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Phenolphthalien

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  Post Date: Aug 26,2017
  Expiry Date: Feb 22,2018
  Detailed Description: Cas No. :77-09-8 Package:25KG/fibre drum
Pharmacy grade BP2009 / EP6

Appearance White powder

Assay 98.0% -101.0%

Melting point 260’C min.

Identification Positive

Acidity or alkaline Pass

Solution appearance Pass

Related substances 0.5% max

Chloride 100ppm Max

Sulfate 200ppm Max

Heavy metals 10ppm Max
Loss on drying 0.5% max.
Sulfate ash 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




  CAS Registry Number:

77-09-8
  Synonyms: ;Phenolphthalein solution;3,3-bis(p-hydroxyphenyl)phthalide;,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranore;3,3-bis(4-hydroxyphenyl)-2-benzofuran-1(3H)-one;2-[bis(4-hydroxyphenyl)methyl]benzoic acid;Phenolphthalien;
  Molecular Formula: C20H14O4
  Molecular Weight: 318.3287
  Molecular Structure: 77-09-8 Phenolphthalein
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R22:;
R40:;
  Safety Description: S36/37:;
S45:;

  Company: Wuhan Kemi-Works Chemical Co., Ltd     [ China ]          
  Contact: Dr. Allen Zhang
  Tel: 86-27-85736489
  Fax: 86-27-85736485
  Email: sales@kemiworks.com; info@kemiworks.net
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