Methyl alcohol |
Synonyms & Trade Names Carbinol, Columbian spirits, Methanol, Pyroligneous spirit, Wood alcohol, Wood naphtha, Wood spirit |
CAS No. 67-56-1 |
RTECS No. PC1400000 |
DOT ID & Guide 1230 131 |
FormulaCH3OH |
Conversion 1 ppm = 1.31 mg/m3 |
IDLH 6000 ppm
See: 67561 |
Exposure Limits NIOSH REL: TWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin]
OSHA PEL†: TWA 200 ppm (260 mg/m3) |
Measurement Methods
NIOSH 2000 , 3800;
OSHA 91
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a characteristic pungent odor. |
MW: 32.1 |
BP: 147°F |
FRZ: -144°F |
Sol: Miscible |
VP: 96 mmHg |
IP: 10.84 eV |
Sp.Gr: 0.79 |
Fl.P: 52°F |
UEL: 36% |
LEL: 6.0% |
|
|
| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. |
Incompatibilities & Reactivities Strong oxidizers |
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 |
Target Organs Eyes, skin, respiratory system, central nervous system, gastrointestinal tract |
|
Personal Protection/Sanitation (See protection codes)
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 |
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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0057 See MEDICAL TESTS: 0137 |
