Catechol |
Synonyms & Trade Names 1,2-Benzenediol; o-Benzenediol; 1,2-Dihydroxybenzene; o-Dihydroxybenzene; 2-Hydroxyphenol; Pyrocatechol |
CAS No. 120-80-9 |
RTECS No. UX1050000 |
DOT ID & Guide |
FormulaC6H4(OH)2 |
Conversion 1 ppm = 4.50 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 5 ppm (20 mg/m3) [skin]
OSHA PEL†: none |
Measurement Methods
OSHA PV2014
See: NMAM or OSHA Methods |
Physical Description Colorless, crystalline solid with a faint odor. [Note: Discolors to brown in air & light.] |
MW: 110.1 |
BP: 474°F |
MLT: 221°F |
Sol: 44% |
VP(244°F): 10 mmHg |
IP: ? |
Sp.Gr: 1.34 |
Fl.P: 261°F |
UEL: ? |
LEL: 1.4% |
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| Combustible Solid |
Incompatibilities & Reactivities Strong oxidizers, nitric acid |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, respiratory system; skin sensitization, dermatitis; lacrimation (discharge of tears), burns eyes; convulsions, increased blood pressure, kidney injury |
Target Organs Eyes, skin, respiratory system, central nervous system, kidneys |
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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: Daily
Provide: Eyewash |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0411
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