Arsine
HMT 15 June 2026- UN / ID
- UN 2188
- Hazard class
- 2.3
- Packing group
- n/a (multiple — see tabs)
- ERG guide
- ERG 119
- Special provisions
- SP 1
- Source
- 49 CFR §172 (15 June 2026)
Arsine
Arsine (IUPAC name: arsane) is an inorganic compound with the formula AsH3. This flammable, pyrophoric, and highly toxic pnictogen hydride gas is one of the simplest compounds of arsenic. Despite its lethality, it finds some applications in the semiconductor industry and for the synthesis of organoarsenic compounds. The term arsine is commonly used to describe a class of organoarsenic compounds of the formula AsH3−xRx, where R = aryl or alkyl Wikipedia
Substance Data
Source: PubChem (HSDB, 27.11.2019)CAS-Number7784-42-1 |
Flash Pointn/a | Boiling Pointn/a |
| Emergency Response Guide No. 119 |
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)
|
||||||||||
| 1 |
|---|
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 192 | see 49 CFR §173.192 |
| (8C) Bulk | 245 | see 49 CFR §173.245 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
(3) Hazard ClassForbidden |
(4) Identification number |
(5) Packing Group |
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(6) Labels n/a |
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(7) Special Provisions (§172.102)
|
|||||||||||
(8) Packing Authorizations (§173.***)
|
|||||||||||
| (8A) Exceptions | n/a | see 49 CFR §173. n/a |
|---|---|---|
| (8B) Non-bulk | n/a | see 49 CFR §173. n/a |
| (8C) Bulk | n/a | see 49 CFR §173. n/a |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | n/a |
|---|---|
| (9B) Cargo aircraft only | n/a |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other | n/a |
(3) Hazard Class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
|||||||||
(7) Special Provisions (§172.102)
|
|||||||||
| T6 | |
|---|---|
| TP33 | |
| W31 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 201 | see 49 CFR §173.201 |
| (8C) Bulk | None |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
(3) Hazard Class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
||||||||||||||||||
(6) Labels |
||||||||||||||||||||
(7) Special Provisions (§172.102)
|
||||||||||||||||||||
| 2 | |
|---|---|
| B9 | |
| B14 | |
| B32 | |
| T20 | |
| TP2 | |
| TP13 | |
| TP38 | |
| TP45 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 227 | see 49 CFR §173.227 |
| (8C) Bulk | 244 | see 49 CFR §173.244 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
(3) Hazard Class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
||||||||||||
(6) Labels |
||||||||||||||
(1) Symbols |
||||||||||||||
| 2 | |
|---|---|
| T20 | |
| TP4 | |
| TP13 | |
| TP38 | |
| TP45 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 192 | see 49 CFR §173.192 |
| (8C) Bulk | None |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
Packing group comparison
Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.
| PG n/a | PG n/a | PG I | PG I | PG I | |
|---|---|---|---|---|---|
| 1 | D | ||||
| 2 | Arsine | Dichlorovinylchloroarsine | Diphenylamine chloroarsine | Ethyldichloroarsine | Methyldichloroarsine |
| 3 | 2.3 | Forbidden | 6.1 | 6.1 | 6.1 |
| 4 | UN 2188 | n/a | UN 1698 | UN 1892 | NA 1556 |
| 5 | n/a | n/a | I | I | I |
| 6 | 2.3, 2.1 | n/a | 6.1 | 6.1 | 6.1 |
| 7 | 1 | n/a | T6, TP33, W31 | 2, B9, B14, B32, T20, TP2, TP13, TP38, TP45 | 2, T20, TP4, TP13, TP38, TP45 |
| 8A | None | n/a | None | None | None |
| 8B | 192 | n/a | 201 | 227 | 192 |
| 8C | 245 | n/a | None | 244 | None |
| 9A | Forbidden | n/a | Forbidden | Forbidden | Forbidden |
| 9B | Forbidden | n/a | Forbidden | Forbidden | Forbidden |
| 10A | D | n/a | D | D | D |
| 10B | 40 | n/a | 40 | 40 | 40 |
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.
Scope & sources (important)Click to show CFR references
This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):
- §177.834 - General requirements
- §177.835 - Class 1 materials
- §177.837 - Class 3 materials
- §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
- §177.839 - Class 8 (corrosive) materials
- §177.840 - Class 2 (gases) materials
- §177.841 - Division 6.1 and Division 2.3 materials
- §177.842 - Class 7 (radioactive) material
- §177.843 - Contamination of vehicles
Similar substances
| UN / ID | Proper shipping name | Hazard class |
|---|---|---|
| UN 1698 | Diphenylamine chloroarsine | 6.1 |
| UN 1699 | Diphenylchloroarsine, liquid | 6.1 |
| UN 3450 | Diphenylchloroarsine, solid | 6.1 |
| Dichlorovinylchloroarsine | Forbidden | |
| UN 1892 | Ethyldichloroarsine | 6.1 |

