35065-28-2

Basic information

• Product Name: 2,2',3,4,4',5'-HEXACHLOROBIPHENYL
• Synonyms: 2,2',3,4,4',5'-HEXACHLOROBIPHENYL;2,2',3,4,4,5'-HEXACHLOROBIPHENYL;2,2',3,4,4',5'-PCB;2,2',3,4,4',5-PCB;BALLSCHMITER NO 138;BZ NO 138;NO 138;PCB-138
• CAS NO: 35065-28-2
• Molecular Formula: C₁₂H₄Cl₆
• Molecular Weight: 360.88
• EINECS: 208-759-1
• Mol File: 35065-28-2.mol
• Article Data: 3

Chemical Properties

• Melting Point: 80°C
• Boiling Point: 446.99°C (rough estimate)
• Flash Point: -12 °C
• Appearance: /
• Density: 1.5940 (rough estimate)
• Refractive Index: 1.6270 (rough estimate)
• Storage Temp.: 2-8°C
• Water Solubility: 7.29ug/L(20 oC)
• BRN: 2508233
• CAS DataBase Reference: 2,2',3,4,4',5'-HEXACHLOROBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2',3,4,4',5'-HEXACHLOROBIPHENYL(35065-28-2)
• EPA Substance Registry System: 2,2',3,4,4',5'-HEXACHLOROBIPHENYL(35065-28-2)

Safety Data

• Hazard Codes: F,Xn,N
• Statements: 11-38-50/53-65-67-33
• Safety Statements: 16-60-61-62-35-33-29-9
• RIDADR: 2315
• WGK Germany: 3
• HazardClass: 9
• PackingGroup: II
• Hazardous Substances Data: 35065-28-2(Hazardous Substances Data)

Usage

General Description

2,2',3,4,4',5'-Hexachlorobiphenyl, also known as PCB 158, is a type of polychlorinated biphenyl (PCB) that is a highly toxic and persistent organic pollutant. It is a synthetic chemical that was widely used in a variety of industrial and commercial applications, including electrical equipment, hydraulic fluids, and heat transfer fluids. Its chemical structure consists of six chlorine atoms attached to a biphenyl molecule. PCB 158 is known for its potential to bioaccumulate in the environment and can have significant detrimental effects on human health and the environment. It has been associated with a range of health issues, including reproductive and developmental problems, immune system disorders, and cancer. As a result, the production and use of PCBs have been largely banned or severely restricted in many countries.

Upstream product

• 636-30-6 2,4,5-trichloroaniline 
• 120-82-1 1,2,4-Trichlorobenzene 

Downstream Products

• 83704-36-3 1,3,4,6,7-pentachlorodibenzofuran 

Relevant articles and documents

Reactivity features of polychlorobiphenyl congeners in the nucleophilic substitution reactions

Groups of congeners and individual congeners of polychlorobiphenyls contributing to the composition of the technical mixture "Sovol" (PCB 60, PCB 64, PCB 70, PCB 74, PCB 97, PCB 101, PCB 105, PCB 110, PCB 118, PCB 138, PCB 149, PCB 156, and PCB 163) were

Removal of dioxins and related aromatic hydrocarbons from flue gas streams by adsorption and catalytic destruction

The dioxin removing capacity of the shell dedioxin system (SDDS a - Ti/V oxidative type catalyst) has been tested using the Umefa lab-scale incinerator over the temperature range 100 -230°C and at space velocities of 8000 and 40,000 h-1. Other analogous organic compounds, such as PCBs, PAHs, chlorobenzenes and chlorophenols have also been investigated. Results show a high degree of dioxin removal already at 100°C (82%), which occurs mainly by adsorption. When the temperature is raised a transition towards destruction is seen and at 150°C, gas hour space velocity (GHSV) 8000 and at 230°C, GHSV 40,000 virtually all removal is by destruction. High PCDD/F destruction efficiencies are reported (> 99.9%, based on I-TEQ); the other dioxin-related species and PAHs are also removed and destroyed to a significant extent. The SDDS has proved to be an effective means of destroying organic compounds in the gas phase, particularly dioxins, at temperatures as low as 150°C.