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PICRIC ACID

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CAS:88-89-1
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CAS:88-89-1
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Products Intro: Product Name:Picric acid
CAS:88-89-1
Purity:0.1 Mg/ML in Acetonitrile: Methanol Package:1ML
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Products Intro: CAS:88-89-1
PICRIC ACID Basic information
Product Name:PICRIC ACID
Synonyms:acidopicrico;Carbazotic Acid;carbazoticacid;Hager's reagent;Kyselina pikrova;kyselinapikrova;Lyddite;Melinite
CAS:88-89-1
MF:C6H3N3O7
MW:229.1
EINECS:201-865-9
Product Categories:Intermediates of Dyes and Pigments;Organics;Building Blocks;C6 to C8;Chemical Synthesis;Organic Building Blocks;Oxygen Compounds;Phenols;Nitro
Mol File:88-89-1.mol
PICRIC ACID Structure
PICRIC ACID Chemical Properties
Melting point 122-123 °C (dried material, Lit. Merck Index 12th Ed.)(lit.)
Boiling point 300℃
density 1.00 g/mL at 20 °C
vapor density 7.9 (vs air)
vapor pressure 1 mm Hg ( 195 °C)
refractive index 1.7630 (estimate)
Fp 150℃
storage temp. Store at RT.
solubility alcohol: soluble1 (g/12 mL)(lit.)
pka0.38(at 25℃)
form solution (saturated aqueous)
Colour Index 10305
Specific Gravity1.005
color yellow solution
PH Range0.2(colourless)-1(yellow)
explosive limit0.01%
λmax354nm
Merck 13,7492
BRN 423400
Stability: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
Major ApplicationExplosives, power circuits, energetic materials, liquefied gas fuels, thin films, power generation, batteries, fuel cells, steel, gold films, nanopowder, antifreeze fluid for automobiles, polymerization inhibitors, tattoo removal from skin, antiinfiammatroy agent, treatment of neoplasm
InChIKeyOXNIZHLAWKMVMX-UHFFFAOYSA-N
CAS DataBase Reference88-89-1(CAS DataBase Reference)
Safety Information
Hazard Codes F,T,E,Xn
Risk Statements 1-4-11-23/24/25-2-36-20/21/22-3
Safety Statements 35-45-37-28-36/37-36-26-16-25
RIDADR UN 1344 4.1/PG 1
WGK Germany 2
RTECS TJ7875000
HazardClass 4.1
PackingGroup I
MSDS Information
ProviderLanguage
SigmaAldrich English
PICRIC ACID Usage And Synthesis
DescriptionPicric acid is a white to yellowish crystalline substance, soluble in most organic solvents and highly flammable. Picric acid is a derivative of phenol. It reacts with metals to form metal picrates, which like picric acid itself are highly sensitive. It is often used for tissue fixative (Bouin solution) for histology specimens, as a booster to detonate another, less sensitive explosive, such as trinitotoluene (TNT). It is used in the manufacture of fireworks, matches, electric batteries, coloured glass, dyes, antiseptics, explosives, disinfectants, leather industries, pharmaceutical, and textile. Picric acid is also used as a yellow dye, as an antiseptic, and in the synthesis of chloropicrin, or nitro-trichloromethane. Picric acids are highly sensitive to heat, shock, or friction and because of the explosive nature it is among the most hazardous substances found in the laboratory.
Chemical PropertiesAlso 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.
Chemical PropertiesPicric acid is a highly flammable, white to yellowish crystalline substance. It used in the manufacture of fi reworks, matches, electric batteries, colored glass, explosives, and disinfectants. Pharmaceutical, textile, and leather industries also make use of picric acid.
Chemical PropertiesPicric acid is a pale yellow, odorless solid. Usually found in solution with 10%20% water. Must be kept wetted; the crystalline form is highly unstable. The dry crystal form is explosive upon rapid heating or mechanical shock.
UsesPreparation of organic derivatives for identification.
UsesExplosives, matches; in leather industry; electric batteries; etching copper; manufacture of colored glass; textile mordant; also as reagent.
General DescriptionA paste or slurry consisting of the yellow crystalline solid mixed with water. The dry compound is a sensitive high explosive. The mixture with water is considered safe for storage, handling and shipping. Can be detonated with a number 8 electric blasting cap. The primary hazard is blast where the entire load explodes instantaneously and not from flying projectiles fragments. Can explode under prolonged exposure to heat.
Air & Water ReactionsWater soluble.
Reactivity ProfilePICRIC ACID undergoes vigorous reactions with both oxidizing or reducing agents. Burns if ignited by a flame and continues to burns quietly if the quantity is small or, if large, is thinly spread over an area. The dry compound can explode if shocked or exposed to heat. Wetting significantly reduces the tendency to explode. Readily forms salts on contact with many metals (including copper, lead, mercury, zinc, nickel, iron) . The salts are sensitive explosives when subjected to heat, friction, or impact. Contact with concrete floors may form the friction-sensitive explosive calcium picrate [Urbanski, 1964, vol. 1, p. 518]. Contact with metallic zinc or lead can cause detonation. Salts with ammonia, amines and complexes with hydrocarbons are less sensitive [Kirk-Othmer, 1965, vol. 8, p. 617].
Health HazardSome are toxic and may be fatal if inhaled, swallowed or absorbed through skin. Contact may cause burns to skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause pollution.
Health HazardExposures to picric acid cause different adverse effects on the skin of animals and humans, such as allergies, dermatitis, irritation, and sensitization. Absorption of picric acid by the system causes headache, fever, nausea, diarrhea, and coma. In high concentrations, picric acid is known to cause damage to the erythrocytes, kidneys, and liver.
Contact allergensContact dermatitis occurred primarily in the explosives industry.
Safety ProfilePoison by ingestion and subcutaneous routes. Mutation data reported. An irritant and an allergen. Shin contact can cause local and systemic allergic reactions. Flammable solid when exposed to heat or flame; can react vigorously with oxidzing materials. Very unstable. A severe explosion hazard when shocked or exposed to heat. It forms salts easily, and many of its salts, known as picrates, are more sensitive explosives than picric acid. It forms unstable salts with concrete, NH3, bases, and metals (e.g., copper, lead, mercury, and zinc). Many of these are heat-, friction-, or impact- sensitive. Mixtures with uranium perchlorate are extremely powerful explosives. mxtures with aluminum and water igmte after a delay period. Can react vigorously with reducing materials. Used in synthesis of dyes, as a drug, to manufacture explosives and matches, to etch copper, and to make colored glass. See also NITRO COMPOUNDS OF AROMATIC HYDROCARBONS and EXPLOSIVES, HIGH.
Potential ExposurePicric acid is used in the synthesis of dye intermediates and in manufacturing picrates; in the manufacture of explosives, rocket fuels; fireworks, colored glass; matches, electric batteries; and disinfectants. It is also used in the pharmaceutical and leather industries; in copper and steel etching; forensic chemistry; histology, textile printing; and photographic emulsions.
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
ShippingUN0154 Picric acid, dry or wetted with <30% water, by mass, Hazard Class: 1D; Labels:1D-Explosive (with a mass explosion hazard); D-Substances or articles which may mass detonate (with blast and/or fragment hazard) when exposed to fire. UN1344 Picric acid, wetted with not less than 30% water, Hazard Class: 4.1; Labels: 4.1-Flammable solid.
Purification MethodsCrystallise the acid first from acetic acid, then acetone, toluene, CHCl3, aqueous 30% EtOH, 95% EtOH, MeOH or H2O. Dry it in a vacuum for 2hours. Alternatively, dry it over Mg(ClO4)2 or fuse (CARE) and allow it to solidify under a vacuum three times. Because it is EXPLOSIVE, picric acid should be stored moistened with H2O, and only small portions should be dried at any one time. The dry acid should NOT be heated. [Beilstein 6 IV 1388.]
IncompatibilitiesExplosive when dry. Violent reaction with oxidizers and reducing materials. Air or oxygen is not required for decomposition. Shock sensitive compounds can be formed on contact with plaster, concrete. An explosive mixture results when the aqueous solution crystallizes. May explosively decompose from heat, shock, friction, or concussion. Copper, lead, zinc and other metals, or their salts can form other salts that are initiators and much more sensitive to shock than this chemical. Corrodes metals.
Waste DisposalControlled incineration in a rotary kiln incinerator equipped with particulate abatement and wet scrubber devices.
PrecautionsWorkers should use protective clothing, avoid skin contact, and use goggles and face masks to avoid dust.
Referenceshttps://en.wikipedia.org/wiki/Picric_acid
https://pubchem.ncbi.nlm.nih.gov/compound/picric_acid#section=InChI
Tag:PICRIC ACID(88-89-1) Related Product Information
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