# NIOSH Pocket Guide to Chemical Hazards
sec-Hexyl acetate | CAS 108-84-9
C8H16O2 | RTECS SA7525000
Synonyms & Trade Names 1,3-Dimethylbutyl acetate; Methylisoamyl acetate | DOT ID & Guide 1233 129
Exposure Limits | NIOSH REL: TWA 50 ppm (300 mg/m3)
OSHA PEL: TWA 50 ppm (300 mg/m3)
IDLH 500 ppm | Conversion 1 ppm = 5.90 mg/m3
Physical Description Colorless liquid with a mild, pleasant, fruity odor.
MW: 144.2 | BP: 297°F | FRZ: -83°F | Sol: 0.08%
VP: 3 mmHg | IP: ? |  | Sp.Gr: 0.86
Fl.P: 113°F | UEL: ? | LEL: ? |
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities Nitrates; strong oxidizers, alkalis & acids
Measurement Methods NIOSH 1450; OSHA 7
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA Up to 500 ppm: (APF = 10) Any chemical cartridge 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 = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)*/(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
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat; headache; in animals: narcosis
Target Organs Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION