Table 4 Physiochemical properties of H2.

From: Hydrogen enhanced biodiesel production from Botryococcus braunii algal oil for sustainable fuel development

PROPERTIES

ASTM

H2

Octane number

D 2699

136

Density, kg/m3

D 3588

0.089

Autoignition Temperature, ℃

-

623

CV, MJ/kg

D 1945

146.37

Flashpoint, ℃

-

−254

Fire point, ℃

-

−245

Purity, %

D 7941

99.99

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