NILE CHEMICALS

BROMOCRESOL GREEN
 
SPECIFICATION SHEET

Bromocresol Green

3'3"5'5"-Tetrabromo-m-cresolsulfonephthalein

Molecular Formula
C21H14Br4O5S
Molecular Weight 698.01
CAS Number    76-60-8

Test

 

Results

(Limit/Std)

       
Appearance   Yellow Colour Powder (passes test)
       
Transitio pH range   3.8-5.4  
    GREENISH YELLOW - BLUE  
       
Soluability 0.1% (EtOH)   Clear Golden Yellow Solution (passes test)
       
Absorptivity 1%/1cm,      
(pH 3.8) at l max 444.0 nm   257 (240-270)
(pH 5.4) at l max 616.0 nm   552 (530-570)
       
Loss On Drying (1100C) 1 hr.   0.85% < 3%

 

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