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Chemical-physical properties of biodiesel

The most widely used alternative fuels are based on methyl esters of fatty acids from rapeseed oil. In the table are some of the main physico-chemical characteristics of rape oil and methyl esters obtained on its basis. (MERM)


Basic physico-chemical characteristics of rape oil and the methyl esters obtained from its base (MERM):

Indicator

Rape oil

МЕРМ

Formula

С57Н101,6О6

С19Н35,2О2

Molecular weight, kg/kmol

883

296

Net Calorific Value MJ/kg

36,7

37,1

Cetane number

44

52-56

Density at 150С, kg/m3

916

882

Viscosity at 200Cmm2/s

75

6-8