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Sulfuric acid |
CAS 7664-93-9 | ||
H2SO4 |
RTECS WS5600000 | ||
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Synonyms & Trade Names Battery acid, Hydrogen sulfate, Oil of vitriol, Sulfuric acid (aqueous) |
DOT ID & Guide 1830 137 1831 137 (fuming) 1832 137 (spent) |
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Exposure
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NIOSH REL: TWA 1 mg/m3 | ||
| OSHA PEL: TWA 1 mg/m3 | |||
| IDLH 15 mg/m3 See: 7664939 | Conversion | ||
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Physical Description Colorless to dark-brown, oily, odorless liquid. [Note: Pure compound is a solid below 51°F. Often used in an aqueous solution.] |
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MW: 98.1 |
BP: 554°F |
FRZ: 51°F |
Sol: Miscible |
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VP: 0.001 mmHg |
IP: ? |
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Sp.Gr: 1.84 (96-98% acid) |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid, but capable of igniting finely divided combustible materials. | |||
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Incompatibilities & Reactivities Organic materials, chlorates, carbides, fulminates, water, powdered metals [Note: Reacts violently with water with evolution of heat. Corrosive to metals.] |
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Measurement Methods NIOSH 7903; OSHA ID113, ID165SG See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash (>1%), Quick drench (>1%) |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 15 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£ (APF = 25) Any powered, air-purifying respirator with acid gas cartridge(s) in combination with a high-efficiency particulate filter£ (APF = 50) Any chemical cartridge respirator with a full facepiece and acid gas cartridge(s) in combination with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters. (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters. (APF = 50) Any self-contained breathing apparatus with a full facepiece (APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode (APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, nose, throat; pulmonary edema, bronchitis; emphysema; conjunctivitis; stomatis; dental erosion; eye, skin burns; dermatitis | |
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Target Organs
Eyes, skin, respiratory system, teeth |
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| See also: INTRODUCTION See ICSC CARD: 0362 See MEDICAL TESTS: 0218 |