Isoamyl acetate

Synonyms & Trade Names

Banana oil, Isopentyl acetate, 3-Methyl-1-butanol acetate, 3-Methylbutyl ester of acetic acid, 3-Methylbutyl ethanoate

CAS No.

123-92-2

RTECS No.

NS9800000

DOT ID & Guide

1104 129

Formula

CH₃COOCH₂CH₂CH(CH₃)₂

Conversion

1 ppm = 5.33 mg/m³

IDLH

1000 ppm
See: 123922

Exposure Limits

NIOSH REL

TWA 100 ppm (525 mg/m³)

OSHA PEL

TWA 100 ppm (525 mg/m³)

Measurement Methods

NIOSH 1450;
OSHA 7
See: NMAM or OSHA Methods

Physical Description

Colorless liquid with a banana-like odor.

Molecular Weight

130.2

Boiling Point

288°F

Freezing Point

-109°F

Solubility

0.3%

Vapor Pressure

4 mmHg

Ionization Potential

Specific Gravity

0.87

Flash Point

77°F

Upper Explosive Limit

7.5%

Lower Explosive Limit

(212°F): 1.0%

Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.

Incompatibilities & Reactivities

Nitrates; strong oxidizers, alkalis & acids

Exposure Routes

inhalation, ingestion, skin and/or eye contact

Symptoms

irritation eyes, skin, nose, throat; dermatitis; In Animals: narcosis

Target Organs

Eyes, skin, respiratory system, central nervous system

Personal Protection/Sanitation

(See protection codes)
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 promptly
Breathing:Respiratory support
Swallow:Medical attention immediately

Respirator Recommendations

NIOSH/OSHA

Up to 1000 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

Isoamyl acetate

NIOSH REL

OSHA PEL

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