Production of Biodiesel (B100) from Jatropha Oil Using Sodium Hydroxide as Catalyst

Table 4

Characterization of the biodiesel produced.

Property	Unit	Limit (ASTMD6751)	Result
Specific gravity	kg/L	0.95 max	0.90
Kinematic viscosity	c.s.t	1.9–6.0	4.93
Cloud point	°F	40 max	37
Flash point	°F	130 min	138
Cetane number	—	40 min	52
Water by distillation	% vol	0.5 max	Trace
Free glycerin	% mass	0.02 max	0.05
Total glycerin	% mass	0.24 min	0.32
Ash content	% wt	0.1 max	ND
Carbon residue	% wt	15 max	ND
Gross calorific value	cal/gm	10600 min	ND

ND: not determined.