p-tert-Butyltoluene
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CAS
98-51-1
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(CH3)3CC6H4CH3
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RTECS
XS8400000
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Synonyms & Trade Names
4-tert-Butyltoluene, 1-Methyl-4-tert-butylbenzene
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DOT ID & Guide
2667 / 152
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Exposure
Limits
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NIOSH REL: TWA 10 ppm (60 mg/m3) ST 20 ppm (120 mg/m3)
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OSHA PEL†: TWA 10 ppm (60 mg/m3)
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IDLH
100 ppm
See: 98511
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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
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BP: 379°F
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FRZ: -62°F
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Sol: Insoluble
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VP(77°F): 0.7 mmHg
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IP: 8.28 eV
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Sp.Gr: 0.86
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Fl.P: 155°F
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UEL: ?
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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 |
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
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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 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
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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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
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