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Picric acid

Picric acid structure

CAS No:
88-89-1
Formula:
C6H3N3O7
Chemical Name:
Picric acid
Synonyms:
Phenol,2,4,6-trinitro-;Picric acid;2,4,6-Trinitrophenol;C.I. 10305;Carbazotic acid;Nitroxanthic acid;Picronitric acid;Trinitrophenol;Melinite;Picral;1-Hydroxy-2,4,6-trinitrobenzene;NSC 36947;NSC 56147;29663-11-4;856615-63-9;856993-13-0;857370-42-4;189195-39-9;190402-10-9
Categories:
Organic Chemistry > Alcohols, Phenols, Phenol Alcohols

Description

Also known as picronitric acid, trinitrophenol, nitroxanthic acid, carbazotic acid or phenoltrinitrate, C6H2(N02)3OH is yellow crystals that are soluble in water, alcohol, chloroform, benzene, and ether with a very bitter taste. It is derived by the nitration of phenolsulfonic acid, obtained by heating phenol with concentrated sulfuric acid, and is used for explosives, matches, electric batteries, and etching copper. Picric acid is a highly flammable, white to yellowish crystalline substance.

Picric acid Basic Attributes

Molecular Weight：

229.1

Exact Mass：

229.10

EC Number：

201-865-9

HScode：

2915900090

Characteristics

PSA：

158

XLogP3：

2.03

Appearance：

yellow solution solution (saturated aqueous)

Density：

1.763 g/cm³

Melting Point：

122-123 °C

Boiling Point：

>300 °C

Flash Point：

150℃

Refractive Index：

1.702

Water Solubility：

alcohol: soluble 1 (g/12 mL)(lit.)

Storage Conditions：

Store at RT.

Vapor Pressure：

1 mm Hg ( 195 °C)

Vapor Density：

7.9 (vs air)

Toxicity：

Oral-Rat LD50: 200 mg/kg; Abdominal cavity-mouse LD50: 56.3 mg/kg

Flammability characteristics：

Combustion produces toxic nitrogen oxide fumes

Explosive limit：

0.01%

Odor：

Odorless

Taste：

Intensely bitter

Safety Information

Packing level：

Hazard category：

4.1

Transport codes：

UN 1344 4.1/PG 1

wgk germany：

hazard class code：

1-4-11-23/24/25-2-36-20/21/22-3

safety instructions：

35-45-37-28-36/37-36-26-16-25

RTECS Number：

TJ7875000

Marks：

F,T,E,Xn

Storage features：

Handle lightly; storeroom ventilated, away from open flames, high temperature, sunlight; stored separately from oxidants and flammables

Explosive characteristics：

High heat, vibration, impact, friction can be explosive

Stability/Shelf Life：

Stability Unstable; may detonate if struck, heated or ground. Highly flammable if dry. May explode if dry - keep wet at all times. Keep water content above 20%. Flammable. Incompatible with strong oxidizing agents, bases, most common metals, ammonia, strong reducing agents. Avoid shock, friction, heat. Compounds formed by reaction with

Precautionary statement(s)：

P210-P280-P312

Hazard Statements：

H228-H302 + H332-H311

Toxicity

Toxicity class：

highly toxic

Picric acid Use and Manufacturing

Explosives, matches; in leather industry; electric batteries; etching copper; manufacture of colored glass; textile mordant; also as reagent.

Computed Properties

Molecular Weight:229.10
XLogP3:0.9
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:7
Exact Mass:228.99709944
Monoisotopic Mass:228.99709944
Topological Polar Surface Area:158
Heavy Atom Count:16
Complexity:292
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Phenol

Benzene

Sulfuric acid

Nitric acid

1-Chloro-2,4-dinitrobenzene

Downstream Products

Ethyl benzoate

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