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.�; '"aw Material Safety Data SheetNo.3oA from Genium's Reference Collection P —� Cianium Publishing Caporation HYDROCHLORIC ACID'4 1145 Own street (Revision B) t _ Scita,ectadY.IJY 13303-1836 USA Issued• October 1977 518 3774855 GRAMUN ruwamo cow. Revised: November 1988 SECTI -27 ON.>L :<IViA3'ERIAL.:IDENTIFICATION , Material Name: HYDROCHLORIC ACID O DFN escription(Origin/IJaes):Used in the production of chlorides;in refining ore in the production of do and tantalum; 3 0 c O ntralizationof ;for pickling and cleaning metal products;for oil-and gas-well treatments,and in removing . -exchanS equipmeaL NFPA Odler Designations:Aqueous Hydrogm Chloride;Mmiatic Acid;HC�O-.CAS No.7647-01-0 H 13 R 1 Mannfaetarer• Contact your supplier or distributor.Consult the latest adition of the Chanieahmsk F 0R 0 Buyers'Grods(Genium ref.73)for a list of suppliers. PPG S 4 *See sect E K 0 SECTION 2.INGREDIENTS AND HAZARDSrib :'`>;' :EXPOSURE LIMITS Hydrogen Chloride,CAS No.7647-01-0 38 or Leas OSHA PEL 5 ppm.7 mg/m' Water ACGIH TLV.198949 Balance• TLV-CaftS:S ppm.7 mgtmh •impurities such as iron.chlorine,ad traces of organic matter may be Toxicity Data•• present in small amounts,depending on the grade of acid. Human,Inhalation,LC :1300 ppm(30 Mins) See NIOSH,RTECS(MW4025000),for additional data with references to Rat,Inhalation,LC - �24 ppm(1 Hr) reproductive and mutagenic effects.Continue m monitor NIOSH,RTECS Rabbit,Oral,LD„:'900 mg/kg (MW40300000),for toxicity data on hydrochloric acid itself. SECTION 3. PHYSICAL :DATA Bolling Point: 2277F(109'C)(20.22%) Molecular Weight Not Applicable Mel Point: -857(-65'C)(20.69%) Solubility in Water (%): Complete Vapor Density(Air a 1): 1.268 Specific Gray t0 : i): >1 pH: Strong Mineral Acid %Volatile by Volume: Ca 100 Appearance and Odor: A clear,colorless-to-lightly yellowed,fuming liquid;sharp,pungent,characteristic.irritating odor of hydrogen chloride gas.This odor is detectable at 1 to S ppm and becomes unpleuant and bTiutWVt at S to 10 ppm;boweva.the odor saves as a good waning property. Comments: The specific physical properties of aqueous bdrochloacid solutions vary with the amount of dissolved hydrogen chloride gas.Hydrochloric acid forma constant boiling azeotrope�aric mixture of hydrochloric acid and water that behaves like a single substance in that its vapor has the same composition as the mixture itself)with water(at 227-F or 109'C)that contains 20.22%hydrogen chloride and has a density of 1.0%.Boiling weaker or monger aqueous solutions results in the loss of either component until the constant boiling acid is produced. SECTION 4. FIRE AND EXPLOSION DATA L : UEL Flash Point and Method Autoignition Temperature Extinguishing Media: *Hydrochloric acid solutions do not burn.Use extinguishing agents that will put out the surrounding fire.Unusual Fire or Explosion Hazards: Use a water spray to cool fart-exposed containers of hydrochloric acid to prevent ruptures.Explosive hydrogen Sas can be produced by the reaction of hydrochloric acid with metals such as iron.Neutralize spilled hydrochloric acid with limestone,slaked lime,a soda ash to minimi"the possible generation of hydrogen gas.Special Ftre-flgbting Procedures: Wear a self-contained breathing apparatus(SCBA)with a full facepiece operated in the pressure-demand or positive-pressure mode.Special neutralization procedures,if applicable,include the application of ebemically basic substances such as soda ash or slaked lime. SECTION S. REACTIVITY DATA Stabillty/Polymerization: Hydrochloric acid is stable in dosed containers during routine operations at room tempaaturt.Hazardous polym- erizatiou cannot occur.Chemical Incompatibilities: Hydrochloric acid reacts dangerously with acetic anhydride,2-aminoethanol,ammo- nium hydroxide,calcium phosphide,chlorosulfonic acid,ethylene diamine,ethylenimine,oleum6 perchloric acid,&propiolactone,propylene oxide,silver perchlorate and carbon tetrachloride,sodium hydroxide.sulfuric acid.uranium phosphide,vinyl acetate.sodium and many carbide compounds(Onium ref.84).This material is a strong mineral acid that is very reactive with balm.Conditions to Avoid: Avoid exposure to incompatible chemicals and to any other material whose compatibility with hydrochloric acid or its vapor has not yet been i established.The corrosive action of hydrochloric acid on most metals can Liberate extremely flammable/explosive hydrogen gar(1i,);piping systems and containment systems must be chosen carefully.Hazardous Products of Decomposition: During foes hydrochloric acid may decompose by reacting with certain metals to produce very flammable and explosive hydrogen Su(H).Significant amounts of hydrogen chloride gar(HCI)we given off at room temperature;the rate of this generation increases as the tempaature and the strength(I%)by weight of HCl in H2O increase.Comments Reactions between hydrochloric acid and cyanides,sulfides,and formaldehyde.will produce extremely wx,.:,y.irogen cyanide(HCH hydrogen sulfide(HS).sulf ur dio,.ide(Sed),and bimliloromethylether.respectively. cer"I e I m o®prbtabos oapomm