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Glycidol

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Synonyms & Trade Names
2,3-Epoxy-1-propanol, Epoxypropyl alcohol, Glycide, Hydroxymethyl ethylene oxide, 2-Hydroxymethyl oxiran, 3-Hydroxypropylene oxide
CAS No.
556-52-5
RTECS No.
UB4375000
DOT ID & Guide
Formula
C₃H₆O₂
Conversion
1 ppm = 3.03 mg/m3
IDLH
150 ppm
See: 556525
Exposure Limits
NIOSH REL
TWA 25 ppm (75 mg/m3)
OSHA PEL
TWA 50 ppm (150 mg/m3) See Appendix G
Measurement Methods
NIOSH 1608;
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless liquid.
Molecular Weight
74.1
Boiling Point
320°F (Decomposes)
Freezing Point
-49°F
Solubility
Miscible
Vapor Pressure
(77°F): 0.9 mmHg
Ionization Potential
?
Specific Gravity
1.12
Flash Point
162°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Strong oxidizers, nitrates
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose, throat; narcosis
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

Up to 150 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:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0159
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health