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Isopropyl ether

Synonyms & Trade Names
Diisopropyl ether, Diisopropyl oxide, 2-Isopropoxy propane
CAS No.
108-20-3
RTECS No.
TZ5425000
DOT ID & Guide
1159 127
Formula
(CH₃)₂CHOCH(CH₃)₂
Conversion
1 ppm = 4.18 mg/m3
IDLH
1400 ppm [10%LEL]
See: 108203
Exposure Limits
NIOSH REL
TWA 500 ppm (2100 mg/m3)
OSHA PEL
TWA 500 ppm (2100 mg/m3)
Measurement Methods
NIOSH 1618;
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a sharp, sweet, ether-like odor.
Molecular Weight
102.2
Boiling Point
154°F
Freezing Point
-76°F
Solubility
0.2%
Vapor Pressure
119 mmHg
Ionization Potential
9.20 eV
Specific Gravity
0.73
Flash Point
-18°F
Upper Exposive Limit
7.9%
Lower Explosive Limit
1.4%
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Strong oxidizers, acids [Note: Unstable peroxides may form on long contact with air.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose; resp discomfort; dermatitis; In Animals: drowsiness, dizziness, unconsciousness, 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:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH/OSHA

Up to 1400 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   ICSC CARD: 0906

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