HazMat Tool — substance information
Phosphorus Pentafluoride
HMT 15 June 2026- UN / ID
- UN 2198
- Hazard class
- 2.3
- Packing group
- —
- ERG guide
- ERG 125
- Special provisions
- SP 2, SP B9, SP B14
- Source
- 49 CFR §172 (15 June 2026)
Phosphorus Pentafluoride
Phosphorus is a chemical element; it has symbol P and atomic number 15. All elemental forms of phosphorus are highly reactive and are therefore never found in nature. Elemental phosphorus can be prepared artificially, the two most common allotropes being white phosphorus and red phosphorus. With 31P as its only stable isotope, phosphorus has an occurrence in Earth's crust of about 0.1%, generally as phosphate rock Wikipedia
Substance Data
Source: PubChem (HSDB, 26.11.2019)CAS-Number7647-19-0 |
Flash Pointn/a | Boiling Pointn/a |
| Emergency Response Guide No. 125 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard Class2.3Poisonous gas |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(7) Special Provisions (§172.102)
|
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| 2 | |
|---|---|
| B9 | |
| B14 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 302, 304 | see 49 CFR §173.302, 304 |
| (8C) Bulk | 314, 315 | see 49 CFR §173.314, 315 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
Segregation chart for load, transport, and storage
This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.
Note: In this segregation and separation chart are HazMat of hazard class 2.3 considered depending on their poisonousness by inhalation (Hazard zone B). See special provision 2 and PHMSA Interpretation #09-0252.
| Hazard class | 8![]() | 7![]() | 6.1![]() | 5.2![]() | 5.1![]() | 4.3![]() | 4.2![]() | 4.1![]() | 3![]() | 2.3B![]() | 2.3A![]() | 2.2![]() | 2.1![]() | 1.6![]() | 1.5![]() | 1.4![]() | 1.3![]() | 1.1/1.2![]() |
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3 ![]() | ||||||||||||||||||
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7 ![]() | ||||||||||||||||||
8 ![]() |
| Must not be loaded, transported, or stored together in the same vehicle or facility. | |
| May be loaded, transported, or stored together. | |
| May be loaded, transported, or stored together only with restrictions. |