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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Physico-chemical properties of Clearlink 1000


Substance identification

IUPAC name:4,4'-methylenebis(N-sec-butylcyclohexanamine)


Appearance/physical state/colour

Colourless liquid with slight organic odour.

Melting point (@101325Pa)

Between -21 °C and 4 °C.

Boiling point (@101325Pa)

322 °C

Relative Density

0.9018 at 20 °C

Vapour pressure

0.00113 Pa (at 25 °C)

Partition coefficient, log Kow

1.31 at 23.3 °C

Solubility in water

131 mg/l at 23 °C

Surface tension

31.91 mN/m at 24 °C (Surface active)

Flash point

176 °C

Autoignition temperature

310 °C


pH of 1% water solution is 10.7 (Manufacturer's in-house method:DK/WI/10/03)

Kinematic Viscosity

36.4 mm2s-1at 38 °C (Method: ASTM D 445)