Propionic acid |
Synonyms & Trade Names Carboxyethane, Ethanecarboxylic acid, Ethylformic acid, Metacetonic acid, Methyl acetic acid, Propanoic acid |
CAS No. 79-09-4 |
RTECS No. UE5950000 |
DOT ID & Guide 1848 132 |
FormulaCH3CH2COOH |
Conversion 1 ppm = 3.03 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 10 ppm (30 mg/m3) ST 15 ppm (45 mg/m3)
OSHA PEL†: none |
Measurement Methods
None available
See: NMAM or OSHA Methods |
Physical Description Colorless, oily liquid with a pungent, disagreeable, rancid odor. [Note: A solid below 5°F.] |
MW: 74.1 |
BP: 286°F |
FRZ: 5°F |
Sol: Miscible |
VP: 3 mmHg |
IP: 10.24 eV |
Sp.Gr: 0.99 |
Fl.P: 126°F |
UEL: 12.1% |
LEL: 2.9% |
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| Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F. |
Incompatibilities & Reactivities Alkalis, strong oxidizers (e.g., chromium trioxide) [Note: Corrosive to steel.] |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; blurred vision, corneal burns; skin burns; abdominal pain, nausea, vomiting |
Target Organs Eyes, skin, respiratory system |
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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
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0806
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