Direct Red 81

Direct Red 81

TECHNICAL DATA SHEET

Product name:

Direct red 81 liquid

CAS NO.:  

2610-11-9

C.I.:  

28160

EINECS:

220-028-9

Chemical formula:

C29H21N5O8S2.2Na

Molecular structure:

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

Red liquid
Similar to the standard
100±3%
Weak odor  
Not tested
Not tested
<5.0
<1.0
4
4
Dry: 4-5
Wet: 3
2-3
4

Performance and features:

The product is mainly used for dyeing paper.

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