Label abbreviations descriptions

PROPIONALDEHYDE

Chemical Identification
CAS # 123-38-6
Formula
 

C₃H₆O
Synonyms
 

methylacetaldehyde; propanal; propionic aldehyde; propyl aldehyde

Physical Properties
Physical description A clear colorless liquid with an overpowering fruity odor.
Boiling point 120°F Molecular weight 58.08
Freezing point/melting point -114°F Vapor pressure 235 mmHg
Flash point 15°F Vapor density 2
Specific gravity 0.805 Ionization potential
Lower explosive limit (LEL) 2.9% Upper explosive limit (UEL) 17%
NFPA health rating 2 NFPA fire rating 3
NFPA reactivity rating 2 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) P129
Sampling group
Sampler/Sampling media XAD-2 tube (120/60 mg) coated with 10% 2-(hydroxymethyl)piperidine [SKC 226-118]
Sampling time*
 

 
Sampling volume (TWA)*
 

5 L
Sampling flow rate (TWA)*

0.05 L/min
Sampling volume (STEL/Peak/C)*
 

 
Sampling flow rate (STEL/Peak/C)*
 

 
Analytical method instruments GC-FID & GC-MS
Method reference NIOSH 2539 (partially validated)
Notes
 

 
Special requirements
 

 

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
 

 
Bulk Method
 

 

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA
 

 

 REL-TWA
 

 

 TLV-TWA
 

20 ppm [1998]

 PEL-TWA
 

 
PEL-STEL
 

 

 REL-STEL
 

 

 TLV-STEL
 

 

 PEL-STEL
 

 
PEL-C
 

 

 REL-C
 

 

 TLV-C
 

 

 PEL-C
 

 
Skin notation
 

NA

 Skin notation
 

NA

 Skin notation
 

N

 Skin notation
 

NA
Notes:
 

Not established

 Notes:
 

Not established

 Notes:
 

 

 Notes:
 

Not established
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Notes:
 

 
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References

Last Updated Date : 01/12/2023