# NIOSH Pocket Guide to Chemical Hazards
Glycerin (mist) | CAS 56-81-5
HOCH2CH(OH)CH2OH | RTECS MA8050000
Synonyms & Trade Names Glycerin (anhydrous); Glycerol; Glycyl alcohol; 1,2,3-Propanetriol; Trihydroxypropane | DOT ID & Guide
Exposure Limits | NIOSH REL: See Appendix D
OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH N.D. | Conversion
Physical Description Clear, colorless, odorless, syrupy liquid or solid (below 64°F). [Note: The solid form melts above 64°F but the liquid form freezes at a much lower temperature.]
MW: 92.1 | BP: 554°F (Decomposes) | MLT: 64°F | Sol: Miscible
VP(122°F): 0.003 mmHg | IP: ? |  | Sp.Gr: 1.26
Fl.P: 320°F | UEL: ? | LEL: ? |
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities Strong oxidizers (e.g., chromium trioxide, potassium chlorate, potassium permanganate) [Note: Hygroscopic (i.e., absorbs moisture from the air).]
Measurement Methods NIOSH 0500, 0600
Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Water wash Breathing: Fresh air
Respirator Recommendations To be added later
Exposure Routes inhalation, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; headache, nausea, vomiting; kidney injury
Target Organs Eyes, skin, respiratory system, kidneys
See also: INTRODUCTION