# NIOSH Pocket Guide to Chemical Hazards
Propargyl alcohol | CAS 107-19-7
C3H3OH | RTECS UK5075000
Synonyms & Trade Names 1-Propyn-3-ol; 2-Propyn-1-ol; 2-Propynyl alcohol | DOT ID & Guide 1986 131
Exposure Limits | NIOSH REL: TWA 1 ppm (2 mg/m3) [skin]
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 2.29 mg/m3
Physical Description Colorless to straw-colored liquid with a mild, geranium odor.
MW: 56.1 | BP: 237°F | FRZ: -62°F | Sol: Miscible
VP: 12 mmHg | IP: 10.51 eV |  | Sp.Gr: 0.97
Fl.P(oc): 97°F | UEL: ? | LEL: ? |
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities Phosphorus pentoxide, oxidizers
Measurement Methods OSHA 97
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation skin, mucous membrane; central nervous system depression; in animals: liver, kidney damage
Target Organs Skin, respiratory system, central nervous system, liver, kidneys
See also: INTRODUCTION