missing translation for 'onlineSavingsMsg'
Learn More
  1. Home
  2. Products
  3. Biochemical Reagents
  4. Staining Reagents
  5. Stains and Dyes
  6. 11913333

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

Product Code. 11913333
Change view
Click to view available options
Quantity:
1 L
Unit Size:
1 L
Product Code. Quantity unitSize
11913333 1 L 1 L
1 options
This item is not returnable. View return policy

Product Code. 11913333

Brand: Chem-Lab CL06.0602.1000

Please to purchase this item. Need a web account? Register with us today!

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 Methanol, 10g/L, Chem-Lab contains 10g C20H14O4 per 1L CH3OH. 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.

Specifications

Melting Point -98°C
CAS 77-09-8, 67-56-1
Concentration 10g C20H14O4 per 1L CH3OH
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)-2-benzofuran-1-one
Molecular Weight (g/mol) 318.33
PubChem CID 4764
ChEBI CHEBI:34914
Odor Alcoholic
Density 0.79g/mL
pH Color Changes Colorless to red-violet at pH 8.2–9.8
Solvent or Matrix Methanol
pH ±7
Quantity 1 L
Physical Form Liquid
Chemical Name or Material Phenolphtalein
Show More Show Less

Safety and Handling

compliance-icons compliance-icons compliance-icons
Product Identifier
  • Phenolphtalein 10 g/l in methanol indicator solution
 Signal Word
  • Danger
 Hazard Category
  • Acute toxicity Category 3
  • Carcinogenicity Category 2
  • Flammable liquid Category 2
  • Germ cell mutagenicity Category 2
  • Specific target organ toxicity after single exposure Category 1
 Hazard Statement
  • H225-Highly flammable liquid and vapour.
  • H301-Toxic if swallowed.
  • H311-Toxic in contact with skin.
  • H331-Toxic if inhaled.
  • H341-Suspected of causing genetic defects.
  • H350-May cause cancer.
  • H370-Causes damage to organs.
 Precautionary Statement
  • 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.
  • P302+P352-IF ON SKIN: Wash with plenty of water/soap.
  • P308+P313-IF exposed or concerned: Get medical advice/attention.
 Supplemental information
  • MIXTURE LIST-Contains : phenolphthalein
Product Title
Select an issue

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.