Appearance:Colorless viscous liquid, hygroscopic, with ammonia odor.
Melting Point:10.5℃
Boiling Point:170.5℃
Relative Density:1.02 (relative to water = 1)
Flash Point:93℃
Refractive Index:1.4540
Solubility:Miscible with water, methanol, and acetone, slightly soluble in benzene and ether. The aqueous solution is alkaline.
Explosion Limit:3.4 - 27% (v/v)
Auto - ignition Temperature:410℃
Production Method6:It is prepared by the reaction of ethylene oxide with ammonia. The reaction also produces diethanolamine and triethanolamine. Controlling the stoichiometry of the reactants can adjust the proportion of products.
Applications
Surfactant Field:It is the largest consumption area of ethanolamine. It can be directly used as a surfactant and can also be synthesized with various acids to produce commonly - used surfactants, which are mainly used in detergents, chemical industry and other fields.
Polyurethane Industry:It can be used as a catalyst and cross - linking agent in the polyurethane (coating) industry.
Textile Industry:Used as a fluorescent brightener.
Dyeing Industry:Used to synthesize high - grade dyes.
Other Fields:Used as a neutralizer in the rubber and ink industries, as well as rust inhibitors, preservatives, and acid gas absorbents, and can also be used in paint manufacturing.
Safety Information
Toxicity:LD₅₀ (oral, rat) is 1515 mg/kg, and LD₅₀ (skin, rabbit) is 1025 mg/kg. Swallowing, skin contact or inhalation is harmful. It can cause severe skin burns and eye damage, and may cause respiratory irritation.
Hazard Symbol:C (Corrosive)
Safety Instructions:S26, S36/S37/S39, S45
Packaging and Storage
Packaging4:Usually packaged in glass bottles, with specifications of 100 ml, 500 ml, etc., and can also be packaged in 25 - liter polyethylene/metallized polyester film drums.
Storage:Should be stored in a cool, dry and well - ventilated place, away from fire and heat sources.