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Diethanolamine (CAS 111-42-2) is a multifunctional building block. Its largest use in India is reacting with formaldehyde and phosphorus acid to produce Glyphosate herbicide. In the oil & gas industry, it is a secondary amine used to 'Sweeten' gas by removing H2S and CO2. It is also used to make fatty acid amides (Cocamide DEA) for cosmetics.
Note: Pure DEA has a freezing point of 28°C and often arrives as a solid block in drums during winter, requiring warming.
Glyphosate herbicide intermediate
Removal of acidic gases (CO2/H2S)
Production of Cocamide DEA
Corrosion inhibitor & pH buffer
Lubricant & finishing agent
Cutting fluid additive
Morpholine precursor
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Ready stock at Ports
Compliant transport
Harmful if swallowed. Causes skin irritation and serious eye damage. Suspected of causing cancer through prolonged exposure. Toxic to aquatic life.
DEA itself is fine, but it can react with certain preservatives to form 'Nitrosamines', which are carcinogenic. Regulated limits ensure safety in consumer products.
It is borderline. It melts at 28°C. In India, it is usually a liquid in summer and a white solid wax in winter.
DEA is a secondary amine. It is less corrosive than MEA (Monoethanolamine) and used where high concentrations of acid gas need to be removed at lower pressures.
Yes, Technical 99% DEA is the industry standard starting material for synthesizing IDA (Iminodiacetic acid), the precursor to Glyphosate.