# NIOSH Pocket Guide to Chemical Hazards
Ethylene glycol | CAS 107-21-1
HOCH2CH2OH | RTECS KW2975000
Synonyms & Trade Names 1,2-Dihydroxyethane; 1,2-Ethanediol; Glycol; Glycol alcohol; Monoethylene glycol | DOT ID & Guide
Exposure Limits | NIOSH REL: See Appendix D
OSHA PEL†: none
IDLH N.D. | Conversion
Physical Description Clear, colorless, syrupy, odorless liquid. [antifreeze] [Note: A solid below 9°F.]
MW: 62.1 | BP: 388°F | FRZ: 9°F | Sol: Miscible
VP: 0.06 mmHg | IP: ? |  | Sp.Gr: 1.11
Fl.P: 232°F | UEL: 15.3% | LEL: 3.2% |
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities Strong oxidizers, chromium trioxide, potassium permanganate, sodium peroxide [Note: Hygroscopic (i.e., absorbs moisture from the air).]
Measurement Methods NIOSH 5523; OSHA PV2024
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily | First Aid (See procedures) Eye: Irrigate immediately Skin: Water wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat; nausea, vomiting, abdominal pain, lassitude (weakness, exhaustion); dizziness, stupor, convulsions, central nervous system depression; skin sensitization
Target Organs Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION