2-AMINOPYRIDINE†
Chemical Identification | |
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CAS # | 504-29-0 |
Formula |
C₅H₆N₂ |
Synonyms |
α-aminopyridine; α-pyridylamine |
Physical Properties | |||
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Physical description | White powder, leaflets, or crystals with a characteristic odor. | ||
Boiling point | 411°F | Molecular weight | 94.1 |
Freezing point/melting point | 137°F | Vapor pressure | 0.8 mmHg at 77°F |
Flash point | 198°F | Vapor density | |
Specific gravity | Ionization potential | 8.00 eV | |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | NFPA fire rating | ||
NFPA reactivity rating | NFPA special instruction | ||
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | 0165 | |||||
Sampling group | ||||||
Sampler/Sampling media | 2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004] | |||||
Sampling time* | 240 min |
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Sampling volume (TWA)* | 240 L |
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Sampling flow rate (TWA)* | 1 L/min |
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Sampling volume (STEL/Peak/C)* | ||||||
Sampling flow rate (STEL/Peak/C)* | ||||||
Analytical method instruments | GC-NPD | |||||
Method reference | OSHA PV2143 (partially validated) | |||||
Notes | ||||||
Special requirements |
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* 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.
Wipe Method | |
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Sampler/Sampling media |
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Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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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 |
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PEL-TWA |
0.5 ppm (2 mg/m³) |
REL-TWA |
0.5 ppm (2 mg/m³) |
TLV-TWA |
0.5 ppm [1966] |
PEL-TWA |
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PEL-STEL |
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REL-STEL |
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TLV-STEL |
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PEL-STEL |
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PEL-C |
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REL-C |
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TLV-C |
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PEL-C |
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Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Notes: |
Notes:
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Notes:
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Notes:
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Health factors: See NIH-NLM PubChem. | IDLH |
5 ppm |
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Carcinogenic classifications: |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - 2-Aminopyridine NIOSH: Pocket Guide to Chemical Hazards - 2-Aminopyridine Literature References
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Last Updated Date : 01/28/2021