Chemical Properties
clear liquid
Uses
N,N-Dimethyl-1,3-propylenediamine is a useful catalyst for Knoevenagel condensation. It is also a useful hardening agent for expoxy resin.
General Description
Colorless liquid.
Reactivity Profile
DIMETHYLAMINOPROPYLAMINE(109-55-7) neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Air & Water Reactions
Highly flammable. Temperature sensitive and possibly sensitive to air. Water soluble.
Fire Hazard
This compound is flammable.
Description
Dimethylaminopropylamine is an aliphatic amine
present in amphoteric surfactants such as liquid soaps
and shampoos. It is present as an impurity responsible
for allergy from cocamidopropylbetaine. It is structurally
similar to diethylaminopropylamine. It is also used
as a curing agent for epoxy res ins and as an organic
intermediate in chemical syntheses (ion exchangers,
additives for flocculants, cosmetics and fuel additives,
dyes and pesticides).
Production Methods
3-Dimethylaminopropylamine is produced by addition of dimethylamine to acrylonitrile and subsequent hydrogenation in the presence of ammonia.
Flammability and Explosibility
Flammable
Toxicology
There are indications of contact and possibly respiratory allergy in relation to occupational exposure. Less than 0.9 ppm of 3-dimethylaminopropylamine in the workplace air may adversely affect respiratory function. The skin-sensitizing potential was verified in an animal study. In an oral 28-d study with rats (gavage, 7 times per week.), clinical symptoms including pulmonary and cardiac failure were noted at 250 mg kg -1 d -1, but no treatment-related effects at a level of 50 mg kg -1 d -1.
