missing translation for 'onlineSavingsMsg'
Learn More
  1. Home
  2. Products
  3. Biochemical Reagents
  4. Staining Reagents
  5. Stains and Dyes
  6. 11953333

Phenolphtalein Indicator in Ethanol, 2g/L, Chem-Lab

Catalog Number 11953333
Click to view available options
Quantity:
1 L
This item is not returnable. View return policy
This item is not returnable. View return policy

Description

Turns red-violent in the presence of bases (at pH 8.2–9.8). Phenolphtalein Indicator in Ethanol, 2g/L, Chem-Lab contains 2g C20H14O4 per 1L C2H5OH. It is used as an indicator in acid-base titrations.

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 8.2–9.8.
Melting Point -114°C
CAS 77-09-8, 64-17-5
Concentration 2g C20H14O4 per 1L C2H5OH
Molecular Formula C20H14O4
MDL Number MFCD00005913
Solubility Information Slightly soluble in water
InChI Key KJFMBFZCATUALV-UHFFFAOYSA-N
SMILES OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1
IUPAC Name 3,3-bis(4-hydroxyphenyl)-1,3-dihydro-2-benzofuran-1-one
Molecular Weight (g/mol) 318.33
PubChem CID 4764
ChEBI CHEBI:34914
Formula Weight 46.07g/mol
Odor Alcoholic
Density 0.79g/mL
pH Color Changes Colorless to red-violet at pH 8.2–9.8
Solvent or Matrix Ethanol
Quantity 1 L
Physical Form Liquid
Chemical Name or Material Phenolphtalein
Show More Show Less

Safety and Handling

compliance-icons
Product Identifier
  • Phenolphtalein indicator in Ethanol
 Signal Word
  • Danger
 Hazard Category
  • Flammable liquid Category 2
  • Carcinogenicity Category 1A
  • Germ cell mutagenicity Category 2
  • Reproductive toxicity Category 2
 Hazard Statement
  • H225-Highly flammable liquid and vapour.
  • H350-May cause cancer.
  • H341-Suspected of causing genetic defects.
  • H361-Suspected of damaging fertility or the unborn child.
 Precautionary Statement
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
missing translation for 'provideContentCorrection'

missing translation for 'productTitle'

missing translation for 'byClickingSubmit' missing translation for 'privacyPolicy'.

Cancel missing translation for 'submit'