2-FLUOROBIPHENYL

PRODUCT IDENTIFICATION

CAS NO. 321-60-8

2-FLUOROBIPHENYL

EINECS NO. 204-317-5
FORMULA C12H9F
MOL WT. 172.20

H.S. CODE

 
TOXICITY  
SYNONYMS 2-Fluorodiphenyl; o-Fluorobiphenyl; 2-Fluoro-1,1'-biphenyl;
DERIVATION  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white to off-white crystalline powder
MELTING POINT 71 - 74 C
BOILING POINT 248 C
SPECIFIC GRAVITY 1.352
SOLUBILITY IN WATER Insoluble (Soluble in ethanol, ether, chloroform)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

Health: 1; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT  
STABILITY stable under ordinary conditions

GENERAL DESCRIPTION AND 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.
SALES SPECIFICATION

APPEARANCE

white to off-white crystalline powder

ASSAY

99.0% min

MELTING POINT

72 - 75 C

TRANSPORTATION

PACKING  
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: , Risk Phrases: , Safety Phrases: 22-24/25