Čeština
Spolostan 4P
Identification
| Chemical description | Sodium salt of low-molecular condensate of naphthalenesulfonic acid with formaldehyde |
| INCI name | Sodium Polynaphthalenesulfonate |
| EC name | Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt |
| CAS # | 9084-06-4 |
| EC # | - |
Spolostan 4P is an efficient dispersing agent for textile, rubber and plastic industries, suitable for use in dyeing, preparation and stabilization of dispersions. For its dispersing and levelling effect it is commonly used in the process of dyeing with PES disperse dyes, for levelling of basic dyes on PAN fibres and for levelling of anionic dyes on PAD fibres.
Spolostan 4P may also be applied in agriculture as a dispersing agent of pesticides and insecticides to provide wetting ability of dry powders into dispersible aqueous products, in paper industry to extract tall oil from black liquors, or in leather industry as a dispersant of insoluble tannings.
Physical and chemical properties
| appearance at 20°C | yellow-brown powder |
| active matter, % wt., min. | 83.0 |
| sodium sulfate, % wt., max. | 10.0 |
| pH, 1% aqueous solution | 6.5 - 8.0 |
Application areas
|
Dyes and pigments
Leather industry Paints coatings Paper industry Textile auxiliaries
Printing industry Agriculture |
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