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2,2',3,4,4',5'-Hexachlorobiphenyl, commonly referred to as PCB 158, is a member of the polychlorinated biphenyl (PCB) family. It is a synthetic chemical compound characterized by its highly toxic and persistent nature as an organic pollutant. PCB 158 features a biphenyl molecule with six chlorine atoms attached, which contributes to its stability and potential for bioaccumulation in the environment. 2,2',3,4,4',5'-Hexachlorobiphenyl was once extensively utilized in various industrial and commercial applications such as electrical equipment, hydraulic fluids, and heat transfer fluids. However, due to its association with severe health and environmental impacts, including reproductive and developmental issues, immune system disorders, and cancer, the production and use of PCBs like PCB 158 have been largely prohibited or strictly regulated in many countries.

35065-28-2

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35065-28-2 Usage

Uses

Given the hazardous nature of 2,2',3,4,4',5'-Hexachlorobiphenyl, its uses have been significantly curtailed. However, historically, it was employed in several industrial applications for specific reasons:
Used in Electrical Industry:
PCB 158 was used as a dielectric fluid in transformers and capacitors due to its high thermal stability, excellent electrical insulating properties, and resistance to arcing.
Used in Hydraulic Fluids:
In the hydraulic fluids industry, PCB 158 served as a fluid for heat transfer and power transmission, leveraging its chemical stability and low volatility.
Used in Heat Transfer Fluids:
PCB 158 was utilized as a heat transfer medium in various industrial processes, capitalizing on its thermal conductivity and high boiling point.

Check Digit Verification of cas no

The CAS Registry Mumber 35065-28-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,5,0,6 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 35065-28:
(7*3)+(6*5)+(5*0)+(4*6)+(3*5)+(2*2)+(1*8)=102
102 % 10 = 2
So 35065-28-2 is a valid CAS Registry Number.

35065-28-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,2,3-trichloro-4-(2,4,5-trichlorophenyl)benzene

1.2 Other means of identification

Product number -
Other names 2,2',3,4,4',5'-Hexachlorobiphenyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:35065-28-2 SDS

35065-28-2Relevant academic research and scientific papers

Reactivity features of polychlorobiphenyl congeners in the nucleophilic substitution reactions

Gorbunova,Pervova,Saloutin,Chupakhin

experimental part, p. 138 - 143 (2012/06/04)

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

METHOD FOR SEPARATING AND CLEANING UP POLYHALOGENATED BIPHENYLS

-

Page/Page column 20-26, (2008/06/13)

The method for separating and cleaning up polyhalogenated biphenyls (PHBs) is characterized by comprising the following three steps: (1) the step of bringing a sample containing PHBs into contact with a fibrous activated carbon; (2) the step of washing the fibrous activated carbon with hexanes; and (3) the step of eluting PHBs from the fibrous activated carbon.

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

Liljelind, Per,Unsworth, John,Maaskant, Onno,Marklund, Stellan

, p. 615 - 623 (2007/10/03)

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.

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