DEHS AEROSOL SUBSTANCE

Di-Ethyl-Hexyl-Sebacat (DEHS) is a no soluble, colourless and odourless liquid which is suitable for producing steady aerosols.
The main proportion of droplets generated by aerosol generators series ATM can to be stated in the most penetration particle size (MPPS 0,2 … 0,3 µm). DEHS is a proven aerosol liquid for challenging clean rooms and laminar flow boxes. Also common are DOP and Emery 3004 which are also available on request. The long life time of droplets enables also to use the aerosol for stream visualisation. DEHS evaporates completely after long times. A droplet with a 0,3 µm diameter has a life time of 4 hours.

Features

– low vapor pressure for increased aerosol lifetime (even at higher temperatures)
– dispersing results in quasi ideal, spherical airborne particles
– dispersing results in macroscopic neutral charged aerosols

Name Di-Ethyl-Hexyl-Sebacate
CAS-No. 122-62-3
Formula C₂₆H₅₀O₄
Norm e.g. EN 1822-1 ISO 14644
Molare mass 426.69 g/mol
Density 912 kg/m³
Dynamic viscosity 22 … 24 mPa s
Melting point 225 K (-48°C)
Boiling point 232 – 249°C
Vapour pressure (293K) <1 Pa
Flash point >473 K (>200°C)
Surface tension 3.2 10^-2 N/m