Non-pyrophoric nigrosine base

Details Non-pyrophoric nigrosine base Non-pyrophoric nigrosine base

1980-04-04

1982-11-16

Coughlan, Jr., Paul M.

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C09B 5700

Patent

active

043595774

ABSTRACT:
Nigrosine base (Color Index 50,415:1) which is pyrophoric is made non-pyrophoric by sparging a solution thereof in aniline with air.

REFERENCES:
patent: 1988499 (1935-01-01), Kimmel
patent: 2194423 (1940-03-01), Friese
patent: 2328759 (1943-09-01), Wahl
patent: 4056530 (1977-11-01), Maekawa
Color Index, 3rd Ed., (1971), vol. 3, p. 3642, pub. by Society of Dyers & Colorists.

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