2,2'-BIS(2-CHLOROPHENYL)-4,4',5,5'-TETRAPHENYL-1,1'-BI-1H-IMIDAZOLE

PRODUCT IDENTIFICATION
CAS NO. 1707-68-2

2,2'-BIS(2-CHLOROPHENYL)-4,4',5,5'-TETRAPHENYL-1,1'-BI-1H-IMIDAZOLE

EINECS NO. 216-952-7
FORMULA C42H28N4Cl2
MOL WT. 659.60
H.S. CODE  
TOXICITY  
SYNONYMS BTB;
2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-imidazol-1-yl]-4,5-diphenyl-imidazole;
DERIVATION 
 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

white crystalline powder

MELTING POINT 200 - 203 C
BOILING POINT  
SPECIFIC GRAVITY  
SOLUBILITY IN WATER  
AUTOIGNITION  
pH  
VAPOR DENSITY  
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 

STABILITY Stable under ordinary conditions

APPLICATIONS
Photoinitiators undergo a unimolecular bond cleavage upon irradiation to yield free radicals (benzoin esters; benzil ketals; alpha-dialkoxy acetophenones; alpha-hydroxy-alkylphenones; alpha-amino alkyl- phosphine; acylphosphine oxides). Another type of photoinitiators undergo a bimolecular reaction where the excited state of the photoinitiator interacts with a second molecule (a coinitiator) to generate free radicals(benzo phenones,amines; thioxanthones,amines; titanocenes). Photoinitiators are widely applied in UV curing inks, wood coatings, paper coatings, optical fiber, PCB, screen printing , paper varnish and other surface coatings.
SALES SPECIFICATION

APPEARANCE

white crystalline powder

CONTENT

99.0% min

MELTING POINT 200 - 203 C
TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS  
UN NO.

 

OTHER INFORMATION