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Phenolphtalein Indicator in IPA, 10g/L, Chem-Lab

Código de producto. 11953994
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Código de producto. 11953994 Proveedor Chem-Lab N.º de proveedor CL06.0603.0250
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Descripción

Turns red-violent in the presence of bases (at pH 8.2–9.8). Phenolphtalein Indicator in IPA, 10g/L, Chem-Lab contains 10g C20H14O4 per 1L C3H8O. 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.

Especificaciones

Melting Point -89°C
CAS 77-09-8, 67-63-0
Concentration 10g C20H14O4 per 1L C3H8O
Odor Alcoholic
Molecular Formula C20H14O4
MDL Number MFCD00005913
Density 0.78g/mL
pH Color Changes Colorless to red-violet at pH 8.2–9.8
Solvent or Matrix 2-Propanol (IPA)
Solubility Information Slightly soluble in water
pH <2
Quantity 250 mL
InChI Key KJFMBFZCATUALV-UHFFFAOYSA-N
Physical Form Liquid
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)-2-benzofuran-1-one
Molecular Weight (g/mol) 318.33
PubChem CID 4764
ChEBI CHEBI:34914
Formula Weight 60.10g/mol
Chemical Name or Material Phenolphtalein
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Seguridad y manipulación

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Nombre del producto
  • Phenolphtalein 10 g/l in propanol-2 indicator solution
 Palabra de advertencia
  • Danger
 Clasificación
  • Carcinogenicity Category 1B
  • Serious eye damage/eye irritation Category 2
  • Flammable liquid Category 2
  • Germ cell mutagenicity Category 2
  • Specific target organ toxicity Category 3
 Indicaciones de peligro
  • H225-Highly flammable liquid and vapour.
  • H319-Causes serious eye irritation.
  • H336-May cause drowsiness or dizziness.
  • H341-Suspected of causing genetic defects.
  • H350-May cause cancer.
 Consejos de prudencia
  • P201-Obtain special instructions before use.
  • P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233-Keep container tightly closed.
  • P280-Wear protective gloves/protective clothing/eye protection/face protection.
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P308+P313-IF exposed or concerned: Get medical advice/attention.
 Otros peligros
  • MIXTURE LIST-Contain: phenolphthalein, propan-2-ol
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