Label abbreviations descriptions

1-NITROPROPANE†

Chemical Identification
CAS # 108-03-2
Formula
 

CH₃CH₂CH₂NO₂
Synonyms
 

nitropropane; 1-NP

Physical Properties
Physical description Colorless oily liquid with a somewhat disagreeable odor.
Boiling point 269°F Molecular weight 89.1
Freezing point/melting point -162°F Vapor pressure 8 mmHg
Flash point 96°F Vapor density 3.06
Specific gravity 1 Ionization potential 10.81 eV
Lower explosive limit (LEL) 2.2% Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 3
NFPA reactivity rating 2 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1940
Sampling group
Sampler/Sampling media XAD-4 tube (80/40 mg) [SKC 226-93]
Sampling time*
 

 
Sampling volume (TWA)*
 

4 L
Sampling flow rate (TWA)*
 

0.1 L/min
Sampling volume (STEL/Peak/C)*
 

 
Sampling flow rate (STEL/Peak/C)*
 

 
Analytical method instruments GC-FID
Method reference OSHA 46 (fully validated)
Notes
 

 
Special requirements
 

 

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
 

 
Bulk Method
 

 

On-Site Screening Techniques
Device organic vapor analyzer Infrared spectrophotometer
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions) 		4.8 ppm@12.5 µm

Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA
 

25 ppm (90 mg/m³)

 REL-TWA
 

25 ppm (90 mg/m³)

 TLV-TWA
 

25 ppm [1992]

 PEL-TWA
 

25 ppm (90 mg/m³)
PEL-STEL
 

 

 REL-STEL
 

 

 TLV-STEL
 

 

 PEL-STEL
 

 
PEL-C
 

 

 REL-C
 

 

 TLV-C
 

 

 PEL-C
 

 
Skin notation
 

N

 Skin notation
 

N

 Skin notation
 

N

 Skin notation
 

N
Notes:
 

See 29 CFR 1910.1000 Table Z-1.

 Notes:
 

 

 Notes:
 

 

 Notes:
 

 
Health factors:  See NIH-NLM PubChem. IDLH
 

1000 ppm
Carcinogenic classifications: TLV-A4 Notes:
 

 
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References

Last Updated Date : 12/15/2020