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Phenolphtalein Indicator in Ethanol, 1g/L, Chem-Lab

Turns red-violent in the presence of bases (at pH 8.2–10). Phenolphtalein Indicator in Ethanol, 1g/L, Chem-Lab contains 1g C20H14O4 per 1L C2H5OH. It is used as an indicator in acid-base titrations. Manufactured according to Eur. Ph. 4.4.1.1 standards.

Brand:  Chem Lab CL07.0606.0100


Quantity 100 mL

Product Code. 11957423

  • 499.00 DKK / 100mL

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Description

Description

Phenolphthalein is usually dissolved in alcohol for use in experiments. It is a weak acid, which can lose H+ ions in solution. The phenolphthalein molecule is colorless, while the phenolphthalein ion is pink. In acidic and neutral solutions, the solution is colorless. When a base is added to the phenolphthalein, more ionization takes place, causing the solution to turn a red-violet color. This solution turns this pinkish color at pH 8.2–10.0.
Specifications

Specifications

77-09-8, 64-17-5
C20H14O4
Slightly soluble in water
OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
318.33
CHEBI:34914
Eu. Ph. Chapter 4(4.1.1)
0.86g/mL
Ethanol 80%
100 mL
Phenolphtalein
1g C20H14O4 per 1L C2H5OH 80%
MFCD00005913
KJFMBFZCATUALV-UHFFFAOYSA-N
3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
4764
46.07g/mol
Alcoholic
Colorless to red-violet at pH 8.2–10.0
±7
Liquid
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Safety and Handling

Safety and Handling

Product Identifier
  • Phenolphtalein indicator in Ethanol

Signal Word
  • Danger

Hazard Category
  • Flammable liquid Category 2

Hazard Statement
  • H225-Highly flammable liquid and vapour.

Precautionary Statement
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

Supplemental information
  • MIXTURE LIST-Contains : ethanol

SDS
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