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Yellow Phenolphthalein

Yellow Phenolphthalein

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 Yellow Phenolphthalein

Test Resultlimit
Formula:C20H14O4 
CAS Number:77-09-8 
Mol. Wt.:318.33 
Description:Yellowish PowderPASSES
Indetification CompliesShould Comply
Solubility:CompliesShould Comply
Colour of Solution:1.473Absorbance of 3%soln at 405 nm 
     : is not less than 0.150
Melting Temperature:256 .8°C( LT. NLT 255o C )
Chromatographic Purity :1.99%NMT 6.0%
Assay :97.26%(LT. 93.0%-100.0%)
Loss on Drying:0.33%( LT.NMT 1.0 %)
Residue on ignition:0.039%( LT.NMT 0.1 % )
Heavy Metals:Compplies(LT.NMT 0.0015 %)
Arsenic:Complies(LT. NMT 8 PPM)