Specification of coal tar
|
Specification
|
Value
|
Water content
|
2.5 - 5 %
|
Viscosity at 100 c
|
2 - 5
|
Flash point (closed)
|
Min 90 c
|
Density at 20 c
|
12 - 22 %
|
Quinolne insoluble
|
9 % - 14 %
|
Phenol content
|
0.6 - 1 %
|
Naphthalene content
|
5 - 10 %
|
Carbon content
|
90 - 93 %
|
Hydrogen content
|
5 % - 6 %
|
Nitrogen
|
0.6 % - 1.2 %
|
Sulpher content
|
0.5 - 0.7 %
|
Sudium content ppm
|
25 - 30 %
|
Chlorine content
|
Traces
|
Bm c i
|
180 - 189
|
|