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Code: km-313
Product name: Phenolphthalien CAS No.: 77-09-8 Molecular formula: C20H14O4 Molecular weight: 318.33 Pharmacy grade BP2009 / EP6
Appearance
White powder
Assay
98.0% -101.0%
Melting point
260’C min.
Identification
Acidity or alkaline
Positive
Pass
Solution appearance
Related substances
0.5% max
Chloride
100ppm Max
Sulfate
200ppm Max
Heavy metals
Loss on drying
Sulfate ash
10ppm Max
0.5% max.
0.1% max
Reagent grade
PH transition interval
8.0(colorless)-10 (dark purple-red)
Mass-absorption coefficient (L/cm.g)
68.5-75.0
Ethanol soluble test
Qualified
Residue on ignition ( as sulfate)
0.05% min.
1.0% min
Package: 25kg/ fibre drum
