Spolostan 4L

Identification

Product series

INCI name

Sodium Polynaphthalenesulfonate

Chemical description

Sodium salt of low-molecular condensate of naphthalenesulfonic acid with formaldehyde

Chemical composition

CAS

9084-06-4

EC name

Spolostan 4L 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 4L 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

active matter, % wt., min.
34
density at 20°C, g/cm3, c.
1.21
pH, 3% aqueous solution
6,5 - 8,0
sodium sulfate, % wt., max.
4
appearance at 20°C
dark brown liquid
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