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| Cumene | CAS 98-82-8 | ||
| C6H5CH(CH3)2 | RTECS GR8575000 | ||
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Synonyms & Trade Names Cumol, Isopropyl benzene, 2-Phenyl propane |
DOT ID & Guide 1918 130 |
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Exposure Limits |
NIOSH REL: TWA 50 ppm (245 mg/m3) [skin] | ||
| OSHA PEL: TWA 50 ppm (245 mg/m3) [skin] | |||
| IDLH 900 ppm [10%LEL] | Conversion 1 ppm = 4.92 mg/m3 | ||
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Physical Description Colorless liquid with a sharp, penetrating, aromatic odor. |
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MW: 120.2 |
BP: 306°F |
FRZ: -141°F |
Sol: Insoluble |
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VP: 8 mmHg |
IP: 8.75 eV |
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Sp.Gr: 0.86 |
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Fl.P: 96°F |
UEL: 6.5% |
LEL: 0.9% |
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| Class IC Flammable Liquid: Fl.P. at or above 73�F and below 100�F. | |||
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Incompatibilities & Reactivities Oxidizers, nitric acid, sulfur acid [Note: Forms cumene hydroperoxide upon long exposure to air.] |
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Measurement Methods NIOSH 1501 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 500 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*/(APF = 10) Any supplied-air respirator* Up to 900 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)*/(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(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 organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, mucous membrane; dermatitis; headache, narcosis, coma | |
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Target Organs
Eyes, skin, respiratory system, central nervous system |
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| See also: INTRODUCTION |