PCB NO 149 - Names and Identifiers
Name | 2,2',3,4',5',6-HEXACHLOROBIPHENYL
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Synonyms | PCB-149 BZNO 149 PCB NO 149 1,1'-BIPHENYL,2,2',3,4',5',6- 2,2',3,4',5',6-HEXACHLOROBIPHENYL 2,2',3,4',5',6-Hexachloro-1,1'-biphenyl 1,1'-Biphenyl, 2,2',3',4,5,6'-hexachloro 223456HEXACHLOROBIPHENYL(2,2',3,4',5',6-ISOMER)
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CAS | 38380-04-0
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PCB NO 149 - Physico-chemical Properties
Molecular Formula | C12H4Cl6
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Molar Mass | 360.88 |
Density | 1.5940 (rough estimate) |
Melting Point | 115.76°C (estimate) |
Boling Point | 446.99°C (rough estimate) |
Refractive Index | 1.6270 (rough estima |
PCB NO 149 - Risk and Safety
Hazard Symbols | N - Dangerous for the environment

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Risk Codes | R33 - Danger of cumulative effects
R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
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Safety Description | S35 - This material and its container must be disposed of in a safe way.
S60 - This material and its container must be disposed of as hazardous waste.
S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
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UN IDs | UN 3432 9/PG 2 |
RTECS | DV5343500 |
PCB NO 149 - Introduction
2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL is an organic compound with the chemical formula C12H6Cl6. The following is a description of its nature, use, formulation and safety information:
Nature:
- 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL is a colorless crystal, soluble in organic solvents such as toluene and dichloromethane.
-It has good chemical stability and does not react under most common chemical conditions.
-Because of its high stability and persistence, it is classified as a persistent organic pollutant (POPs).
Use:
- 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL has been widely used as an insulating agent and coolant in the electronics industry, such as transformers and capacitors.
-Due to the nature of its persistent organic pollutants, it has now been banned or restricted, and its use has been greatly reduced.
Preparation Method:
- 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL can be prepared by chlorinating benzene, and 6-chlorobiphenyl can be obtained by heating and reacting benzene and aluminum chloride, then, through multiple chlorination reactions, aluminum chloride is added to the reaction system, and the chlorination reaction is carried out sequentially, so that 2,2',3,4 ',5',6-HEXACHLOROBIPHENYL can be obtained.
Safety Information:
- 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL is a toxic substance with potential carcinogenicity and teratogenicity.
-When using and handling 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL, appropriate safety measures must be taken, such as wearing protective gloves, face masks and glasses.
-During storage and transportation, relevant laws and regulations must be observed to ensure that it will not cause harm to the environment and human body.
IMPORTANT:
-Due to the high toxicity and environmental hazards of 2,2 ',3,4',5 ',6-HEXACHLOROBIPHENYL, personal or unauthorized use and handling are prohibited.
-For any problems related to this substance, the guidance and advice of professional chemical experts or relevant institutions should be consulted.
Last Update:2024-04-10 22:29:15