NIOSH Pocket Guide to Chemical Hazards

2-Hydroxypropyl acrylate

CAS 999-61-1


RTECS AT1925000
Synonyms & Trade Names
HPA, beta-Hydroxypropyl acrylate, Propylene glycol monoacrylate
DOT ID & Guide


NIOSH REL: TWA 0.5 ppm (3 mg/m3) [skin]
OSHA PEL: none
IDLH N.D. See: IDLH INDEX Conversion 1 ppm = 5.33 mg/m3
Physical Description
Clear to light-yellow liquid wiith a sweetish, solvent odor.
MW: 130.2
BP: 376°F
FRZ: ?
Sol: ?
VP: ?
IP: ?

Sp.Gr: 1.05
Fl.P: 149°F
UEL: ?
LEL: 1.8%

Class IIIA Combustible Liquid: Fl.P. at or above 140F and below 200F.
Incompatibilities & Reactivities
Water [Note: Can become unstable at high temperatures & pressures or may react with water with some release of energy, but not violently.]
Measurement Methods
None available
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
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: Soap flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
Respirator Recommendations Not available.
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; eye, skin burns; cough, dyspnea (breathing difficulty)
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION   See ICSC CARD: 0899