35065-27-1

Basic information

• Product Name: 2,2',4,4',5,5'-HEXACHLOROBIPHENYL
• Synonyms: BZ NO 153;BALLSCHMITER NO 153;2,2',4,4',5,5'-PCB;2,2',4,4',5,5'-HEXACHLOROBIPHENYL;NO 153;PCB-153;PCB NO 153;2,2',4,4',5,5'-Hexachloro-1,1'-biphenyl
• CAS NO: 35065-27-1
• Molecular Formula: C₁₂H₄Cl₆
• Molecular Weight: 360.88
• EINECS: 208-759-1
• Product Categories: PCBsMethod Specific;2000/60/EC;Alphabetic;Aroclors, PCBs, and Dioxins;European Community: ISO and DIN;H;HA -HTEnvironmental Standards
• Mol File: 35065-27-1.mol
• Article Data: 8

Chemical Properties

• Melting Point: 137-138℃
• Boiling Point: 446.99°C (rough estimate)
• Flash Point: 100 °C
• Appearance: colourless liquid
• Density: 1.5940 (rough estimate)
• Refractive Index: 1.6270 (rough estimate)
• Storage Temp.: 2-8°C
• Water Solubility: 0.8625ug/L(25 oC)
• Stability: Thermally stable and resistant to both oxidation and biological degradation.
• BRN: 1990497
• CAS DataBase Reference: 2,2',4,4',5,5'-HEXACHLOROBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2',4,4',5,5'-HEXACHLOROBIPHENYL(35065-27-1)
• EPA Substance Registry System: 2,2',4,4',5,5'-HEXACHLOROBIPHENYL(35065-27-1)

Safety Data

• Hazard Codes: F,Xi,N,Xn
• Statements: 11-36/37/38-50/53-33-67-65-38
• Safety Statements: 16-26-33-36-61-60-35-62-29-9
• RIDADR: 2315
• WGK Germany: 3
• HazardClass: 9
• PackingGroup: II
• Hazardous Substances Data: 35065-27-1(Hazardous Substances Data)

Usage

Chemical Properties

(claimed on the NTP web site to be a colourless liquid

Upstream product

• 108-86-1 bromobenzene 
• 95-94-3 1,2,4,5-tetrachlorobenzene 
• 636-30-6 2,4,5-trichloroaniline 
• 120-82-1 1,2,4-Trichlorobenzene 
• 35065-29-3 2,2',3,4,4',5,5'-Heptachlorobiphenyl 
• 7145-82-6 2,4,5-trichloroiodobenzene 
• 15721-02-5 2,2',5,5'-tetrachloro-4,4'-diaminobiphenyl 

Downstream Products

• 2051-60-7 2-chloro-1,1'-biphenyl 
• 15862-07-4 2,4,5-trichlorobiphenyl 
• 33284-50-3 PCB 7 
• 70362-47-9 2,4,5,2'-tetrachlorobiphenyl 
• 92-52-4 biphenyl 
• 92-51-3 cyclohexylcyclohexane 
• 771-98-2 1-Phenylcyclohexene 
• 827-52-1 1-phenyl-1-cyclohexane 

Relevant articles and documents

Solvent extraction and tandem dechlorination for decontamination of soil

The United States Environmental Protection Agency (US EPA) guidelines allow removal of polychlorinated biphenyls (PCBs) from soils via solvent extraction. This option holds promise for removal of other recalcitrant organic contaminants as well. A study was undertaken to evaluate the effectiveness of solvent extraction with two tandem degradation techniques. The degradation techniques were chemical dehalogenation with immobilized reagents and γ-ray irradiation. The integrated approach was evaluated with contaminated soils from wood treatment and electric power substation sites. Evaluations were carried out on a bench scale in the laboratory and on a semi-pilot scale at a contaminated site. Binary solvent mixture of alkanes and alcohols yielded the highest extraction efficiencies. Extraction efficiencies in excess of 90% were obtained for PCBs, polychlorinated dibenzo-p-dioxins (PCDDs) and polynuclear aromatic hydrocarbons (PAHs). Extracted PCBs were rapidly degraded through chemical dehalogenation or with high doses of the γ-ray irradiation. The residual organics in the solvent mixture were removed with activated carbon, and the solvent was recycled for subsequent soil extractions. Contaminants adsorbed on the activated carbon were destroyed with a counter flow oxidation process.

METHOD FOR SEPARATING AND CLEANING UP POLYHALOGENATED BIPHENYLS

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

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.