Table 3 Properties of as-prepared biodiesel

Color

Reddish-brown

–

Specific gravity at 25 °C

0.88

0.835

Viscosity at 25 °C (mm²/s)

2.1

3.8 at 40 °C

FFA (wt%)

0.82

–

Saponification value (mg KOH/g oil)

212.3

–

Iodine value

73.5

–

Cetane index

48–60

48–50

Calorific value (MJ/kg)

42.1

42.25

Flash point (°C)

150

145

Cloud point (°C)

3

–1

Pour point (°C)

0

–16