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| Name | Phenolphthalein solution 0.2% |
| Product Type | Volumetric analysis reagent |
| Concentration | 0.2% |
| Appearance | Colorless to pale yellow solution |
| Solubility | Soluble in alcohol, slightly soluble in water |
| PH Range | 8.3-10.0 |
| Odor | Odorless |
| Storage Conditions | Store in a cool, dry place away from light |
| Shelf Life | 2-3 years |
| Hazards | May cause eye and skin irritation, harmful if swallowed |
| Safety Precautions | Wear gloves, protective clothing, and eye protection |
| Uses | Indicator in acid-base titrations, particularly in determining the endpoint of NaOH titrations |
| Packaging | Bottles or containers with proper labeling |
| Manufacturer | Various chemical suppliers |
| CAS Number | 77-09-8 |
| Molecular Formula | C20H14O4 |
| Molar Mass | 318.32 g/mol |
FAQ
What is Phenolphthalein solution 0.2% used for in volumetric analysis?
Phenolphthalein solution 0.2% is commonly used as an acid-base indicator in volumetric analysis. It changes color depending on the pH of the solution, making it ideal for determining endpoints in titrations.
How is Phenolphthalein solution 0.2% prepared for use in volumetric analysis?
To prepare Phenolphthalein solution 0.2%, simply dilute the concentrated solution with the appropriate amount of solvent (usually water) to achieve a final concentration of 0.2%. Make sure to mix the solution well before using it in your titrations.
What are the advantages of using Phenolphthalein solution 0.2% in volumetric analysis?
One of the main advantages of using Phenolphthalein solution 0.2% is its sensitivity to changes in pH, making it a reliable indicator for titrations. Additionally, it has a clear and distinct color change, making it easy to identify the endpoint of a reaction.
Are there any precautions to consider when using Phenolphthalein solution 0.2% in volumetric analysis?
Yes, there are a few precautions to keep in mind when using Phenolphthalein solution 0.2%. Avoid exposure to high temperatures or direct sunlight, as this can degrade the solution. Additionally, store the solution in a cool, dark place when not in use to prevent any changes in color or potency.
How should Phenolphthalein solution 0.2% be disposed of after use in volumetric analysis?
Phenolphthalein solution 0.2% should be disposed of according to proper laboratory waste disposal guidelines. It is considered a chemical waste and should be handled and disposed of with care to prevent any environmental contamination.
Phenolphthalein solution 0.2% is commonly used as an acid-base indicator in volumetric analysis. It changes color depending on the pH of the solution, making it ideal for determining endpoints in titrations.
How is Phenolphthalein solution 0.2% prepared for use in volumetric analysis?
To prepare Phenolphthalein solution 0.2%, simply dilute the concentrated solution with the appropriate amount of solvent (usually water) to achieve a final concentration of 0.2%. Make sure to mix the solution well before using it in your titrations.
What are the advantages of using Phenolphthalein solution 0.2% in volumetric analysis?
One of the main advantages of using Phenolphthalein solution 0.2% is its sensitivity to changes in pH, making it a reliable indicator for titrations. Additionally, it has a clear and distinct color change, making it easy to identify the endpoint of a reaction.
Are there any precautions to consider when using Phenolphthalein solution 0.2% in volumetric analysis?
Yes, there are a few precautions to keep in mind when using Phenolphthalein solution 0.2%. Avoid exposure to high temperatures or direct sunlight, as this can degrade the solution. Additionally, store the solution in a cool, dark place when not in use to prevent any changes in color or potency.
How should Phenolphthalein solution 0.2% be disposed of after use in volumetric analysis?
Phenolphthalein solution 0.2% should be disposed of according to proper laboratory waste disposal guidelines. It is considered a chemical waste and should be handled and disposed of with care to prevent any environmental contamination.
