NIOSH Pocket Guide

Acrylic acid

CAS

79-10-7

CH2=CHCOOH

RTECS

AS4375000

Synonyms & Trade Names


Acroleic acid, Aqueous acrylic acid (technical grade is 94%), Ethylenecarboxylic acid, Glacial acrylic acid (98% in aqueous solution), 2-Propenoic acid

DOT ID & Guide
 

2218 132P (inhibited)

Exposure
Limits

NIOSH REL: TWA 2 ppm (6 mg/m3) [skin]
OSHA PEL†: none
IDLH

N.D.

Conversion

1 ppm = 2.95 mg/m3

Physical Description
 

Colorless liquid or solid (below 55°F) with a distinctive, acrid odor. [Note: Shipped with an inhibitor (e.g., hydroquinone) since it readily polymerizes.]

MW: 72.1
 
BP: 286°F
 
FRZ: 55°F
 
Sol: Miscible
 
VP: 3 mmHg
 
IP: ?
 

 
Sp.Gr: 1.05
 
Fl.P: 121°F
 
UEL: 8.02%
 
LEL: 2.4%
 

 
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities


Oxidizers, amines, alkalis, ammonium hydroxide, chloro-sulfonic acid, oleum, ethylene diamine, ethyleneimine, 2-aminoethanol [Note: Corrosive to many metals.]

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


Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
 

Respirator Recommendations

Not available.
 

Exposure Routes

inhalation, skin absorption, ingestion, skin and/or eye contact

Symptoms

Irritation eyes, skin, respiratory system; eye, skin burns; skin sensitization; in animals: lung, liver, kidney injury

Target Organs

Eyes, skin, respiratory system
 

Fuente: U.S. Department of Health and Human Services

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