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ETHYL FORMATE†
| CAS # | 109-94-4 | 
|---|---|
| Formula | C₃H₆O₂ | 
| Synonyms | ethyl ester of formic acid; ethyl methanoate | 
| Physical description | Colorless liquid with a fruity odor. | ||
|---|---|---|---|
| Boiling point | 130°F | Molecular weight | 74.1 | 
| Freezing point/melting point | -113°F | Vapor pressure | 200 mmHg | 
| Flash point | -4°F | Vapor density | |
| Specific gravity | 0.92 | Ionization potential | 10.61 eV | 
| Lower explosive limit (LEL) | 2.8% | Upper explosive limit (UEL) | 16.0% | 
| NFPA health rating | 2 | NFPA fire rating | 3 | 
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 1155 | 
|---|---|
| Sampling group | |
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] | 
| Sampling time* | |
| Sampling volume (TWA)* | 0.3-10 L | 
| Sampling flow rate (TWA)* | 0.01-0.2 L/min | 
| Sampling volume (STEL/Peak/C)* | 
 | 
| Sampling flow rate (STEL/Peak/C)* | 
 | 
| Analytical method instruments | GC-FID | 
| Method reference | NIOSH 1452 (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 | 100 ppm (300 mg/m³) | REL-TWA | 100 ppm (300 mg/m³) | TLV-TWA | 
 | PEL-TWA | 100 ppm (300 mg/m³) | 
| PEL-STEL | 
 | REL-STEL | 
 | TLV-STEL | 100 ppm [2011] | PEL-STEL | 
 | 
| PEL-C | 
 | REL-C | 
 | TLV-C | 
 | PEL-C | 
 | 
| Skin notation | N | Skin notation | N | Skin notation | N | Skin notation | N | 
| Notes: | Notes: 
 | Notes: 
 | Notes: 
 | ||||
| Health factors: See NIH-NLM PubChem. | IDLH | 1500 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 - Ethyl formate NIOSH: Pocket Guide to Chemical Hazards - Ethyl formate Literature References 
 | 
Last Updated Date : 12/28/2020
