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CHLOROACETALDEHYDE (2-CHLOROETHANAL)†
| CAS # | 107-20-0 |
|---|---|
| Formula |
C₂H₃ClO |
| Synonyms |
chloroacetaldehyde (40% aqueous solution); 2-chloroacetaldehyde; 2-chloroethanal |
| Physical description | Colorless liquid with an acrid, penetrating odor. Typically found as a 40% aqueous solution. | ||
|---|---|---|---|
| Boiling point | 186°F | Molecular weight | 78.5 |
| Freezing point/melting point | 3°F (40% solution) | Vapor pressure | 100 mmHg |
| Flash point | 190°F (40% solution) | Vapor density | 2.7 |
| Specific gravity | 1.19 (40% solution) | Ionization potential | 10.61 eV |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 3 | NFPA fire rating | 2 |
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0617 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | Silica gel tube (520/260 mg) [SKC 226-15] |
| Sampling time* | |
| Sampling volume (TWA)* | 7.5 L |
| Sampling flow rate (TWA)* | 0.5 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-ECD |
| Method reference | OSHA 76 (fully 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 | PEL-TWA | ||||
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C |
1 ppm (3 mg/m³) |
REL-C |
1 ppm (3 mg/m³) |
TLV-C | PEL-C |
1 ppm (3 mg/m³) |
|
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: |
Notes:
Visit the ACGIH TLV site for specific data |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
45 ppm |
|||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - 2-Chloroethanal NIOSH: Pocket Guide to Chemical Hazards - Chloroacetaldehyde Literature References
|
Last Updated Date : 04/26/2024