CAS No. | 482-89-3 | Other Names | indigo |
MF | C16H10N2O2 | EINECS No. | 207-586-9 |
Place of Origin | Henan, China | Type | Reactive Dye |
Usage | Textile Dyestuffs | Model Number | 94% |
Purity | 94% |
Blue Shade Indigo Dye Granule 94%
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.
Indigo Specification:
Products name |
Indigo(C.I Vat Blue 1#) |
constitutional formula |
|
molecular formula |
C16H10N2O2 |
molecular weight |
262 |
nature |
This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether, but can be dissolved in hot aniline and melt phthalic anhydride. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance. |
test condition |
HG/T 2750-1996 |
appearance |
dark-blue uniform powder or granule |
(1)original powder |
|
content |
%≥94.0 |
particbe size(60mesh) |
%≥96.0 |
moisture |
%≤1.0 |
Fe3+ |