NIOSH Pocket Guide to Chemical Hazards

Diisopropylamine CAS 108-18-9
[(CH3)2CH]2NH RTECS IM4025000
Synonyms & Trade Names
DIPA, N-(1-Methylethyl)-2-propanamine
DOT ID & Guide
1158 132
Exposure
Limits
NIOSH REL: TWA 5 ppm (20 mg/m3) [skin]
OSHA PEL: TWA 5 ppm (20 mg/m3) [skin]
IDLH 200 ppm See: 108189 Conversion 1 ppm = 4.14 mg/m3
Physical Description
Colorless liquid with an ammonia- or fish-like odor.
MW: 101.2
BP: 183°F
FRZ: -141°F
Sol: Miscible
VP: 70 mmHg
IP: 7.73 eV

Sp.Gr: 0.72
Fl.P: 20°F
UEL: 7.1%
LEL: 1.1%

Class IB Flammable Liquid: Fl.P. below 73F and BP at or above 100F.
Incompatibilities & Reactivities
Strong oxidizers, strong acids
Measurement Methods
NIOSH S141 (II-4)
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact (>5%)
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Eyewash (>5%)
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 125 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)
Up to 200 ppm: (APF = 50) Any chemical cartridge respirator with a full facepiece and 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 = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator 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, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; nausea, vomiting; headache; visual disturbance
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION