Ethyl tertbutyl ether (ETBE)

Characteristics
ETBE is produced in the process of synthesis of C4 fraction – contained isobutylene with alcohol (bioethanol).

The synthesis of the isobutylene with alcohol runs in the presence of acidic ion exchange resins as the catalyst.

Application
Our entire output of ETBE is used as a component of fuel petrol to increase its octane rating. 

Properties

ETHYL-tert-BUTYL ETHER (CH3)3C-O-C2H5
ETBE content in product min. 96% by weight
CAS Number 637-92-3
WE (EINECS) Number 211-309-7
Index number -
Hazard classification F; R11
Molar mass : 102,2
Appearance  : clear liquid
Colour  : colourless
Odour  : distinctive
Density at 15°C : approx. 0,75 g/cm3
Melting point  : -94°C
Boiling point : 72,8°C
pH : not subject to determination
Flash point : <-15°C
Autoignition temperature : 400°C
Explosive limits at 160°C  : 2.1 – 10.5% by volume
Density  : 0,75 g/cm3
Vapour pressure
at 25°C
at 37,8°C 

: 17,3 kPa
: 34 kPa
Vapour density relative to air  : > 1
Solubility
- in water at 20°C
- in other solvents 

2% by weight
readily soluble in ether; soluble in alcohol
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