Name: Indigo granule

Another name: reducing indigo
Index no. of dyes: C. I. Reducing blue 1 (73000)
Corresponding foreign trade name: INDIGO (Acna, Fran, ICI)
Molecular formula: C16H10N2O2
Molecular weight: 262.27

EINECS :207-586-9
Chemical name: 3,3 - dioxbisindophenol

Property and usage:

The granular indigo is processed by spray drying the slurry of acid washing indigo with additive, it has advantages of:
1. Free of dust or little flying dust. The granules have certain mechanical strength, and don't create dust easily, so it can improve the working environment and sanitary condition;
2. Good flowability, which is beneficial to the automatic measuring and operation;
3. Good wettability and dispersibility, don't agglomerate or aggregate in use, and is convenient for preparing dye liquor.
4. Good storage stability, and don't absorb moisture easily, and has not electrostatic adsorption phenomenon.
It can also ensure the homogenic color and brilliant color light in printing and dyeing.

Package & Storage:
1.Packing: By 25kgs/drum, inner by double plastic bag.
2.Storage: Stored in a cool&dry well-closed container, keep away from moisture and strong light/heat.
3.Shelf life: Two years under well storage situation.

Indigo Specification: