Description
Synonym: 2,4,6-Trinitrophenol, PA
Linear Formula: (O2N)3C6H2OH
General description
Picric acid (PA, 2,4,6-trinitrophenol) is a polynitrated aromatic acid. It is strongly acidic in nature. Since it readily dissolves in water, it can easily pollute the environment on exposure. Sensitive detection of PA by tris-imidazolium salt, fluorescent self-assembled nanoscopic organic cage and rhodamine based sensors have been reported. It is widely used for the determination of various organic compounds by spectrophotometric and extractive spectrophotometric methods.
Application
Picric acid has been used in the preparation of Bouin′s fixative[5] and picric acid/sodium azide/multi-walled carbon nanotubes.
Picric acid was used in the quantitative determination of bisoprolol.
PROPERTIES
vapor density
7.9 (vs air)
Pack size
500g
vapor pressure
1 mmHg ( 195 °C)
Assay
≥98%
form
powder or crystals (with a top layer of Liquid)
contains
≥35% water
expl. lim.
0.01 %
mp
122-123 °C (dried material) (lit.)
solubility
alcohol: 1 (g/12 mL)(lit.)
benzene: 1 g/10 mL
chloroform: 1 (g/35 mL)
diethyl ether: 1 (g/65 mL)
density
1.763 g/cm3
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