DMAEE CAS:1704-62-7 Usage and Manufacturing Method

DMAEE CAS:1704-62-7 Usage and Manufacturing Method

Brief introduction.
Dimethyldiethanolamine is a chemical substance.
Alias: Dimethylaminoethoxyethanol
Abbreviation: DMAEE
English name: dimethyaminoethoxyethanol, dimethyl2-(2-aminoethoxy)ethanol
Molecular formula: C6H15NO2
Relative molecular weight:133.2
CAS No.:1704-62-7

Formulation.
Recipe weight:133.19
Purity percentage: ≥98.0% (GC)
Physical form: Liquid

Experimental operation.
[ 50-00-0 ] + [ 929-06-6 ] = [ 1704-62-7 ]
Phase I: 0.5 hr.
Phase II: 100 - 110 °C; 2 h.
Phase III: 120 °C; 4 h.
Synthesis To a 250 ml three-necked flask was added 63.1 g of
diethyleneglycolamine (0.6 mol), 34.5 g of paraformaldehyde (1.2 mol), stirred
for 30 min and 63 g of formic acid (1.2 mol, 88%) was added dropwise at a
temperature of 100 to 110 °C and reacted at about 100 °C for 1 h. Distill out
30 g under reduced pressure (vacuum - 0.094 MPa, kettle temperature 80°C). The
distillation ended with 90.0% product and 9.8% impurity (S-2) content. _: The
liquid from step 2) was transferred to a 500 ml distillation flask and
distilled under reduced pressure at a vacuum of -0.094 mpa. 62°C component was
n-butanol ester exchanged down to formic acid as butanol, 121° C DMAEE
component that is the product. Collected 121 ° C component 128.3g, yield
96.5%, the Uses.
DMAEE is a low odor reactive foaming catalyst, mainly used in rigid packaging
foam, also used in molded flexible foam and polyether urethane flexible
foam.DMAEE is also an important intermediate, used in polyurethane coatings,
surfactants, mine reinforcement and many other fields. Zhongke's organic amine
catalyst and curing agent series products will be put into production one after
another, and the core catalyst and curing agent products will be used as the
basis for the subsequent development of new materials for high value-added
polyurethane and epoxy resin by precisely matching the market changes.

Integrated manufacturing method of dmae and dmaee in microtubular reactor.
A method of integrated preparation of DMAE and DMAEE in microtube reactor is
disclosed, which includes the following steps in turn: pumping ethylene oxide
and aqueous dimethylamine solution formed by mixing dimethylamine with water as
catalyst as materials into the microtube reactor respectively, controlling the
molar ratio of ethylene oxide to dimethylamine as 1~2:1; setting the reaction
temperature in the microtube reactor as 60~90°C and pressure as 1.3 ±0.2 Pa,
and the residence time of the material in the microtubular reactor is
controlled to be 15～90s; the effluent from the microtubular reactor is an
aqueous solution of DMAE and DMAEE. The method of the present invention has the
advantages of high atomic economy, good reaction selectivity, mild reaction
conditions, short reaction time, simple catalyst, and simple product
separation.

Safety information :
Risk terminology
R21:Harmful in contact with skin.
R41:Risk of serious damage to the eyes.

Safety Terminology
S26:In case of contact with eyes, rinse immediately with plenty of water and
seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.

Storage and transportation.
Should be kept sealed and stored in a dry, cool, ventilated warehouse

Packaging.
200KG/drum Storage: It is recommended to store in a dry and cool area with
proper ventilation. After the original packaging, please fasten the lid as soon
as possible to prevent the mixing of other substances such as moisture to
affect the performance of the product. Do not inhale dust and avoid skin and
mucous membrane contact. Smoking, eating and drinking are prohibited in the
workplace. After work, shower and change clothes. Store contaminated clothes
separately and wash them before use. Maintain good hygiene habits.
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Minimum Order: 100 kilograms

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