Colorless or Slightly Yellow with CAS 122-20-3

• CAS No.: 122-20-3
• Type: Pharmaceutical Intermediates
• Appearance: Liquid
• Model NO.: 97%
• Quality: Industrial
• Colour: Colorless
• Transport Package: Barreled
• Specification: 200kg
• Origin: China
• Production Capacity: 500000

Product Description

Chemical properties:
Colorless to pale yellow transparent viscous liquid

Use
Used as pharmaceutical raw material, solvent for photographic developer, solvent for paraffin oil in rayon, emulsifier for cosmetics, etc. Triisopropanolamine can be used as gas absorbent, antioxidant; as grinding aid in cement industry; fiber industry Used as refining agent, antistatic agent, dyeing auxiliaries, fiber wetting agent; used as antioxidant and plasticizer in lubricating oil and cutting oil; used as cross-linking agent in plastic industry; Substance dispersants and curing agents in the polyurethane industry, etc.
Uses are mainly used for the synthesis of intermediates, and as a chain extender on PU and as a neutralizing agent on daily chemicals.
The production method uses liquid ammonia and propylene oxide as raw materials, uses water as a catalyst, prepares materials according to the molar ratio of liquid ammonia and propylene oxide as 3.00~3.05, and adds deionized water at one time, and the dosage ensures that the concentration of ammonia water is 28~ 60%; liquid ammonia and propylene oxide are divided into two feeds, each time first add half the amount of liquid ammonia, keep the temperature at 20 ~ 50 ºC, then slowly add half the amount of propylene oxide, stir well, and keep the kettle The internal pressure is below 0.5 MPa, the reaction temperature is 20 to 75 ° C, and is maintained for 1.0 to 3.0 hours; after the addition of propylene oxide, the temperature of the reaction kettle is controlled to 20 to 120 ° C, and the reaction is continued for 1.0 to 3.0 hours. When the water content is less than 5%, a triisopropanolamine product is obtained. The method can effectively suppress the production of monoisopropanolamine and diisopropanolamine, has simple process and low investment cost.