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         1. NIOSH Pocket Guide to Chemical Hazards
      Ethyl alcohol
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        Ethyl alcohol
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                Synonyms & Trade Names
                  Alcohol, Cologne spirit, Ethanol, EtOH, Grain alcohol
                CAS No.
                  64-17-5
                RTECS No.
                  KQ6300000
                DOT ID & Guide
                  1170 127
                Formula
                  CH₃CH₂OH
                Conversion
                  1 ppm = 1.89 mg/m3
                IDLH
                  3300 ppm [10%LEL]
                  See: 64175
                Exposure Limits
                  NIOSH REL
                  TWA 1000 ppm (1900 mg/m3)
                  OSHA PEL
                  TWA 1000 ppm (1900 mg/m3)
                Measurement Methods
                  NIOSH 1400;
                  OSHA 100
                  See: NMAM or OSHA Methods
                Physical Description
                  Clear, colorless liquid with a weak, ethereal, vinous odor.
                Molecular Weight
                  46.1
                Boiling Point
                  173°F
                Freezing Point
                  -173°F
                Solubility
                  Miscible
                Vapor Pressure
                  44 mmHg
                Ionization Potential
                  10.47 eV
                Specific Gravity
                  0.79
                Flash Point
                  55°F
                Upper Explosive Limit
                  19%
                Lower Explosive Limit
                  3.3%
                  Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
                Incompatibilities & Reactivities
                  Strong oxidizers, potassium dioxide, bromine pentafluoride, acetyl bromide, acetyl chloride, platinum, sodium
                Exposure Routes
                  inhalation, ingestion, skin and/or eye contact
                Symptoms
                  irritation eyes, skin, nose; headache, drowsiness, lassitude (weakness, exhaustion), narcosis; cough; liver damage; anemia; reproductive, teratogenic effects
                Target Organs
                  Eyes, skin, respiratory system, central nervous system, liver, blood, reproductive system
                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:Fresh air
                Swallow:Medical attention immediately
                Respirator Recommendations
                NIOSH/OSHA
                Up to 3300 ppm:
                (APF = 10) Any supplied-air respirator
                (APF = 50) Any self-contained breathing apparatus 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: 0044 MEDICAL TESTS: 0097
      Page last reviewed: October 30, 2019
        Content source: National Institute for Occupational Safety and Health
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