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        The National Institute for Occupational Safety and Health (NIOSH)
        Centers for Disease Control and Prevention. CDC twenty four seven. Saving Lives, Protecting People
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          The National Institute for Occupational Safety and Health (NIOSH)
         1. NIOSH Pocket Guide to Chemical Hazards
      Indene
      Print
        Indene
            Related Pages
                Synonyms & Trade Names
                  Indonaphthene
                CAS No.
                  95-13-6
                RTECS No.
                  NK8225000
                DOT ID & Guide
                Formula
                  C₉H₈
                Conversion
                  1 ppm = 4.75 mg/m3
                IDLH
                  N.D.
                  See: IDLH INDEX
                Exposure Limits
                  NIOSH REL
                  TWA 10 ppm (45 mg/m3)
                  OSHA PEL
                  none See Appendix G
                Measurement Methods
                  None available
                  See: NMAM or OSHA Methods
                Physical Description
                  Colorless liquid. [Note: A solid below 29°F.]
                Molecular Weight
                  116.2
                Boiling Point
                  359°F
                Freezing Point
                  29°F
                Solubility
                  Insoluble
                Vapor Pressure
                  ?
                Ionization Potential
                  8.81 eV
                Specific Gravity
                  0.997
                Flash Point
                  173°F
                Upper Explosive Limit
                  ?
                Lower Explosive Limit
                  ?
                  Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
                Incompatibilities & Reactivities
                  None reported [Note: Polymerizes & oxidizes on standing. It has exploded during nitration with (H2SO4 + HNO3).]
                Exposure Routes
                  inhalation, ingestion, skin and/or eye contact
                Symptoms
                  In Animals: irritation eyes, skin, mucous membrane; dermatitis, skin sensitization; chemical pneumonitis (aspiration liquid); liver, kidney, spleen injury
                Target Organs
                  Eyes, skin, respiratory system, liver, kidneys, spleen
                Personal Protection/Sanitation
                (See protection codes)
                Skin:Prevent skin contact
                Eyes:Prevent eye contact
                Wash skin:Daily
                Remove:When wet or contaminated
                Change:No recommendation
                First Aid
                (See procedures)
                Eye:Irrigate immediately
                Skin:Soap wash
                Breathing:Respiratory support
                Swallow:Medical attention immediately
                Respirator Recommendations
                Not available.
                Important additional information about respirator selection
                See also
                INTRODUCTION
      Page last reviewed: October 30, 2019
        Content source: National Institute for Occupational Safety and Health
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          + A – NIOSH Potential Occupational Carcinogens
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          + C – Supplementary Exposure Limits
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          + G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
          + Type C & CE – Definitions for Type C and Type CE Respirators
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