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| Ethyl formate | CAS 109-94-4 | ||
| CH3CH2OCHO | RTECS LQ8400000 | ||
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Synonyms & Trade Names Ethyl ester of formic acid, Ethyl methanoate |
DOT ID & Guide 1190 129 |
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Exposure Limits |
NIOSH REL: TWA 100 ppm (300 mg/m3) | ||
| OSHA PEL: TWA 100 ppm (300 mg/m3) | |||
| IDLH 1500 ppm See: 109944 | Conversion 1 ppm = 3.03 mg/m3 | ||
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Physical Description Colorless liquid with a fruity odor. |
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MW: 74.1 |
BP: 130°F |
FRZ: -113°F |
Sol(64°F): 9% |
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VP: 200 mmHg |
IP: 10.61 eV |
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Sp.Gr: 0.92 |
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Fl.P: -4°F |
UEL: 16.0% |
LEL: 2.8% |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. | |||
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Incompatibilities & Reactivities Nitrates; strong oxidizers, alkalis & acids [Note: Decomposes slowly in water to form ethyl alcohol and formic acid.] |
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Measurement Methods NIOSH 1452; OSHA 7 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 1500 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)£/(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, upper respiratory system; in animals: narcosis | |
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Target Organs
Eyes, respiratory system, central nervous system |
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| See also: INTRODUCTION See ICSC CARD: 0623 |