PROPIONALDEHYDE
| CAS # | 123-38-6 |
|---|---|
| Formula |
C₃H₆O |
| Synonyms |
methylacetaldehyde; propanal; propionic aldehyde; propyl aldehyde |
| 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 | |||
| 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.
| Wipe Sampler/Sampling media | |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
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 |
|||||
|---|---|---|---|---|---|---|---|
| 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
|
NOAA: CAMEO Chemicals - Propionaldehyde NIOSH: Pocket Guide to Chemical Hazards - Propionaldehyde Literature References
|
Last Updated Date : 01/12/2023