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     Lignosulfonate treatment

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Technical characteristics

Technical lignosulfonates - are nature water resistants sulfo derivants of lignin, nascent in time of sulphit method of delignification of the wood, i.e. are the sodium salts of lignosulfonate acids with the dirt of mineral and reducing substances. Interest to lignosulfonates is due to the high surface activity, what lets to use these additives in different branches of industry - petrolium, mineral, chemical, metallurgy, mixtures manufacture and concrete, foundry.

Index name

Liquid lignosulfonates

Powder lignosulfonates

Appearance, color

Viscous liquidity of dark-brown color

Farinaceous powder from lightyellow to brown color

Fraction of total mass, %, at least

50,0

92,0

Fraction of basic substance, %, at least

-

58,0

Fraction of ash to fraction of dry substances, %, at least

26,0

24,0

Concentration of hydrogen ions of lignosulfonate solution, un. pH, at least

4,5

4,6

The strengh limit expansibility of dried samples, µPa, at least

0,60

0,60

Conditional viscousity, sec., at least

100

-

Fraction of reducing substances to fraction of dry substances, %, not above

15

-

Solidness, kg/m³, at least

1280

-

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