APPEARANCE BLUE POWDER SHADE YELLOWISH HEAT RESISTANCE 160 °C min LIGHT FASTNESS 6-7 ACID RESISTANCE 5 ALKALI RESISTANCE 5 WATER RESISTANCE 5 DENSITY 1.35 g/cm 3 RESIDUE ON 80 MESH 5.0% max WATER SOLUBLE 1.0% max VOLATITE 105 °C 1.0% max TINTING STRENGTH 100-105 %