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$32.20
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About This Item
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packaging
pk of 1
manufacturer/tradename
Whatman 2600-202A, Whatman Article No. 28418890 (US reference)
L × W
5 m × 7 mm
detection method
colorimetric
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This Item | WHA2631990 | WHA10362030 | WHA10362010 |
|---|---|---|---|
| detection method colorimetric | detection method colorimetric | detection method colorimetric | detection method colorimetric |
| packaging pk of 1 | packaging pk of 1 | packaging pk of 1 | packaging pk of 100 |
| manufacturer/tradename Whatman 2600-202A | manufacturer/tradename Whatman 2631-990, Whatman Article No. 28418931 (US reference) | manufacturer/tradename Whatman 10362030, Whatman Article No. 28414742 (US reference) | manufacturer/tradename Whatman 10362010, Whatman Article No. 28414741 (US reference) |
| L × W 5 m × 7 mm | L × W 11 mm × 100 mm | L × W - | L × W - |
Features and Benefits
- 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 phenophthalein strips
- Color change in pH solutions ranging from approximately 5 to 8
General description
Universal indicators
Cytiva′s acid-alkali litmus paper is impregnated with a mixture of pH indicators. They assume a color specific to sample pH upon contact with a sample. The convenience of using indicator papers for the rapid determination of pH values has a variety of applications in laboratories and industry.
- Red litmus paper turns blue in alkaline solutions
- Blue litmus paper turns red in acidic solutions
- Phenophthalein strips are colorless in acidic solutions and pink in basic solutions
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.
Phenophthalein reels
Phenophthalein 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.
Other Notes
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