanolamine and ethyldiethanolamine).
What is the cost of bulk methyldiethanolamine?
Bulk MDEA pricing depends on volume, packaging (drums, totes, or bulk), and freight. Request a bulk quote from RawSource with your target quantity and delivery location for current pricing and lead time.
