Triethylenediamine/CAS 280-57-9

Overview:

Triethylenediamine, also known as triethylenediamine. White or light yellow crystal. Ammonia odor, this product is an organic synthesis intermediate, synthetic light stabilization materials, widely used in polyurethane foam, elastomers and plastic products and molding process. It is also the initiator of polymers, and can be used as catalyst for ethylene polymerization and catalyst for ethylene oxide hydrocarbon polymerization, etc. Its derivatives can be used as corrosion inhibitors and emulsifiers.

Chinese name Triethylene diamine

TRIETHYLENEDIAMINE

Alias 1,4-Diazabicyclo[2.2.2]octane, Triethylenediamine, Triethylenediamine

CAS No. 280-57-9

Water solubility Soluble

Appearance White crystal

Triethylenediamine DABCO Jeffcat TD-100 PC CAT TD100 Addocat 104 TEDA

Basic Information:

Abbreviation: TEDA, DABCO

English name: TRIETHYLENEDIAMINE

Chemical formula: C6H12N2

Physical and chemical properties

TEDA is colorless or white crystal, easy to absorb moisture in the air and agglomerate, alkaline, can absorb CO2 in the air and yellow. It is soluble in acetone, benzene and ethanol. Pure TEDA toxicity is very small, inhalation of saturated TEDA vapor will cause slight mucous membrane irritation, damage to the eyes, irritation of the skin will cause allergies.

Relative density (25℃): about 1.14

Melting point of pure product: 158-159°C

Flash point: 60°C

Boiling point: 174 ℃, easy to sublimate, slightly ammonia odor

Vapor pressure: about 67Pa at 21℃, 533Pa at 50℃, 7.7kPa at 100℃.

Preparation method:

There are several methods to synthesize TEDA at home and abroad, and the general process is to pass an aqueous solution of amine or alcoholamine raw material at a certain flow rate through a reactor filled with catalytic zeolite, react at 320-400°C and 0.3MPa, and then purify it to obtain TEMA.

The use of piperazine and its derivatives for the preparation of TEDA, the efficiency of the product is high and the process is mature to achieve industrialization. However, the output of piperazine and its derivatives in our country is small and the price is high, while the use of ethanolamine as raw material for the production of TEDA, the supply is sufficient, the operation is simple, the cost is low, and it is industrialized in Japan, so it is feasible in China.

Characteristics and Uses

Triethylene diamine is a kind of tertiary amine compound with double heterocyclic structure, which is mainly used as gel catalyst for polyurethane foam, and widely used in flexible, semi-rigid and rigid polyurethane foam and elastomer, in addition, it can be used as catalyst for epoxy resin curing, catalyst for ethylene polymerization, catalyst for propylene, catalyst for acrylolynes polymerization and catalyst for ethylene oxide polymerization.

Triethylene diamine DABCO Jeffcat TD-100 PC CAT TD100 Addocat 104 TEDA

Storage and transportation:

It should be kept sealed and stored in dry, cool and ventilated warehouse.

Packing:

200KG/drum Storage: it is recommended to store in dry and cool area with proper ventilation. Please fasten the package cover as soon as possible after the original packaging to prevent moisture and other substances from mixing and affecting the performance of the product. Do not inhale dust and avoid contact with skin and mucous membranes. Smoking, eating and drinking are prohibited in the workplace. Shower and change clothes after work. Store contaminated clothes separately and reuse them after washing. Maintain good hygiene practices.

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