Picramic acid Property

Melting point:

169°C

Boiling point:

336.62°C (rough estimate)

Density 

1.6937 (rough estimate)

vapor pressure 

0-0Pa at 25℃

refractive index 

1.6910 (estimate)

solubility 

Chloroform (Slightly), Water (Slightly)

form 

Solid

color 

Red to Dark Red

Water Solubility 

<0.1 g/100 mL at 20.5 ºC

Merck 

14,7409

Stability:

Stable. Combustible - burns rapidly: dangerous fire risk. Do not subject to shock, friction or heat. Incompatible with strong oxidizing agents.

LogP

0.93 at 25℃

CAS DataBase Reference

96-91-3(CAS DataBase Reference)

NIST Chemistry Reference

Picramic acid(96-91-3)

EPA Substance Registry System

Picramic acid (96-91-3)

Safety

Hazard Codes 

E,Xn,F

Risk Statements 

1-20/21/22-52/53-11

Safety Statements 

35-61-36/37

RIDADR 

3317

RTECS 

SJ5800000

HazardClass 

4.1

PackingGroup 

II

Hazardous Substances Data

96-91-3(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H332Harmful if inhaled

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P322Specific measures (see …on this label).

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

Picramic acid Chemical Properties,Usage,Production

Chemical Properties

dark red crystals

Uses

manufacture of azo dyes; rarely as indicator (yellow with acids, red with alkalies); reagent for albumin.

General Description

Dark red needles or prisms. Red crystals. Water insoluble. Explosive in the dry state but desensitized by wetting. Easily ignited and once ignited burn readily.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Picramic acid should not be subjected to strong shock or heat, and is a dangerous fire risk. Picramic acid reacts with strong oxidizing agents. . Explodes if dried and exposed to heat, flame, friction or shock. Wetting greatly reduces this tendency. Treat as an explosive. Mixing with reducing agents, including hydrides, sulfides, nitrides, and alkali metals may lead to a vigorous reaction that culminates in a detonation. May explode in the presence of a base such as sodium hydroxide or potassium hydroxide, even in the presence of water or organic solvents. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. An amino acid (reacts as an acid with bases and as a base with acids).

Fire Hazard

Picramic acid ignites rapidly and burns relatively fast.

Flammability and Explosibility

Non flammable