Preparation of picric acid

Details Preparation of picric acid Preparation of picric acid

1998-06-15

2000-05-16

Fonda, Kathleen K.

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

Organic compounds

Oxygen containing

C07C20500

Patent

active

060639679

ABSTRACT:
Picric acid, namely, 2,4,6-trinitrophenol, is readily and effectively prepared by nitrating o-nitrophenol and/or p-nitrophenol into at least one dinitrophenol in a nitric acid medium of reaction, characteristically essentially consisting of nitric acid or immixture thereof with a strong co-acid, the at least one dinitrophenol remaining soluble in the medium of reaction, and therein completing nitration of the at least one dinitrophenol and precipitating picric acid therefrom.

REFERENCES:
patent: 1349802 (1920-08-01), Badier et al.
patent: 1393714 (1921-10-01), Stine et al.
Organic Chemistry, 3.sup.rd Ed., Hendricksen et al., pp. 660-662, 1970.

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