4-CHLORO-1,1'-BIPHENYL

PRODUCT IDENTIFICATION
CAS NO. 2051-62-9

4-CHLORO-1,1'-BIPHENYL

EINECS NO.  
FORMULA C12H9Cl
MOL WT. 188.66
H.S. CODE  
TOXICITY  
SYNONYMS 4-Chlorobiphenyl; 4-Clorobifenilo;
p-Chlorobiphenyl; 4-Chlorodiphenyl; p-Chlorodiphenyl; 1-Chloro-4-phenylbenzene;   4-Chlorobiphényle;
SMILES 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE clear to yellowish crystalline powder
MELTING POINT 77 - 78 C
BOILING POINT 291 C
SPECIFIC GRAVITY

 

SOLUBILITY IN WATER  
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS Health: ; Flammability: ; Reactivity:
FLASH POINT

 

STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS
Biphenyl (also called Diphenyl, but exactly one of two compounds. The other is o-phenylphenol, used to prevent the growth of moulds ) is an aromatic hydrocarbon; molecule structure is composed of two six-sided carbon rings connected at one carbon site on each ring. Pure biphenyl is a toxic colourless crystalline solid with a pleasant odour; melting point 70 C, boiling point 255 C, which gives plates or monoclinic prismatic crystals; it is insoluble in water but soluble in ordinary organic solvents. It is directly used in the preservation of citrus fruits  as a fungistat in transportation containers. It is a raw material for polychlorinated diphenyls (PCB) in which chlorine replaces hydrogen in biphenyls. There are 209 chlorinated isomers of biphenyl theoretically. But PCBs are referred to the biphenyl compounds with one to ten chlorine substitutions. PCBs are used heat-transfer agents and as electric insulators that block the flow of electric current across in electrical equipments. They are known as environmental pollution materials which are accumulated in animal tissues and cause toxic effects including carcinogenesis. Biphenyl is used as an intermediate for the production of a wide range of organic compounds (e.g. emulsifiers, optical brighteners, crop protection products, plastics), as a heat transfer medium alone or with diphenyl ether in heating fluids, as a dyestuff carrier for textiles and copying paper and as a solvent in pharmaceutical production. Aminodiphenyls are used as rubber antioxidants and intermediates for the synthesis of organic compounds ( azo dyes and pharmaceuticals). Biphenyl derivatives are used as an intermediate for the synthesis of organic compounds including pharmaceuticals, antifungal agents, optical brightening agents and dyes. Biphenyl compounds also used in luminescence chemistry, spectrophotometric analysis, molecular chemistry, and as a stating material for organometallic-complexes.  4,4'-Bis(chloromethyl)-1,1'-biphenyl is used as an intermediate for optical brightening agents and pharmaceuticals.
SALES SPECIFICATION

APPEARANCE

 clear to yellowish crystalline powder
PURITY

98,0% min

ASH

0.5% max

TRANSPORTATION
PACKING  
HAZARD CLASS  
UN NO. 2315 (Packing Group: II)
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 26-36