Phenylmercuric Nitrate USP

Phenylmercuric nitrate is a member of benzenes. It is an organomercury compound, occurs as a white to pale yellow powder.


It has powerful antiseptic and antifungal effects. It was once commonly used as a topical solution for disinfecting wounds. Used as a preservative in pharmaceutics aid. 


Test Specification
Characters It occurs as white, crystalline powder. Is affected by light

Test A


Test B

Test C



a.    Specified test. The mixture becomes yellow, and the characteristic odor of nitrobenzene is evolved

b.   Specified test. A white precipitate is formed.

c.    Specified test. There is no reaction in the cold, but upon heating in a boiling water bath for 10 min, a black precipitate is formed.

Solubility Slightly soluble in alcohol and in glycerin; very slightly soluble in water. It is more soluble in the presence of either nitric acid or alkali hydroxides.
Residue on ignition  Not more than 0.1%
Mercury Ions No yellow precipitate is formed (mercuric ions), and the solution does not darken (mercurous ions).
Residual Solvents Meets the requirements
Assay –

A.      Phenylmercuric Ion(C6H5Hg+)

B.      Mercury (Hg)



a)   Not less than 87.0% and not more than  87.9% of phenylmercuric ion

b)   Not less than 62.5 % to not more than 63.50% of Hg (dried substance).


Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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