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Sulfuric acid

Sulfuric acid Basic information
Description Uses Identification test Toxicity Hazards & Safety Information References
Product Name:Sulfuric acid
Product Categories:Refined & Fuming Sulfuric Acid(Oleum);Sulfur;Inorganics;Eluent concentrates for ICAlphabetic;Chromatography/CE Reagents;Ion Chromatography;S;SN - SZ;Inorganic AcidsAnalytical Reagents;Puriss;Acid solutionsVolumetric Solutions;Puriss p.a.;Q-S, Puriss p.a.;Acid ConcentratesConcentrates (e.g. FIXANAL);By Reference Material;Concentrates (e.g. FIXANAL);Reference Material Sodium carbonate;Titration;Acid SolutionsTitration;Inorganic AcidsVolumetric Solutions;Acid solutionsChemical Synthesis;Solution containers (VOLPAC);Volumetric Solutions;Acid solutions;Electronic Chemicals;Inorganic AcidsMicro/Nanoelectronics;Semiconductor Grade Chemicals;Trace Analysis ReagentsEssential Chemicals;Analytical Reagents;Atomic Absorption Spectroscopy (AAS);Digestion Reagents;Pure Reagents for Wet Digestion (Trace SELECT)Analytical/Chromatography;TraceSelect;Other Drying Agents;ACS GradeChemical Synthesis;Adsorbents, Filter Aids and Drying Agents;Inorganic AcidsEssential Chemicals;Analytical Reagents for General Use;Puriss p.a. ACS;Q-S, Puriss p.a. ACS;Acids&Bases;Essential Chemicals;Reagent Grade;Inorganic Acids;Chemical Synthesis;Synthetic Reagents;HPLC Buffer;HPLC Buffers;HPLC Buffers - SolutionDerivatization Reagents TLC;Organic Acids, Carboxylic AcidsChromatography/CE Reagents;SolutionDerivatization Reagents TLC;TLC Reagents, S-Z;TLC Visualization Reagents (alphabetic sort);TLC Visualization Reagents (by application);HPLC;Inorganic AcidsPesticides&Metabolites;AcidsChemical Synthesis;Herbicides;Micro/Nanoelectronics;TraceSelectUltraAtomic Absorption Spectroscopy (AAS);Ultrapure Reagents for Wet Digestion (Trace SELECTUltra);Decomposition Reagents;Special Applications;Sulphonic Acid
Mol File:7664-93-9.mol
Sulfuric acid Structure
Sulfuric acid Chemical Properties
Melting point 10°C
Boiling point ~290 °C(lit.)
density 1.840 g/mL at 25 °C(lit.)
vapor density <0.3 (25 °C, vs air)
vapor pressure 1 mm Hg ( 146 °C)
Fp 11 °C
storage temp. Store at RT.
solubility H2O: soluble
form Viscous Liquid
pka-3-2(at 25℃)
color Pale yellow to slight tan
Water Solubility miscible
Sensitive Hygroscopic
Merck 14,8974
Stability:Stable, but reacts with moisture very exothermically, which may enhance its ability to act as an oxidizing agent. Substances to be avoided include water, most common metals, organic materials, strong reducing agents, combustible materials, bases, oxidising agents. Reacts violently with water - when diluting concentrated acid, carefully and slo
CAS DataBase Reference7664-93-9(CAS DataBase Reference)
NIST Chemistry ReferenceSulfuric acid(7664-93-9)
EPA Substance Registry SystemSulfuric acid(7664-93-9)
Safety Information
Hazard Codes C,T,F,Xi
Risk Statements 36/38-35-39/23/24/25-23/24/25-11
Safety Statements 26-30-45-36/37-16
RIDADR UN 3264 8/PG 3
WGK Germany 1
RTECS WS5600000
HazardClass 8
PackingGroup II
HS Code 28070010
Hazardous Substances Data7664-93-9(Hazardous Substances Data)
MSDS Information
Sulfuric acid English
Sulfuric acid Usage And Synthesis
DescriptionSulfuric acid is one of the most widely used chemicals in industry, used in the production of nearly all manufactured goods. Its primary application is in the production of phosphoric acid, used to produce phosphate fertilizers, as well as ammonium sulfate, a nitrogen fertilizer important for use in sulfur-deficient soils. It is also used as a cleaning agent in the automotive, appliances, and other industries to “pickle” iron and steel - clean rust and impurities off its surface prior to processing - as well as to produce copper and zinc. It is used as a catalyst and additive in numerous other products, including petroleum refining, paper production, pharmaceutical production, acidic drain cleaners, batteries, dyes, pigments, detergents, explosives, pesticides, antifreeze, among many others. In addition, it is used to produce other chemicals including hydrochloric acid, nitric acid, sodium carbonate, and more.
Industry Application Role/benefit
Chemical manufacture Manufacture of hydrochloric acid, nitric acid, phosphoric acid and many other industrial chemicals Raw material
Fertilizers Manufacture of ammonium sulfate and aluminium sulfate Raw material
Hydrogen Sulfur-iodine cycle for hydrogen production Raw material/ no requirement of hydrocarbons
Cleaning Removing oxidation, rust and scaling from rolled sheet and billets Cleaning agent
Preparation of piranha solution (a powerful cleaning solution) Raw material
Acidic drain cleaners Main ingredient
Nylon manufacture Catalyzing the conversion of cyclohexanone oxime to caprolactam Acid catalyst
Petroleum refining SAAU or sulphuric acid Alkylation Unit
Electrochemistry Lead-acid batteries Electrolyte
Medicine Manufacture of alkylating antineoplastic agents Raw material
Manufacture of topical ointment called Debacterol Key ingredient
Others Potato Harvesting Spraying solution/helps to dry out the stem
Manufacture of Rayon Pcocessing reagent
Manufacture of explosives Component
Production of acid dyes Raw material/helps to set the color of the dye
Identification testIdentified according to GT-30 method.
ToxicityLD502.14 g/kg (rat, oral).  GRAS (FDA, §184.1095, 2000).
Refer to industrial sulfuric acid.
Hazards & Safety InformationCategory : Corrosive items
Toxicity classification  : high toxic
Acute toxicity :
Oral-Rat LD50: 2140 mg/kg; Inhalation-mouse LC50: 320 mg /m 3/2 h
Stimulation Data :  Eye-Rabbit 5 mg/30 sec Severe
Hazardous properties of explosives :  exploded after encounter with water; combustion-supporting after encounter with combustible; react with the metal to generate flammable explosive hydrogen
Flammable hazardous nature :  burned after encounter with organic matter; release combustible hydrogen after encounter with metal
Storage and transportation characteristics : ventilation; low-temperature; dry; stored separately with organic matter, reducing material and flammable materials
Extinguishing agent :  carbon dioxide, dry sand; prohibit the use of columnar water
Occupational Standard : TWA 1 mg /m3; STEL 3 mg /m3
Chemical PropertiesClear colorless oily liquid
DefinitionChEBI: A sulfur oxoacid that consits of two oxo and two hydroxy groups joined covalently to a central sulfur atom.
Air & Water ReactionsReaction with water is negligible unless acid strength is above 80-90% then heat from hydrolysis is extreme, may cause severe burns [Merck, 11th ed. 1989]. During sulfonation of mononitrobenzene by fuming Sulfuric acid , a leak from an internal cooling coil permitted water to enter the reaction tank. A violent eruption occurred due to the heat of solution [MCA Case History 944 1963].
Reactivity ProfileSulfuric acid is strongly acidic. Reacts violently with bromine pentafluoride [Mellor 2 Supp. 1:172 1956]. Exploded with para-nitrotoluene at 80 °C [Chem. Eng. News 27:2504]. An explosion occurred when concentrated Sulfuric acid was mixed with crystalline potassium permanganate in a vessel containing moisture. Manganese heptoxide was formed, which explodes at 70°C [Delhez 1967]. A mixture of acrylonitrile with concentrated Sulfuric acid must be kept well chilled, otherwise a vigorous exothermic reaction occurs [Chem. Safety Data Sheet SD-31:8. 1949]. Mixing Sulfuric acid (96%) in equal portions with any of the following substances in a closed container caused the temperature and pressure to increase: acetonitrile, acrolein, 2-aminoethanol, ammonium hydroxide (28%), aniline, n-butyraldehyde, chlorosulfonic acid, ethylene diamine, ethyleneimine, epichlorohydrin, ethylene cyanohydrin, hydrochloric acid (36%), hydrofluoric acid (48.7%), propiolactone, propylene oxide, sodium hydroxide, styrene monomer [NFPA 1991]. Sulfuric acid (concentrated) is extremely hazardous in contact with carbides, bromates, chlorates, fulminates, picrates, and powdered metals [Haz. Chem. Data 1966]. Allyl chloride may polymerize violently under conditions involving an acid catalyst, such as Sulfuric acid [Ventrone 1971]. React exothermically with sodium hypochlorite to produce chlorine gas. Mixing chloroSulfuric acid and 98% Sulfuric acid may evolve HCl [Subref: Anon, Loss Prev. Bull. 1977, (013), 2-3]. Zinc iodide reacts violently with H2SO4. (Pascal, 1962, Vol. 5, 168).
Health HazardCorrosive to all body tissues. Inhalation of vapor may cause serious lung damage. Contact with eyes may result in total loss of vision. Skin contact may produce severe necrosis. Fatal amount for adult: between 1 teaspoonful and one-half ounce of the concentrated chemical. Even a few drops may be fatal if the acid gains access to the trachea. Chronic exposure may cause tracheobronchitis, stomatitis, conjunctivitis, and gastritis. Gastric perforation and peritonitis may occur and may be followed by circulatory collapse. Circulatory shock is often the immediate cause of death. Those with chronic respiratory, gastrointestinal, or nervous diseases and any eye and skin diseases are at greater risk.
Fire HazardSulfuric acid is highly reactive and capable of igniting finely-divided combustible materials on contact. When heated, Sulfuric acid emits highly toxic fumes. Avoid heat; water and organic materials. Sulfuric acid is explosive or incompatible with an enormous array of substances. Can undergo violent chemical change at elevated temperatures and pressure. May react violently with water. When heated, Sulfuric acid emits highly toxic fumes. Hazardous polymerization may not occur.
Sulfuric acid Preparation Products And Raw materials
Raw materialsHydrochloric acid-->Hydrogen peroxide-->Sulfur-->Sulfur dioxide-->Sulphur-->Sulfur trioxide-->ROCK PHOSPHATE-->PYRITE-->CALCIUM SULFATE HEMIHYDRATE-->Microvoid filter film-->CHALCOPYRITE
Preparation ProductsCoumalic acid-->3,3'-DINITROBENZOPHENONE-->2-ethyl-5-nitrobenzenamine-->Methyl 3-bromo-4-methylbenzoate-->2,6-Dimethyl-3-nitropyridine-->ETHYL 3-BROMOBENZOATE-->2-NITROTHIOPHENE-4-CARBOXALDEHYDE-->Thiodiglycolic acid-->Conditioner for metal surface-->TITANIUM OXYSULFATE-->4-(N,N-Diethyl)-2-methyl-p-phenylenediamine monohydrochloride-->4-(N-Ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine sulfate-->1,1'-Oxydi-2-propanol-->N,N-Diethyl-p-phenylenediamine sulfate-->Sulfosalicylic acid -->Tricobalt tetraoxide-->2-HYDROXY-4-(TRIFLUOROMETHYL)QUINOLINE-->Dispersing agent DN-->Zirconium sulfate tetrahydrate-->2-METHYL-5-NITROBENZONITRILE-->6-Fluoro-4-(trifluoromethyl)-2(1H)-quinolinone-->2-NITROTHIOPHENE-4-CARBOXYLIC ACID-->2-Amino-3,6,8-naphthalenetrisulfonic acid-->4-CHLOROMETHYL-7-METHOXY-CHROMEN-2-ONE-->TRIETHYLENETETRAMINE DIHYDROCHLORIDE-->2-Amino-5-bromo-3-nitropyridine-->2,6-DIFLUORO-4-NITROANILINE-->4-Chloro-3,5-dinitrobenzoic acid-->1-BENZOTHIOPHENE-3-SULFONYL CHLORIDE-->tert-Amylbenzene -->2-Amino-5-nitro-4-picoline-->METHYL TRICOSANOATE-->4-NITRO-2-(TRIFLUOROMETHYL)BENZOIC ACID-->6-AMINO-5-METHYLPYRIDINE-3-SULFONIC ACID-->3-BROMOQUINOLINE-8-SULFONIC ACID-->Amikacin sulfate salt-->Amikacin disulfate salt -->Sesamol-->Vat Blue BC-->Sulfur-magnesium fertilizer
Tag:Sulfuric acid(7664-93-9) Related Product Information
PERCHLORIC ACID NA Sodium sulfate Ammonium sulfate Magnesium sulfate heptahydrate Ferrous sulfate heptahydrate METHYL ISOCYANOACETATE BENZYL ISOCYANIDE Ethyl isocyanoacetate N-BUTYLISOCYANIDE Tosylmethyl isocyanide 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE PHENYLSELENOL TERT-BUTYL ISOCYANIDE ASCORBICACID ACETIC ACID Citric acid Glycine