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The Technical Data Sheet of DMTDA

- Nov 22, 2018 -

Chemicals Technical Data Sheet

 

English nameDimethylthiotoluenediamine (DMTDA)

CAS NO106264-79-3

EINECS NO403-240-8

UN NO3082

Transport hazard class (es)9

Similar products: U.S AIbemarle (Ethacure 300)

 

1. Physical and chemical properties

 

Property

Result

Molecular formula

C9H14N2S2

Structural formula

 

Molecular weight

214.34

Initial boiling point

200°C (1.68 mmHg)

Refractive index

1.659

Melting point/ freezing point

4°C

Flash point

163.4°C

Vapour pressure (kPa)

0.0001

Relative density g/cm3 at 25 °C

1.206

Viscosity20°C)

690

Vapour pressure

mmHg ≤ 0.01 (20°C)

 

2. Standard value

Property

Result

Appearance

Light yellow liquid

Dimethylthiotoluenediamine

 95%

Methylthiotoluenediamine

 4.0%

Trimethylthiotoluenediamine

 1.0%

Water content

 0.1%

Amine value (mg KOH/g)

515-535

 

3. Uses and applications

DMTDA is a new type of polyurethane elastomer curing crosslinking agent, equivalent to Ethancure-300. Mainly includes two kinds of isomers, 2,4-isomer and 2,6-isomer ( The ratio is about 77~80% / 17~20%), compared with MOCA, it is low viscosity liquid under normal temperature, can be used in low temperature.

DMTDA is a low toxicity and environmental protection type liquid diamine chain extender, mainly used for polyurethane elastomer, RIM (reaction injection molding), SPUA (spray polyurea elastomer) and the adhesives. At the same time, it may be used as curing agent for epoxy resin, it has been widely used in polyurethane rollers, medical science, stamping and so on. In addition, it has a wide range of applications in the automobile, construction, mining, metal mining, textile, papermaking, printing. The curing speed of DMTDA is much slower than that of DETDA, which can be mixed with DETDA in different proportions, to adjust the curing speed to meet different requirements.

 

4. Packaging and transport

Packaging for 1000KG/IBC barrels, 200kg drums or ISOTANK, the special packaging in accordance with the requirements of customers.

 

5. Storage

Stacked in a cool/ dry/ ventilated place, keep away from heat/ fire, to prevent the direct sunlight, to avoid high temperature, do not sharp object collision damage.

 


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