Introduction
Product Definition
C03 Phenolphthalein Test Reagent 10ml is a chemical indicator used to quickly determine whether the pH value of a solution falls within the range of 8.2 to 10. When the test solution turns fuchsia, it indicates that the solution has a pH value between 8.2 and 10, which is alkaline; other values remain colorless. The product is suitable for applications such as alkalinity testing of daily chemical products, water alkalinity testing, and water purifier demonstrations. It is easy to operate and convenient to carry.
Product Features
- Clear phenolphthalein color change range: appears fuchsia at pH 8.2–10, and is essentially colorless below or above this range.
- High reagent concentration, with a quick and sensitive transition between colorless and fuchsia; testing strong alkalinity in water can be completed in about 2 minutes.
- The bottle cap features an anti-reflux drip design that effectively blocks outside air, reducing contamination of the test reagent by airborne pollutants.
- 10ml small bottle packaging is portable and ready to use at any time, with simple and safe operation.
- Applicable to a wide range of daily chemical products and household water quality testing, with broad application scope.
Core Specifications
- Product Name: Phenolphthalein Test Reagent
- Model: C03
- Capacity: 10ml
- Dimensions: approx. 6cm in height, approx. 2cm in diameter
- Test Item: Detects solutions with a pH value of 8.2–10; fuchsia indicates pH 8.2–10, other values are colorless
- Application Range: Suitable for daily chemical products requiring alkalinity testing, such as cosmetics, shampoo, body wash, laundry detergent, and bar soap
- Precautions: Do not ingest; store away from light
Usage Scenarios
- Routine testing of alkalinity in daily chemical products such as cosmetics, shampoo, body wash, laundry detergent, bar soap, dishwashing liquid, and toothpaste.
- Understand the alkalinity level of daily chemical products for greater peace of mind during use.
- Supporting demonstration for water purifier sales: showcase pH value changes before and after filtration to customers at events, making the demonstration results more直观 and convincing.
- Rapid household screening of water alkalinity, portable and easy to use.
FAQ
Q: How do I use the C03 Phenolphthalein Test Reagent?
A: Take a small amount of the test solution in a transparent container, add 2–3 drops of phenolphthalein test reagent, shake evenly, and observe the color change. If the solution turns fuchsia, the pH value of the test solution is between 8.2 and 10, indicating alkalinity; if it remains colorless, it is outside this range.
Q: Can the phenolphthalein test reagent detect acidic solutions?
A: No. The color change range of phenolphthalein is pH 8.2–10, which is only used for detecting alkaline solutions and is not suitable for detecting acidic solutions.
Q: What does it mean if the test solution turns fuchsia?
A: It means the pH value of the test solution is between 8.2 and 10, and the solution is alkaline.
Q: What precautions should be taken during use?
A: Do not ingest, and avoid contact with the mouth and eyes. The reagent should be stored away from light. Tightly close the bottle cap after use to prevent contamination and loss of effectiveness.
Related Terms
- pH value: A numerical value indicating the acidity or alkalinity of a solution. pH below 7 is acidic, pH 7 is neutral, and pH above 7 is alkaline.
- Phenolphthalein: An organic weak acid indicator commonly used in acid-base titration and detection of alkaline substances.
- Color change range: The pH interval in which an indicator changes color. The color change range of phenolphthalein is pH 8.2–10.0.
- Alkaline solution: A solution with a pH value greater than 7.
- Acidic solution: A solution with a pH value less than 7.
- Lactone structure: A colorless form of phenolphthalein under acidic and neutral conditions.
- Quinone structure: A fuchsia form of phenolphthalein under alkaline conditions.