5-Methyl-3-heptanone |
Synonyms & Trade Names Amyl ethyl ketone, Ethyl amyl ketone, 3-Methyl-5-heptanone |
CAS No. 541-85-5 |
RTECS No. MJ7350000 |
DOT ID & Guide 2271 128 |
FormulaC2H5COCH2CH(CH3)CH2CH3 |
Conversion 1 ppm = 5.24 mg/m3 |
IDLH 100 ppm
See: 541855 |
Exposure Limits NIOSH REL: TWA 25 ppm (130 mg/m3)
OSHA PEL: TWA 25 ppm (130 mg/m3) |
Measurement Methods
NIOSH 1301 , 2553
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a pungent odor. |
MW: 128.2 |
BP: 315°F |
FRZ: -70°F |
Sol: Insoluble |
VP: 2 mmHg |
IP: ? |
Sp.Gr: 0.82 |
Fl.P: 138°F |
UEL: ? |
LEL: ? |
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| Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F. |
Incompatibilities & Reactivities Strong oxidizers |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, mucous membrane; headache; narcosis, coma; dermatitis |
Target Organs Eyes, skin, respiratory system, central nervous system |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations NIOSH/OSHA Up to 100 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*
(APF = 25) Any powered, air-purifying respirator with 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 = 10) Any supplied-air respirator*
(APF = 50) Any self-contained breathing apparatus 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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1391
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