Tri Ethanol Amine
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If RXH is not acid enough to release a proton at alkaline pH, as it is the case with amines, then the reaction has to be carried out in two steps. During the first step the first EO mole is added at acid pH, so that the amine is transformed in ammonium. The reaction produce the mono-, di- and tri-ethanol amines.
Proton release from ammonium NH4+ → NH3 + H+ (here RX- is NH3) Then, the three condensation reactions:
NH3 + EO → NH2CH2CH2OH (mono-ethanol amine MEA)
NH2CH2CH2OH + EO → NH(CH2CH2OH)2 (di-ethanol amine DEA)
NH-(CH2CH2OH)2 + EO → N(CH2CH2OH)3 (tri-ethanol amine TEA)
With an alkyl amine, first the alkyl ammoniumion is formed and it is deprotonated:
RNH3+ → RNH2 + H+ (here RX- is RNH2)
RNH2 + EO → RNH-CH2CH2OH (mono-ethanol alkyl amine)
RNH-CH2CH2OH + EO → RN(CH2CH2OH)2 (di-ethanol alkyl amine)
Once the ethanol amine is attained, the EO polycondensation is carried out at alkaline pH as previously. In many instance the first ethoxylation is stopped when the monoethanol alkyl amine is formed in order to avoid the polycondensation in more than one chain.
Key facts
- Product
- Tri Ethanol Amine
- Part No.
- RXSOL-60-6003-500
- Category
- Lab Chemical
- Supplier
- Muscat Chemical, Barka, South Al Batinah, Oman
- Delivery
- Muscat, Sohar, Salalah, Duqm, Nizwa, Sur, Barka and Gulf ports
- Documents
- MSDS and TDS on request
- Pricing
- Quote on request — contact us or WhatsApp +968 77333599
Dosage
Remarks
Supply Locations
Tri Ethanol Amine manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Tri Ethanol Amine at a competitive price from us. We have ready stock of Tri Ethanol Amine in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.