NIOSH Pocket Guide to Chemical Hazards

n-Butylamine CAS 109-73-9
CH3CH2CH2CH2NH2 RTECS EO2975000
Synonyms & Trade Names
1-Aminobutane, Butylamine
DOT ID & Guide
1125 132
Exposure
Limits
NIOSH REL: C 5 ppm (15 mg/m3) [skin]
OSHA PEL: C 5 ppm (15 mg/m3) [skin]
IDLH 300 ppm Conversion 1 ppm = 2.99 mg/m3
Physical Description
Colorless liquid with a fishy, ammonia-like odor.
MW: 73.2
BP: 172°F
FRZ: -58°F
Sol: Miscible
VP: 82 mmHg
IP: 8.71 eV

Sp.Gr: 0.74
Fl.P: 10°F
UEL: 9.8%
LEL: 1.7%

Class IB Flammable Liquid: Fl.P. below 73F and BP at or above 100F.
Incompatibilities & Reactivities
Strong oxidizers, strong acids [Note: May corrode some metals in presence of water.]
Measurement Methods
NIOSH 2012
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 50 ppm: (APF = 10) Any chemical cartridge respirator with cartridge(s) providing protection against the compound of concern*/(APF = 10) Any supplied-air respirator*
Up to 125 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 25) Any powered, air-purifying respirator with cartridge(s) providing protection against the compound of concern*
Up to 250 ppm: (APF = 50) Any chemical cartridge respirator with a full facepiece and cartridge(s) providing protection against the compound of concern/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and cartridge(s) providing protection against the compound of concern*/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece
Up to 300 ppm: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
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 canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat; headache; skin flush, burns
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION