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p-tert-Butyltoluene |
CAS 98-51-1 | ||
(CH3)3CC6H4CH3 |
RTECS XS8400000 | ||
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Synonyms & Trade Names 4-tert-Butyltoluene, 1-Methyl-4-tert-butylbenzene |
DOT ID & Guide 2667 152 |
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Exposure
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NIOSH REL: TWA 10 ppm (60 mg/m3) ST 20 ppm (120 mg/m3) | ||
| OSHA PEL†: TWA 10 ppm (60 mg/m3) | |||
| IDLH 100 ppm See: 98511 | Conversion 1 ppm = 6.07 mg/m3 | ||
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Physical Description Colorless liquid with a distinct aromatic odor, somewhat like gasoline. |
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MW: 148.3 |
BP: 379°F |
FRZ: -62°F |
Sol: Insoluble |
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VP(77°F): 0.7 mmHg |
IP: 8.28 eV |
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Sp.Gr: 0.86 |
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Fl.P: 155°F |
UEL: ? |
LEL: ? |
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| Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F. | |||
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Incompatibilities & Reactivities Oxidizers |
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Measurement Methods NIOSH 1501; OSHA 7 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 |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 100 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, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin; dry nose, throat; headache; low blood pressure, tachycardia, abnormalities cardiovascular system stress; central nervous system, hematopoietic depression; metallic taste; liver, kidney injury | |
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Target Organs
Eyes, skin, respiratory system, cardiovascular system, central nervous system, bone marrow, liver, kidneys |
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| See also: INTRODUCTION See MEDICAL TESTS: 0034 |