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Home - Products - Biological Stains & pH Indicators -
PHENOL RED SODIUM SALT
SPECIFCIATION
 PRODUCT NAME  PHENOL RED SODIUM SALT
 CAS NUMBER  34487-61-1
 MOLECULAR FORMULAE  C19H13SO5 Na
 MOL WEIGHT  376.36gm/mole
 TRANSITION RANGE
 
 PH 1.2-3.0  BROWNISH ORANGE- YELLOW
 PH 6.5-8.2  YELLOW-REDDISH VIOLET
 ABSORPTION MAXIMUM (PH 1.2) ?1 MAX  503-506 nm
 ABSORPTION MAXIMUM (PH 3.0) ?2 MAX  430-435 nm
 ABSORPTION MAXIMUM (PH 6.5) ?3 MAX  430-435 nm
 ABSORPTION MAXIMUM (PH 8.2) ?4 MAX  557-560 nm
 ABOSRPTIVITY (A1%/1CM, AT PH 1.2,  AT ?1 MAX )  880-950
 ABOSRPTIVITY (A1%/1CM, AT PH 3.0,  AT ?2 MAX )  560-620
 ABOSRPTIVITY (A1%/1CM, AT PH 6.5,  AT ?3 MAX )  560-620
 ABOSRPTIVITY (A1%/1CM, AT PH 8.2,  AT ?4 MAX )  970-1100
 LOSS ON DRYING AT 1100C  < 5%
 
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