Journal of Engineering and Applied Science

Table 2 Basic (fuel) properties of BSO ester and diesel

From: The rheological and filtration properties of black seed (Nigella Sativa L.) ester as a base fluid in drilling fluid

Properties	BSO ester	Diesel
Colour	Clear Liquid	Brown Liquid
Appearance Form	Viscous Liquid	Viscous Liquid
Kinematic Viscosity (40⁰C) (mm²/s)	2.70	3.52
Dynamic Viscosity (cp)	2.57	2.98
Density (g/ml) at 15⁰C	0.95	0.85
Specific Gravity	0.95	0.85
Flash Point	163	78
Cloud Point	-28	-7
Pour Point	-15	-18

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