Picric Acid

[BRUCE1]

PICRIC ACID DATA !!


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General
Synonyms: 2,4,6-trinitrophenol, phenol trinitrate, picronitric acid, nitroxanthic acid, melinite
Molecular formula: 2,4,6-(NO2)3C6H2OH
CAS No: 88-89-1
EC No: 201-865-9
Annex I Index No: 609-009-00-X
Physical data
Appearance: yellow crystalline solid, stored under water
Melting point: 122 C
Boiling point:
Vapour density:
Vapour pressure:
Density (g cm-3): 1.77
Flash point: 150 C
Explosion limits:
Autoignition temperature:
Water solubility: moderate

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 metals are usually shock-sensitive explosives.
Toxicology
The most serious hazard associated with this chemical is the risk of explosion, which is severe if the acid is dry. Toxic if swallowed, inhaled or absorbed through the skin. Inhalation of dust may cause lung damage. Chronic exposure may cause liver or kidney damage. May cause allergic reaction on skin contact; may discolour the skin. Typical TLV/TWA 0.1 mg/m3.
Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)
ORL-RAT LD50 200 mg kg-1

Risk phrases
(The meaning of any risk phrases which appear in this section is given here.)
R1 R4 R11 R23 R24 R25.

Transport information
(The meaning of any UN hazard codes which appear in this section is given here.)
UN No 1344. Hazard class 4.1. Packing group I.
Personal protection
Safety glasses, adequate ventilation. If working with anything other than the wet solid full face protection is essential. A COSHH Statement is required and a full Risk Assessment must be made before starting work. Maintain at least a 20% water content at all times. Never try to open a bottle of picric acid if crystals are visible at the rim of the bottle, even if the bottle contains water, since the friction when the cap is twisted may be sufficient to detonate the acid.
Safety phrases
(The meaning of any safety phrases which appear in this section is given here.)
S35 S36 S37 S45.

[maharg]

Originally Posted by MigdaleGal

I bought mine a "Women In Waders" calendar for Christmas and he still did not say thank you.

It all depends who the "winnin" are in the pictures, or maybe he bats for the other side

[andypandy]

I also almost bought some of this last year to dye alot of my materials BUT then thought with a child and wife near the area i would be dying wasnt safe.......

SSSOOOO i gave it a miss and now i just pay for the materials

andy