WATER-SENSITIVE PASTE FOR DETERMINATION OF INTERFACE OF WATER WITH PETROLEUM PRODUCTS Russian patent published in 1995 - IPC

Abstract RU 2042132 C1

FIELD: analytical chemistry. SUBSTANCE: paste containing phenolphthalein, trisodium phosphate, castor oil and kaolin clay has additionally indicator bromphenol blue and silver nitrate at the following ratio of components, wt. -% phenolphthalein 10-20; castor oil 20-30; bromphenol blue 0.01-0.05; silver nitrate 0.05-0.2, and kaolin clay the rest. EFFECT: enhanced quality of paste. 1 tbl

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RU 2 042 132 C1

Authors

Kuznetsov V.A.

Al'Mendeev S.A.

Kasatkin R.B.

Dates

1995-08-20—Published

1992-11-16—Filed