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Methyl alcohol |
CAS 67-56-1 | ||
CH3OH |
RTECS PC1400000 | ||
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Synonyms & Trade Names Carbinol, Columbian spirits, Methanol, Pyroligneous spirit, Wood alcohol, Wood naphtha, Wood spirit |
DOT ID & Guide 1230 131 |
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Exposure
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NIOSH REL: TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin] | ||
| OSHA PEL†: TWA 200 ppm (260 mg/m3) | |||
| IDLH 6000 ppm See: 67561 | Conversion 1 ppm = 1.31 mg/m3 | ||
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Physical Description Colorless liquid with a characteristic pungent odor. |
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MW: 32.1 |
BP: 147°F |
FRZ: -144°F |
Sol: Miscible |
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VP: 96 mmHg |
IP: 10.84 eV |
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Sp.Gr: 0.79 |
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Fl.P: 52°F |
UEL: 36% |
LEL: 6.0% |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. | |||
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Incompatibilities & Reactivities Strong oxidizers |
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Measurement Methods NIOSH 2000, 3800; OSHA 91 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 (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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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 2000 ppm: (APF = 10) Any supplied-air respirator Up to 5000 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 6000 ppm: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode (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: 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, upper respiratory system; headache, drowsiness, dizziness, nausea, vomiting; visual disturbance, optic nerve damage (blindness); dermatitis | |
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Target Organs
Eyes, skin, respiratory system, central nervous system, gastrointestinal tract |
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| See also: INTRODUCTION See ICSC CARD: 0057 See MEDICAL TESTS: 0137 |