Sulfuric acid (cas 7664-93-9) Molecular Structure

CAS No. 7664-93-9 (Sulfuric acid )

Molecular Formula: H2SO4Molecular Weight: 98.07

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  • Sulfuric acid 7664-93-9

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  • H2SO4 sulfuric acid production line / sulfuric acid 98%

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References of Sulfuric acid cas 7664-93-9

} Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LC50 inhalation 18mg/m3 (18mg/m3) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Medicina del Lavoro. Industrial Medicine. Vol. 45, Pg. 590, 1954.
human TCLo inhalation 1mg/m3/3H (1mg/m3) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Inhalation Toxicology. Vol. 9, Pg. 731, 1997.
human TCLo inhalation 3mg/m3/24W (3mg/m3) MUSCULOSKELETAL: CHANGES IN TEETH AND SUPPORTING STRUCTURES British Journal of Industrial Medicine. Vol. 18, Pg. 63, 1961.
man LDLo unreported 135mg/kg (135mg/kg)   "Poisoning; Toxicology, Symptoms, Treatments," 2nd ed., Arena, J.M., Springfield, IL, C.C. Thomas, 1970Vol. 2, Pg. 73, 1970.
mouse LC50 inhalation 320mg/m3/2H (320mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 107, 1982.
rat LC50 inhalation 510mg/m3/2H (510mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 107, 1982.
rat LD50 oral 2140mg/kg (2140mg/kg)   American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969.

Safety

Hazard Codes of Sulfuric acid (CAS NO.7664-93-9): CorrosiveC,ToxicT,FlammableF,IrritantXi
Risk Statements: 36/38-35-39-23/24/25-11 
R36/38: Irritating to eyes and skin. 
R35: Causes severe burns. 
R39: Danger of very serious irreversible effects. 
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed. 
R11: Highly flammable.
Safety Statements: 26-30-45-36/37-16 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S30: Never add water to this product. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/37: Wear suitable protective clothing and gloves. 
S16: Keep away from sources of ignition.
RIDADR: UN 3264 8/PG 3
WGK Germany: 1
RTECS: WS5600000
F: 3
HazardClass: 8
PackingGroup: II
HS Code: 28070010
Suspected human carcinogen when contained in strong inorganic mists. A human poison. Experimental poison by inhalation. Moderately toxic by ingestion. A severe eye irritant. Extremely irritating, corrosive, and toxic to tissue, resulting in rapid destruction of tissue, causing severe burns. If much of the skin is involved, exposure is accompanied by shock, collapse, and symptoms similar to those seen in severe burns. Repeated contact with dilute solutions can cause a dermatitis, and repeated or prolonged inhalation of a mist of sulfuric acid can cause inflammation of the upper respiratory tract, leading to chronic bronchitis. Sensitivity to sulfuric acid or its mists or vapors varies with individuals. Normally 0.125–0.50 ppm may be mildly annoying, 1.5–2.5 ppm can be definitely unpleasant, and 10–20 ppm is unbearable. Workers exposed to low concentrations of the vapor gradually lose their sensitivity to its irritating action. Inhalation of concentrated vapor or mists from hot acid or oleum can cause rapid loss of consciousness with serious damage to lung tissue. Severe exposure may cause a chemical pneumonitis; erosion of the teeth due to exposure to strong acid fumes has been recognized in industry. An experimental teratogen.

 

This is a very powerful acidic oxidizer that can ignite or explode on contact with many materials, e.g., acetic acid, acetone cyanhydrin, (acetone + HNO3), (acetone + K2Cr2O7), acetonitrile, acrolein, acrylonitrile, (acrylonitrile + H2O), (alcohols + H2O2), allyl alcohol, allyl chloride, NH4OH, 2-amino ethanol, NH4, triperchromate, aniline, (bromates + metals), BrF5, n-butyraldehyde, carbides, CoHC2, chlorates, (metals + chlorates), ClF3, chlorosulfonic acid, Cu3N, diisobutylene, (dimethyl benzylcarbinol + H2O2), epichlorohydrin, ethylene cyanhydrin, ethylene diamine, ethylene glycol, ethylene imine, fulminates, HCl, H2, IF7, (indene + HNO3), Fe, isoprene, Li6Si2, Hg3N2, mesityl oxide, metals, (HNO3 + glycerides), p-nitrotoluene, perchlorates, HClO4, (C6H6 + permanganates), pentasilver trihydroxydiamino phosphate, (1-phenyl-2-methyl propyl alcohol + H2O2), P, P(OCN)3, picrates, potassium-tert-butoxide, KClO3, KMnO4, (KMnO4 + KCl), (KMnO4 + H2O), β-propiolactone, RbHC2, propylene oxide, pyridine, Na, Na2CO3, NaOH, steel, styrene monomer, water, vinyl acetate, (HNO3 + toluene). When heated it emits highly toxic fumes; will react with water or steam to produce heat; can react with oxidizing or reducing materials. When heated to decomposition it emits toxic fumes of SOx. See also SULFATES.