AS: 1326-82-5 Â Colour Index No.: C.I. Sulphur Black 1( 53185) Appearance Black Viscid Liquid Strength ( with the standard ) 100% Shade Approximate to the Standard PH Value 12.0-13.5 Viscosity mpa.s d 300 Density g/ cm3 d 1.30-1.50 Â Packing: In 35kgs plastic drums.