Acid Alkali Universal pH Indicator, Blue Reel, 7 mm x 5 m, 1 Roll
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$32.19
1
/ Roll
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Description
Blue and red litmus paper and phenolphthalein strips are mixed indicator tests designed for fast, accurate, and reliable pH solution testing.
Universal indicators
Cytiva's acid-alkali litmus paper is impregnated with a mixture of pH indicators. They assume a color specific to the sample pH upon contact with a sample.
- Red litmus paper turns blue in alkaline solutions.
- Blue litmus paper turns red in acidic solutions.
- Phenolphthalein strips are colorless in acidic solutions and pink in basic solutions.
The convenience of using indicator papers for the rapid determination of pH values has a variety of applications in laboratories and industry.
Blue and red litmus papers
These easy-to-use test papers facilitate a general test for acid or alkaline reactions. Change in color occurs around pH 5 to 8. Blue and red litmus paper reels are particularly recommended for educational use.
Phenolphthalein reels
Phenolphthalein white paper changes to pink at pH 8.3 and becomes red at pH 10. These pH indicator strips are useful for the determination of the neutralization point in weak acid/strong alkali reactions.
Looking for a filter paper, membrane filter, or syringe filter? Let Cytiva help you find the optimal filter for your needs to ensure reliable analysis.
Features
- Instant pH readings.
- Mixed-indicator.
- Accurate for a wide range of routine pH testing.
- Convenient and portable for field use.
- Choice of blue and red litmus paper or phenolphthalein strips.
- Color change in pH solutions ranges from approximately 5 to 8.
Product Specifications
| Manufacturer Part 2600-201A: | Color Blue |
|---|---|
| Manufacturer Part 2600-202A: | Color Red |
| Size: | 7 mm x 5 mm |
|---|
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