1,3,5-Trimethylbenzene |
Synonyms & Trade Names Mesitylene, Symmetrical trimethylbenzene, sym-Trimethylbenzene |
CAS No. 108-67-8 |
RTECS No. OX6825000 |
DOT ID & Guide 2325 129 |
FormulaC6H3(CH3)3 |
Conversion 1 ppm = 4.92 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 25 ppm (125 mg/m3)
OSHA PEL†: none |
Measurement Methods
OSHA PV2091
See: NMAM or OSHA Methods |
Physical Description Clear, colorless liquid with a distinctive, aromatic odor. |
MW: 120.2 |
BP: 329°F |
FRZ: -49°F |
Sol: 0.002% |
VP: 2 mmHg |
IP: 8.39 eV |
Sp.Gr: 0.86 |
Fl.P: 122°F |
UEL: ? |
LEL: ? |
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| Class II Flammable Liquid |
Incompatibilities & Reactivities Oxidizers, nitric acid |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat, respiratory system; bronchitis; hypochromic anemia; headache, drowsiness, lassitude (weakness, exhaustion), dizziness, nausea, incoordination; vomiting, confusion; chemical pneumonitis (aspiration liquid) |
Target Organs Eyes, skin, respiratory system, central nervous system, blood |
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Personal Protection/Sanitation (See protection codes)
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: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1155
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