GENERAL SPECIFICATIONS OF LAKE COLOURS

APPEARANCE

FLUFFY AMORPHOUS POWDER

TOTAL DYE CONTENT ON AS IS BASE

UP TO 35 %

TOTAL DYE CONTENT ON DRY BASIS, (DRIED AT 110° C FOR 2 HRS)

        UP TO 42%

MOISTURE CONTENT AT 110° C

LESS THAN 17%

BLEEDING OR FREE DYE CONTENT

< 0.4% ON DRY BASIS

pH OF 2% SLURRY IN DISTILLED WATER

3.0 TO 7.0

PARTICLE SIZE

300 MESH OR 50-80 MICRONS

BULK DENSITY

ABOUT 0.2 TO 0.5 GM/ ML

HEAVY METAL

20 PPM MAXIMUM

LEAD

10 PPM MAXIMUM

ARSENIC

1 PPM MAXIMUM

MERCURY

1 PPM MAXIMUM