Phenolphthalien

Phenolphthalien

Index No.:

km-313

Products Name

Phenolphthalien

CAS No.:

28376

Introduction

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	Pass
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

Appearance	White powder
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.
Loss on drying	1.0% min

Package: 25kg/ fibre drum

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