Direct Yellow 50

Direct Yellow 50

TECHNICAL DATA SHEET

Product name:

DIRECT YELLOW 50

CAS NO.:

3214-47-9

C.I.:

29025

EINECS:

221-728-7

Chemical formula:

C35H28N6O13S4.4Na

Molecular structure:

Appearance:
Shade:
Strength:
Odor:
Specific gravity:
PH value:
Solubility: 
Moisture/%:
Insoluble matter:
Light fastness:
Washing fastness(40°С)
Rubbing fastness:
Sublimation fastness (180°С 30sec):
Perspiration fastness:

Yellow powder
Similar to the standard
100±3%
Weak odor  
1.0-1.1
8.0-9.0
70g/L(80°С) in water 
<5.0
<0.5
5
2-3
Dry: 4
Wet: 3
3-4
4

Performance and features:

The product is soluble in water, slightly soluble in glycol-aether, a little soluble in alcohol, insoluble in other organic impregnant. It is mainly used for dyeing cotton, hemp, mucilage glue, silk, and mucilage or cotton mixed textile fabrics.

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