sec-Amyl acetate

Synonyms & Trade Names

1-Methylbutyl acetate, 2-Pentanol acetate, 2-Pentyl ester of acetic acid

CAS No.

626-38-0

RTECS No.

AJ2100000

DOT ID & Guide

1104 129

Formula

CH₃COOCH(CH₃)C₃H₇

Conversion

1 ppm = 5.33 mg/m³

IDLH

1000 ppm
See: 626380

Exposure Limits

NIOSH REL

TWA 125 ppm (650 mg/m³)

OSHA PEL

TWA 125 ppm (650 mg/m³)

Measurement Methods

NIOSH 1450 , 2549;
OSHA 7
See: NMAM or OSHA Methods

Physical Description

Colorless liquid with a mild odor.

Molecular Weight

130.2

Boiling Point

249°F

Freezing Point

-109°F

Solubility

Slight

Vapor Pressure

7 mmHg

Ionization Potential

Specific Gravity

0.87

Flash Point

89°F

Upper Explosive Limit

7.5%

Lower Explosive Limit

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; narcosis; dermatitis; possible kidney, liver injury; possible central nervous system depression

Target Organs

Eyes, skin, respiratory system, kidneys, liver, 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 = 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

Important additional information about respirator selection

sec-Amyl acetate

NIOSH REL

OSHA PEL

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