Hexachlorobutadiene
CAS 87-68-3
EC 201-765-5
Formula C4Cl6
MW 260.76 g/mol
Solvents Lubricants & MetalworkingOil, Gas & Energy Solvent & Carrier
Description
Hexachlorobutadiene (CAS 87-68-3) is a fully chlorinated butadiene compound, also known by the abbreviations HCBD and HCB, and referenced under trade designations including Perchlorobutadiene and C 46. It carries no assigned E-code. It is classified under HS code 29032990 within the halogenated hydrocarbon family.
In lubricant formulation, HCBD functions as a high-density solvent carrier, providing chemical stability under elevated thermal and mechanical stress conditions. In oil and gas processing, it has been used as a solvent medium where resistance to chlorinated process streams is required. Its low reactivity with many industrial substrates makes it suitable as a carrier in specific metalworking fluid systems.
HCBD is supplied as a neat liquid and is subject to REACH regulation within the European Union, where it is listed as a substance of very high concern due to its PBT classification. Procurement teams should confirm current authorisation status and applicable restrictions before sourcing. Packaging formats and available grades are confirmed at point of enquiry.
In lubricant formulation, HCBD functions as a high-density solvent carrier, providing chemical stability under elevated thermal and mechanical stress conditions. In oil and gas processing, it has been used as a solvent medium where resistance to chlorinated process streams is required. Its low reactivity with many industrial substrates makes it suitable as a carrier in specific metalworking fluid systems.
HCBD is supplied as a neat liquid and is subject to REACH regulation within the European Union, where it is listed as a substance of very high concern due to its PBT classification. Procurement teams should confirm current authorisation status and applicable restrictions before sourcing. Packaging formats and available grades are confirmed at point of enquiry.
Physical Properties
| Melting Point | -21 °C |
| Boiling Point | 215 °C @ Press: 760 Torr |
| Density | 1.556 g/cm³ @ Temp: 25 °C |
| Flash Point | 210-220°C |
| Appearance | Hexachlorobutadiene is a clear, colorless liquid with a faint, turpentine-like odor. |
| Odor | faint turpentine odor |
| Form | neat |
| Water Solubility | (mg/L): 4.78 at 25 °C (shake flask-LSC, Banerjee et al., 1980) 4 at 20–25 °C (Geyer et al., 1980) |
| Vapor Pressure | 0.2 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.555(lit.) |
Safety & Handling (Learn More)
Danger GHS05 GHS06 GHS07 GHS08 GHS09
H
H227H301H302H310H312H315H317H318H319H330H332H341H351H361H370H371H372H400H410
P
P203P210P260P261P262P264P270P271P272P273P280P284P316P317P318P319P320P321P330P391P403P405P501P264+P265P301+P316P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P337+P317P361+P364P362+P364P370+P378P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29032990 |
| UN Number | 2279 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 3 |
Other Names
1,1,2,3,4,4-hexachlorobuta-1,3-dieneHCBDHCBC 46PERCHLORBUTADIENEPerchlorobutadieneButadiene, hexachloro-
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