Characteristic |
C. I. |
Fluorescent Brightener 71 |
C. I. No. |
40625 |
CAS No. |
16090-02-1 |
Chemical Class |
Diaminostilbenedisulphonic acid derivate
|
Properties
|
Commercial form
| powder
|
Solubility
| 2 g/l in water at 98°C
|
Efficiency on various types of materials
|
Textile industry
|
Cotton
|
|
Flax
|
|
Viscose
|
|
Polyamide
|
|
Wool
|
|
Natural silk
|
|
Paper industry
|
In mass
|
|
In surface
|
|
In coating
|
|
Detergents industry
|
Cellulosic fibres
| suitable
|
Polyamide
| usable
|
Wool
| usable
|
Natural silk
| usable
|
Acetate
| unsuitable
|
Triacetate
| unsuitable
|
Basic application characteristic
|
Shade of white
| bluish violet
|
Ionogenity
| anionaktiv
|
Afinity
| high
|
Stability
|
Hard water
| stable
|
pH
| 6
|
Oxidizing enviroment
| stable
|
Reducing enviroment
| stable
|
Sodium hypochlorite
| unstable
|
Sodium chlorite
| unstable
|
Fastness
| cotton
| polyamide
| wool
|
standard depth
|
|
|
|
Light Xenotest
| 4
|
|
|
Washing 40°C
| 5
|
|
|
Washing 60°C
| 5
|
|
Application possibilities
|
Application in textile industry 1
|
|
Application in textile industry 2
|
|
Application in paper industry
|
|
Application in detergents
|
|
Testing methods |
Fastness standards
| Light Xenotest
| ISO 105-B02-1994
| Washing
| ISO 105-C01-1989
|
|
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