Method of making the ethanolamine salt of N-nitrosophenylhydroxy

Details Method of making the ethanolamine salt of N-nitrosophenylhydroxy Method of making the ethanolamine salt of N-nitrosophenylhydroxy

1989-04-17

1990-02-06

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

560 4, 562598, 564280, C07C 7600

Patent

active

048989762

ABSTRACT:
The ethanolamine salt of N-nitrosophenylhydroxylamine ("NPHA") is effective as a polymerization inhibitor for ethylenically unsaturated monomers. The ethanolamine salt can be prepared by reacting ethanolamine with the ammonium salt of NPHA. Advantageously, the ethanolamine salt is soluble in high concentrations in water and a variety of polar organic solvents.

REFERENCES:
patent: 3426063 (1969-02-01), Gros

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