HazMat Tool — substance information
Reference only — not a shipping paper, placard mandate, or CVI record.
Ethyl chloride
HMT 15 June 2026- UN / ID
- UN 1037
- Hazard class
- 2.1
- Packing group
- —
- ERG guide
- ERG 115
- Special provisions
- SP B77, SP N86, SP T50
- Source
- 49 CFR §172 (15 June 2026)
Ethyl chloride
Chloroethane, commonly known as ethyl chloride, is a chemical compound with chemical formula C2H5Cl or CH3CH2Cl, once widely used in producing tetraethyllead, a gasoline additive. It is a colorless, flammable gas or refrigerated liquid with a faintly sweet odor. Ethyl chloride was first synthesized by Basil Valentine by reacting ethanol and hydrochloric acid in 1440. Glauber made it in 1648 by reacting ethanol and zinc chloride Wikipedia
Substance Data
Source: PubChem (HSDB, 21.10.2026)CAS-Number75-00-3 |
Flash Point-50 ° C | Boiling Point12.5 ° C |
| Emergency Response Guide No. 115 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard class2.1Flammable gases |
(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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| B77 | |
|---|---|
| N86 | |
| T50 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 322 | see 49 CFR §173.322 |
| (8C) Bulk | 314, 315 | see 49 CFR §173.314, 315 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | 150 kg |
(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.
| 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![]() |
1.1/1.2 ![]() | ||||||||||||||||||
1.3 ![]() | ||||||||||||||||||
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1.5 ![]() | ||||||||||||||||||
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2.1 ![]() | ||||||||||||||||||
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2.3A ![]() | ||||||||||||||||||
2.3B ![]() | ||||||||||||||||||
3 ![]() | ||||||||||||||||||
4.1 ![]() | ||||||||||||||||||
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5.1 ![]() | ||||||||||||||||||
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6.1 ![]() | ||||||||||||||||||
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. |