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COAL TAR ( LIQUID , PENCILS , LUMPS )
USED IN ALUMINUM PLANTS*
* ENTERS IN MANY MIXTURES WHICH ARE USED AS A BUFFER AGAINST RUST TO SAVE WATER PIPES AND METAL SURFACES
USED IN SOME PAINTS *
GENERAL SPECIFICATIONS :
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COAL TAR
PITCH ( PENCILS )
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Specification
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Values
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Water Content
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0.5 % max
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Density Gm / cm at 25m
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1.3 max
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Softing Point(mettler)
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90 C
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Toluene insoluble
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34 % min
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Quinolne insoluble
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19 % max
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B-resin
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16 : 22 % min
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Ash Content
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1 % max
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Volatile matter
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54 % max
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Coker value
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52 % min
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