| Place of Origin |
China (Mainland) |
Indigo Powder AppearanceDark blue uniform powder Content:94% min. Iron ion 200 ppm max. Moisture1.0% max.Indigo Granule AppearanceDark blue uniform Granule Content:93% min. Iron ion 200 ppm max. Moisture1.0% max.Mainly used in dying spun cotton, cotton cloth, wool or silk. Pure product being used in food dye or to produce organic pigment.