16606-02-3

Basic information

• Product Name: 2,4',5-TRICHLOROBIPHENYL
• Synonyms: PCB-31;PCB NO 31;BALLSCHMITER NO 31;BZ NO 31;2,4',5-TRICHLOROBIPHENYL;2,4',5-PCB;2,4’,5-trichloro-1’-biphenyl;2,4’,5-trichloro-bipheny
• CAS NO: 16606-02-3
• Molecular Formula: C₁₂H₇Cl₃
• Molecular Weight: 257.54
• Mol File: 16606-02-3.mol
• Article Data: 6

Chemical Properties

• Melting Point: 67℃
• Boiling Point: 334.36°C (rough estimate)
• Appearance: /
• Density: 1.3510 (rough estimate)
• Refractive Index: 1.6040 (rough estimate)
• Water Solubility: 0.11mg/L(22.5 oC)
• CAS DataBase Reference: 2,4',5-TRICHLOROBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4',5-TRICHLOROBIPHENYL(16606-02-3)
• EPA Substance Registry System: 2,4',5-TRICHLOROBIPHENYL(16606-02-3)

Safety Data

• Hazard Codes: N,Xn
• Statements: 33-50/53
• Safety Statements: 35-60-61
• RIDADR: UN 3432 9/PG 2
• RTECS: DV8810000
• Hazardous Substances Data: 16606-02-3(Hazardous Substances Data)

Usage

Safety Profile

Moderately toxic byintraperitoneal route. Experimental reproductive effects.When heated to decomposition it emits toxic vapors ofClí.

Upstream product

• 106-46-7 para-dichlorobenzene 
• 673-41-6 p-chlorobenzenediazonium tetrafluoroborate 
• 94-17-7 bis(4-chlorobenzoyl)peroxide 
• 1435-50-3 2-bromo-1,4-dichlorobenzene 
• 1679-18-1 4-Chlorophenylboronic acid 
• 29682-41-5 2,5-dichloroiodobenzene 
• 89306-00-3 N,N'-(5-chloro-biphenyl-2,4'-diyl)-bis-acetamide 
• 637-87-6 1-Chloro-4-iodobenzene 
• 308817-89-2 2-(4'-aminophenyl)-4-chloroaniline 

Downstream Products

• 34883-43-7 2,4'-dichlorobiphenyl 
• 2974-90-5 3,4'-dichlorobiphenyl 
• 34883-39-1 2,5-dichlorobiphenyl 
• 92-52-4 biphenyl 

Relevant articles and documents

Regularities of Pd/C-catalyzed reduction of trichlorobiphenyls with 2-propanol in basic medium

Reduction of a series of trichlorobiphenyls with 2-propanol in basic medium catalyzed by Pd/C has been studied. Regioselectivity of the reduction has been determined. In the studied cases, the chlorine atom in para or meta positions of the more substituted ring has been more reactive. Using isotope labeling, it has been demonstrated that the reaction occurs via the stage of 2-propanol dehydration on palladium catalyst, followed by catalytic hydrogenation of the polychlorinated biphenyls.

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.

Photochemical behaviour of 1,4-dichlorobenzene in aqueous solution

Several photoproducts were identified in the direct photolysis of 1,4-dichlorobenzene (1,4-DCB) in air-saturated aqueous solution, namely 4-chlorophenol, hydroquinone, hydroxybenzoquinone, and 2,5-dichlorophenol. In the absence of oxygen the latter is not formed and phenol was detected, but the unexpected formations of 4,4′-dichlorobiphenyl, 2,4′,5-trichlorobiphenyl, and a terphenyl derivative are observed. Mechanisms are proposed to explain the formations of identified photoproducts. The phototransformation of 1,4-DCB may be photoinduced by NO3- or FeIII salts. The main primary product is 2,5-dichlorophenol, which results from a hydroxylation without dechlorination. Some other products have been identified in particular 4-chlorophenol and 2,5-dichlorobenzoquinone in the case of FeIII salts.