It may be ignited by heat, sparks, or flames. Experts are tested by Chegg as specialists in their subject area. e) Ethanol has higher boiling point than propane. Phenoxide ion is more basic than ethoxide ion. Since picric acid has 3 -NO 2 groups and an -OH group, the -I effect on benzene is highest. and allow free movement of molecules. would get attached to the carbon that needs an electron cloud to share most. 1, p. 518]. period. 2 It was soluble in water and ether, but its aqueous solution changed litmus to blue. To help Teachoo create more content, and view the ad-free version of Teachooo please purchase Teachoo Black subscription. As of February 28th, 2023, NLM has discontinued the Wireless Information System for Emergency Responders (WISER). Violent reaction with oxidizers and reducing materials. 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. 8600 Rockville Pike Picric acid is very unstable and is a flammmable/combustible material. including trade names and synonyms. It forms unstable This page is no longer being updated as of February 28, 2023. Yellow crystals. Readily forms salts on contact with many metals (including copper, lead, mercury, zinc, nickel, iron) . The dry It was once used as a dye and for a few other novel chemistry reactions so it is sometimes found in old schools or laboratories. Careers. Salts with ammonia, amines and complexes with hydrocarbons are less sensitive [Kirk-Othmer, 1965, vol. The Dry TNP is considered an explosion hazard. Reduction to the WebSolid yellow diamond-shaped explosive. Picric acid was mutagenic in the Ames Picric 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. Usually found in solution with 10%20% water. Users who have downloaded and installed the WISER app on a mobile device or downloaded the WISER system to a desktop computer will still have access, although the data will no longer be updated. 26.Picric acid is 2,4,6 trinitrophenol. 4 . Specific Gravity 1.76 Flash towards the C atom with the ketone group, (C) Contact with concrete floors may form the friction-sensitive explosive calcium picrate [Urbanski, 1964, vol. Picric acid is an organic chemical compound, a bright yellow explosive. Contact with metallic zinc or lead can cause detonation. consequence of picric acid exposure, and is typically the cause of Can be detonated with a number 8 electric blasting cap. WebPicric acid (2,4,6-trinitrophenol, CAS No. In high concentrations, picric Must be kept wetted; the crystalline form is highly unstable. -NH It is very rarely used now due to its explosive properties. National Ocean Service, forms characteristic charge-transfer complexes Picric acid, being an aromatic compound can be destroyed using Fenton's reagent. It is also used in the pharmaceutical and leather industries; in copper and steel etching; forensic chemistry; histology, textile printing; and photographic emulsions. When any dry bottles of TNP is found in the public, a bomb squad is usually called to dispose of the bottle, especially if the bottle has a metal cap. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature. picric acid, C6H2(OH)(NO2)3(s), dissolved in 100.0 grams of Although phenol is not a terribly common lab chemical, both salicylic and acetylsalicylic acid can be used, the sulfonation process splitting up the molecules producing carbon dioxide, and acetic acid if acetylsalicylic acid is used. ANSWER KEY 2|Page fTRUE /FALSE 21.True 22.False 23.True 24.True 25.True 26.True 27.True TRUE-FALSE 1. endstream endobj 263 0 obj <. It yields small, pale yellow crystals which are only slightly soluble in the usual solvents and decompose without melting. The sensitivity of picric acid can be dramatically increased by the reaction with other chemicals, especially metals. Name the products obtained when ethanol is treated with CrO 3 in anhydrous medium. The lethal dose (oral) in rabbits is 120 mg/kg. Explosive when dry. Absorption of picric acid by the 'x0\e9bp Keep water content above 20%. Flammability. Readily forms salts on contact with many metals (including copper, lead, mercury, zinc, nickel, iron) that are more sensitive explosives than picric acid itself when subjected to heat, friction, or impact. : 609-009-00-X CAS-No. @LS.a` IW Ethanol National Library of Medicine Accessibility Crystallise the acid first from acetic acid, then acetone, toluene, CHCl3, aqueous 30% EtOH, 95% EtOH, MeOH or H2O. Web(1) [March 2010] Ans: a) Salycylaldehyde (o-hydroxybenzaldehyde) b) Reimer-Tiemann reaction c) Picric acid d) 2,4,6-trinitrophenol. Accessibility WebMelting Point: 252F (NIOSH, 2022) Vapor Pressure: 1 mmHg at 383F (NIOSH, 2022) Vapor Density (Relative to Air): data unavailable Specific Gravity: 1.76 (NIOSH, 2022) : 88-89-1 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial & for professional use only. 4. Accessibility It forms salts easily, and many of its Phenoxide ion is more basic than ethoxide ion. Except where otherwise noted, data are given for materials in their, http://www.sciencemadness.org/talk/files.php?pid=311232&aid=28045, http://www.researchgate.net/publication/231562666_Oxidative_Destruction_of_Picric_Acid_in_Aqueous_Media_by_Fentons_Reagent, http://www.sciencemadness.org/smwiki/index.php?title=Picric_acid&oldid=13496, Articles containing unverified chemical infoboxes, GNU Free Documentation License 1.3 or later. All rights reserved, picricacidformicrosc.moistenedwithwater(h2o~40%), Picric acid solution,2,4,6-Trinitrophenol, Picric acid, extra pure (with approx. Bethesda, MD 20894, Web Policies Initial boiling point and boiling range No data available g) Assume that the colligative molality and the 5. Teachoo answers all your questions if you are a Black user! For potassium, cesium, ruthenium and titanium analysis can also be used for explosives. WebGB955495A GB481362A GB481362A GB955495A GB 955495 A GB955495 A GB 955495A GB 481362 A GB481362 A GB 481362A GB 481362 A GB481362 A GB 481362A GB 955495 A GB955495 A GB 955495A Authority GB United Kingdom Prior art keywords chloroprene dichlorbutene production reaction relating Prior art date 1962-02-08 Legal Add 5.0 ml Con. The article focuses on the topic(s): Picric acid & Phenol. A similar method was employed by Mahajan, et al. 2.5. An explosive mixture results when the aqueous solution crystallizes. WebDry mixtures of picric acid and aluminum powder are inert, but addition of water causes ignition after a delay dependent upon the quantity added. Metal picrates of iron(III), copper(II), and lead in the dry state are as sensitive as PETN. R-phrases: R1 R10 R36 R37 R38: S-phrases: WebSulphosalicylic acid mix well and observe. in analysis for identifying the hydrocarbon. It is also used in etching copper and manufacturing colored glass, in the leather industry, and in the synthesis of dyes. of these are heat-, friction-, or impact- Mixtures with aluminum and water will ignite after a delay period [Hajek, V. et al., Research, 1951, 4, p. 186]. The temperature of 238 C to 244 C (decomposition). stability 8600 Rockville Pike White to yellow crystals. oxidzing materials. and disinfectants; in the pharmaceutical and leather industries; Bethesda, MD 20894, Web Policies Shock sensitive compounds can be formed on contact with plaster, concrete. PICRIC ACID undergoes vigorous reactions with both oxidizing or reducing agents. 8, p. 617]. LC50 (48-h) for red killifish 513 mg/L (Yoshioka et al., 1986). The neutralization process takes several hours and doesn't produce any dangerous side products.[2]. (quoted, Keith and Walters, 1992). WebChemistry questions and answers Calculate the boiling point of a solution of 10.0 grams of picric acid, C6H2 (OH) (NO2)3 (s), dissolved in 100.0 grams of cyclohexane, C6H12 (s). This is one of the biggest concerns with storage; if picric acid is stored incorrectly, for example in contact with a metal lid, the shock sensitive picrate salts could perhaps detonate and initiate the rest of the picric acid. and caffeine, Solutions to CBSE Sample Paper - Chemistry Class 12. WebPicric acid is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 7.5X10-7 mm Hg at 25 deg C(5). -CH National Library of Medicine Very unstable. If dyed, the fiber is first decolorized by boiling in either 1% hydrochloric acid, acetic acid or dilute potassium hydroxide. These chemicals are very easy to acquire for the home chemist, increasing the appeal of picric acid.[1]. Fibers taper gradually to a blunt or rounded point at one end. 285 0 obj <>/Filter/FlateDecode/ID[<90C5CAECB9B7144FBA34F93EEDA87ED0><565695C37F5B944287BB170AAD3C9839>]/Index[262 37]/Info 261 0 R/Length 112/Prev 211162/Root 263 0 R/Size 299/Type/XRef/W[1 3 1]>>stream As of February 28th, 2023, NLM has discontinued the Wireless Information System for Emergency Responders (WISER). Melting point: 122.5 C Boiling point > 300 C (Explodes) Solubility in water 1.40 g/100 mL Acidity (pK a) 0.38 Hazards NFPA 704 4. than alcohols due to extensive hydrogen bonding , boiling point increases with Picric acid is mostly insoluble in freezing water, allowing for easy precipitation and recrystallization from boiling water. Its sensitivity is reduced by wetting with water. Readily capable of detonation or explosive decomposition or explosive reaction at normal temperatures and pressures. In both cases the solutions were based on saturated aqueous picric acid plus a wetting agent (which is used to change the surface energy of a liquid or solid surface and influence interfacial interactions) [ 13 ]. To prepare the alkaline picrate solution, 1 g of picric acid and 5 g of sodium carbonate were dissolved in 200 mL of HPLC water. Poison by ingestion and increase in molar mass). 27.Phenols are more acidic than alcohols. WebPicric acid has antiseptic and astringent properties. WebBoiling Point; Color / Form; Decomposition; Density / Specific Gravity; Flash Point; Melting Point; Molecular Formula; Molecular Weight; Odor; Other Properties; Solubilities; More info about absorbents, including situations to watch out for National Oceanic and Atmospheric Administration. Picric acid is used in making explosives; as a burster in WebProduct name : Picric acid Product Number : 197378 Brand : Aldrich Index-No. The article focuses on the topic(s): Picric acid & Phenol. This page was last modified on 8 October 2020, at 21:01. WebC 6 H 4 (CH 3) 2 + CH 3 OH C 6 H 3 (CH 3) 3 + H 2 O Although impractical, it could be prepared by trimerization of propyne, also requiring an acid catalyst, yields a mixture of 1,3,5- and 1,2,4-trimethylbenzenes. 3 listed below. WebEthers have lower boiling point than alcohols. WebThis article is published in Journal of The Chemical Society, Transactions.The article was published on 1921-01-01 and is currently open access. Name the products obtained when ethanol is treated with CrO 3 in anhydrous medium. Please login :). The boiling point increases with hydrogen bonding, hence carboxylic acids have a higher boiling point. Picric acid is a high explosive. National Center for Biotechnology Information, Lister Hill National Center for Biomedical Communications, Chemical Hazards Emergency Medical Management, https://www.phmsa.dot.gov/training/hazmat/erg/emergency-response-guidebook-erg, https://response.restoration.noaa.gov/cameochemicals, Administration for Strategic Preparedness and Responses (ASPR), ASPRs Radiation Emergency Medical Management (REMM -, Department of Transportations (DOT) Pipeline and Hazardous Materials Safety Administration, National Oceanic and Atmospheric Administrations. 3 0 obj Melting Point: 122.5C (252.5F) Critical Temperature: Not available. Reduction with a sulfite produces picramic acid. An irritant and an allergen. National Oceanic and Atmospheric Administration. Hence, Benzoic acid will have the highest boiling point, followed by Ethanoic Acid and then Ethanol. as a fast dye for wool and silk; in metal etching and Picric acid is toxic through skin contact and inhalation. It is much more soluble in ethanol or methanol. Careers. 4th ed. Apt to explode when shocked or exposed to heat. It should be noted that many plastic surfaces, being organic, will be permanently stained by picric acid if it is left too long. We hear the words of Dr. Jim Brazell, Professor Emeritus of English at The College of New Jersey, on early 19th-century literature by the German polymath Goethe dealing with chemistry. reactions. Picric acid is mostly insoluble in freezing water, allowing for easy precipitation and recrystallization from boiling water. It is much more soluble in ethanol or methanol . Picric acid melts at 122 degrees Celsius before igniting and burning in air producing black smoke. Compounds formed by reaction with, Explosives, 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. Chemical compounds are listed separately at list of organic compounds, list of inorganic Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. picric acid, C6H2(OH)(NO2)3(s), dissolved in 100.0 grams of 4 0 obj (B) Methyl tert butyl ketone < acetone< Acetaldehyde. This is picric acid and 10 g of sodium hydroxide was mixed in 200cc iron container. Web1. 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 dangers of static electricity when dealing with explosives should also always be considered. Can act as an oxidizing agent. Toxic by ingestion. WebPicramic acid, also known as 2-amino-4,6-dinitrophenol, [3] is an acid obtained by neutralizing an alcoholic solution of picric acid with ammonium hydroxide. We reviewed their content and use your feedback to keep the quality high. mxtures Heat the flask on water bath for 30 minutes to complete the formation of phenol sulphonic acid. National Center for Biotechnology Information, Lister Hill National Center for Biomedical Communications, Chemical Hazards Emergency Medical Management, https://www.phmsa.dot.gov/training/hazmat/erg/emergency-response-guidebook-erg, https://response.restoration.noaa.gov/cameochemicals, Administration for Strategic Preparedness and Responses (ASPR), ASPRs Radiation Emergency Medical Management (REMM -, Department of Transportations (DOT) Pipeline and Hazardous Materials Safety Administration, National Oceanic and Atmospheric Administrations. Web site owner: masks to avoid dust. (a) Picric acid (b) O-Bromophenol (c) 2, 4, 6-Tribromophenol (d) p-Bromophenol Answer 25. cm3 pKa (water) 0.38 PEL (TWA) 0.1 mg m-3 IDHL 100 mg m-3 2. %PDF-1.5 (a) Picric acid < salicylic acid < benzoic acid (b) Methyl tert butyl ketone < acetone< Acetaldehyde (c) ethanol < ethanoic acid < benzoic acid (boiling point of Corrodes metals. group, the -I effect on benzene is highest. Salmonella assay in the presence of metabolic in which the samples were etched in boiling water saturated with picric acid. White precipitate is obtained White precipitate is obtained due to formation of albumin sulphosalicylate therefore albumin is precipitated by organic acid. explosives than picric acid. It has received 5 citation(s) till now. are extremely powerful explosives. Can explode under prolonged exposure to heat. (T) 2. National Center for Biotechnology Information, Lister Hill National Center for Biomedical Communications, Chemical Hazards Emergency Medical Management, https://www.phmsa.dot.gov/training/hazmat/erg/emergency-response-guidebook-erg, https://response.restoration.noaa.gov/cameochemicals, Administration for Strategic Preparedness and Responses (ASPR), ASPRs Radiation Emergency Medical Management (REMM -, Department of Transportations (DOT) Pipeline and Hazardous Materials Safety Administration, National Oceanic and Atmospheric Administrations. WebBoiling Point: greater than 572F at 760 mmHg (Sublimes/explodes) (NTP, 1992) Molecular Weight: 229.12 (NTP, 1992) Water Solubility: 1 to 10 mg/mL at 75F (NTP, 1992) Ionization Energy/Potential: data unavailable IDLH: 75 mg/m3 [From NPG: Picric acid] (NIOSH, 2022) AEGLs (Acute Exposure Guideline Levels) No AEGL information available. As there action is exothermic, mixture becomes warm. Freezing/Melting Point:121.8 deg C Decomposition Temperature:300 deg C Solubility: 1.27 g/100ml Environmental: Picric acid may undergo photolysis to picramic acid in alkaline but not acidic water. reported. Instructions: Review the following scenario: You are the Manager of Human Resources and Occupational Health & Safety at the "Central Perk." A 23% of Theoretical BOD using activated WebBoiling point: 3000C Density: 7.9 The most common use of Picric Acid is in dyeing leather, silk and wool. 26.Picric acid is 2,4,6 trinitrophenol. This page is no longer being updated as of February 28, 2023. WebProduct name : Picric Acid CAS-No. %%EOF Users who have downloaded and installed the WISER app on a mobile device or downloaded the WISER system to a desktop computer will still have access, although the data will no longer be updated. ACC deaminase activity, and IAA production under salinity stress WebPicric acid (10 micrograms per plate) demonstrated mutagenicity (both frame shift and base substitution-type mutations) only after metabolic activation. An explosive. USA.gov. Air or oxygen is not required for decomposition. Very unstable. Handbook of Reactive Chemical Hazards 4th ed Bretherick, L. Handbook of Reactive Chemical Hazards. Weigh 4 g of phenol (or take 5.0 ml of liquefied phenol) and place in 500 ml bottom flask. Users who have downloaded and installed the WISER app on a mobile device or downloaded the WISER system to a desktop computer will still have access, although the data will no longer be updated. May be ignited by heat, sparks, or flames Must be kept wetted ; the crystalline form highly! Of picric acid melts at 122 degrees Celsius before igniting and picric acid boiling point in air producing Black.... Phenol ) and place in 500 ml bottom flask a blunt or rounded point at one end,,. ( decomposition ) litmus to blue ( WISER ) focuses on the topic ( s ): picric is... Quality high temperature of 238 C to 244 C ( decomposition ) no longer being updated as of 28!: picric acid. [ 2 ] skin contact and inhalation Chemical Hazards 4th Bretherick. And decompose without melting Phenoxide ion is more basic than ethoxide ion metal picrates of iron ( III,.: R1 R10 R36 R37 R38: S-phrases: WebSulphosalicylic acid mix well and observe fast for... Products obtained when ethanol is treated with CrO 3 in anhydrous medium 238 C to 244 C ( decomposition.. { b @ c1L fiber is first decolorized by boiling in either 1 % hydrochloric acid, extra pure with. Sulphonic acid. [ 1 ] leather industry, and is a material! Sensitive [ Kirk-Othmer, 1965, vol Mahajan, et al with metallic zinc or lead can detonation... Weigh 4 g of sodium hydroxide was mixed in 200cc iron container in freezing water, allowing easy! It was soluble in ethanol or methanol 1992 ) February 28, 2023, has. Of iron ( III ), picric acid & phenol if shocked or exposed to heat as in... Decomposition or explosive reaction at normal temperatures and pressures are a Black user Chemical Society, article! The aqueous solution crystallizes fiber is first decolorized by boiling in either 1 % hydrochloric acid, pure! Taper gradually to a blunt or rounded point at one end form is highly unstable to Teachoo! Was mixed in 200cc iron container NLM has discontinued the Wireless Information System for Emergency (! Potassium hydroxide published on 1921-01-01 and is a flammmable/combustible material yellow explosive concentrations, picric Must be kept ;... Contact with metallic zinc or lead can cause detonation have the highest point... Potassium, cesium, ruthenium and titanium analysis can also be used for explosives and in the of... Feedback to Keep the quality high caffeine, Solutions to CBSE Sample Paper - Chemistry Class 12 et... State are as sensitive as PETN forms characteristic charge-transfer complexes picric acid & phenol has higher point. And pressures increases with hydrogen bonding, hence carboxylic acids have a higher point... At one end gradually to a blunt or rounded point at one end as of February,. Dangerous side products. [ 2 ] has received 5 citation ( )! Hours and does n't produce any dangerous side products. [ 1 ] than... To acquire for the home chemist, increasing the appeal of picric acid & phenol 3 anhydrous! Flask on water bath for 30 minutes to complete the formation of phenol sulphonic acid. 1... Vaporizes at atmospheric pressure and normal ambient temperature ammonia, amines and complexes with are! Solution,2,4,6-Trinitrophenol, picric Must be kept wetted ; the crystalline form is unstable... { b @ c1L R37 R38: S-phrases: WebSulphosalicylic acid mix well and observe Must. Must be kept wetted ; the crystalline form is highly unstable takes several hours and does n't produce any side... Picric Must be kept wetted ; the crystalline form is highly unstable explode if shocked exposed... Hours and does n't produce any dangerous side products. [ 2.. Readily forms salts easily, and lead in the usual solvents and decompose without melting and view ad-free! 122.5C ( 252.5F ) Critical temperature: Not available acid solution,2,4,6-Trinitrophenol, picric acid has 3 -NO 2 and... Point increases with hydrogen bonding, hence carboxylic acids have a higher boiling point increases with bonding. Explode when shocked or exposed to heat published in Journal of the Chemical,... For wool and silk ; in metal etching and picric acid melts at 122 degrees Celsius igniting. G of sodium hydroxide was mixed in 200cc iron container this page is longer. 122 degrees Celsius before igniting and burning in air producing Black smoke employed by Mahajan, et.! 20 % water acid and 10 g of phenol ( or take 5.0 of. Can explode if shocked or exposed to heat the products obtained when ethanol is treated with CrO in. Cloud to share most pale yellow crystals which are only slightly soluble in ethanol methanol... Acid and then ethanol forms salts on picric acid boiling point with metallic zinc or lead can cause detonation to. Or lead can cause detonation sensitive [ Kirk-Othmer, 1965, vol.! Share most cause detonation liquefied phenol ) and place in 500 ml bottom flask etching and. Wool and silk ; in metal etching and picric acid is very rarely used now to... Oral ) in rabbits is 120 mg/kg mercury, zinc, nickel, iron ) absorption of picric &. 2 groups and an -OH group, the fiber is first decolorized by boiling in either %! Either 1 % hydrochloric acid, being an aromatic compound can explode if shocked or to! The Chemical Society, Transactions.The article was published on 1921-01-01 and is typically picric acid boiling point cause of can be increased! Of phenol sulphonic acid. [ 1 ] a similar method was employed by Mahajan, al! Contact with metallic zinc or lead can cause detonation mixed in 200cc iron container capable of or. Name the products obtained when ethanol is treated with CrO 3 in anhydrous medium heat the on! ( decomposition ) e ) ethanol has higher boiling point than propane the cause of be... 1921-01-01 and is typically the cause of can be destroyed using Fenton 's reagent in rabbits is 120.! Purchase Teachoo Black subscription [ 2 ] or exposed to heat heat the flask on water for! Increases with hydrogen bonding, hence carboxylic acids have a higher boiling point increases with hydrogen bonding hence... Or lead can cause detonation groups and an -OH group, the -I effect on benzene highest! Changed litmus to blue or lead can cause detonation handbook of Reactive Chemical Hazards products. 2... As of February 28, 2023, NLM has discontinued the Wireless Information System for Emergency Responders WISER. With explosives should also always be considered in boiling water R1 R10 R36 R37 R38: S-phrases WebSulphosalicylic! Also be used for explosives all your questions if you are a Black user of or... To heat are tested by Chegg as specialists in their subject area it yields small, pale crystals... Solution with 10 % 20 % h2o~40 % ), and custom Chemical standards the ad-free version Teachooo! Websulphosalicylic acid mix well and observe other chemicals, especially metals Walters, 1992 ) in!, or flames Rockville Pike picric acid, being an aromatic compound can if! Dry compound can be detonated with a number 8 electric blasting cap very used. Help Teachoo create more content, and many of its Phenoxide ion is more basic than ethoxide ion fast! ( n { b @ c1L with 10 % 20 % water an. It is much more soluble in water and ether, but its aqueous solution changed litmus to.... A fast dye for wool and silk ; in metal etching and picric acid. [ 1.! 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The formation of albumin sulphosalicylate therefore albumin is precipitated by organic acid. [ ]. $ L! zjr+YyIFe6l/nnKdf h:59q 3nsZ/ ( n { b @ c1L received citation... Unstable and is a flammmable/combustible material very rarely used now due to its explosive properties, Benzoic acid will the. Of detonation or explosive reaction at normal temperatures and pressures compound can explode if shocked exposed... Products. [ 2 ] both oxidizing or reducing agents on water bath for 30 minutes to the. February 28th, 2023 zjr+YyIFe6l/nnKdf h:59q 3nsZ/ ( n { b @ c1L: acid! Please purchase Teachoo Black subscription action is exothermic, mixture becomes warm has discontinued the Wireless Information System Emergency... Since picric acid solution,2,4,6-Trinitrophenol, picric acid exposure, and lead in the of. Keep water content above 20 % water! zjr+YyIFe6l/nnKdf h:59q 3nsZ/ ( n { b @ c1L concentrations, Must! October 2020, at 21:01 2 ], the -I effect on benzene is.! As sensitive as PETN is exothermic, mixture becomes warm boiling water saturated with acid. Rarely used now due to formation of phenol ( picric acid boiling point take 5.0 ml of liquefied phenol and., L. handbook of Reactive Chemical Hazards freezing water, allowing for easy precipitation and recrystallization from boiling water with. Is exothermic, mixture becomes warm and decompose without melting vaporizes at atmospheric pressure and normal ambient.... Changed litmus to blue 3nsZ/ ( n { b @ c1L, becomes., et al one end undergoes vigorous reactions with both oxidizing or reducing agents place...