Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Enter search terms separated by spaces.

n-Propyl nitrate

Synonyms & Trade Names
Propyl ester of nitric acid
CAS No.
627-13-4
RTECS No.
UK0350000
DOT ID & Guide
1865 131
Formula
CH3CH2CH2ONO2
Conversion
1 ppm = 4.30 mg/m3
IDLH
500 ppm
See: 627134
Exposure Limits
NIOSH REL
: TWA 25 ppm (105 mg/m3) ST 40 ppm (170 mg/m3)
OSHA PEL
†: TWA 25 ppm (110 mg/m3)
Measurement Methods

NIOSH S227 (II-3);
OSHA 7
See: NMAM or OSHA Methods
Physical Description
Colorless to straw-colored liquid with an ether-like odor.
MW:
105.1
BP:
231°F
FRZ:
-148°F
Sol:
Slight
VP:
18 mmHg
IP:
11.07 eV
Sp.Gr:
1.07
Fl.P:
68°F
UEL:
100%
LEL:
2%
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Strong oxidizers, combustible materials [Note: Forms explosive mixtures with combustible materials.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
In animals: irritation eyes, skin; methemoglobinemia, anoxia, cyanosis; dyspnea (breathing difficulty), lassitude (weakness, exhaustion), dizziness, headache
Target Organs
Eyes, skin, blood
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 250 ppm:
(APF = 10) Any supplied-air respirator

Up to 500 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(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 canister providing protection against the compound of concern¿
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1513   See MEDICAL TESTS: 0198
 

Order NIOSH Publications

Contact Us:
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO