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Methyl alcohol																				Related Pages
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 ppmSee: 67561

Exposure Limits
			NIOSH RELTWA 200 ppm (260 mg/m3) ST 250 ppm (325 mg/m3) [skin]
					OSHA PEL TWA 200 ppm (260 mg/m3) See Appendix G
	Measurement Methods
			**NIOSH** 2000 , 3800;**OSHA** 91
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid with a characteristic pungent odor.													
										
Molecular Weight32.1	
	Boiling Point147°F
	Freezing Point-144°F
	SolubilityMiscible
	Vapor Pressure96 mmHg
	Ionization Potential10.84 eV											
Specific Gravity0.79	
	Flash Point52°F
	Upper Explosive Limit36%
	Lower Explosive Limit6.0%
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
					  ICSC CARD: 0057
					  MEDICAL TESTS: 0137

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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