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pH Reagent Drops
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pH Reagent Drops

[PH-KIT] [by AlkaViva]
$10.95
  • Convenient 10.5mL platic bottle
  • Range from 4-10pH
  • Quick, accurate and easy to use!
  • Comes with water collection cup & pH chart
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Test The pH Of Your Water, Easily And Accurately

These pH Reagent drops are for testing pH (acidity or alkalinity) of water. Simply add 2-3 drops into small amount of water. Shake the container and observe the color change in the water. Compare the water color to the pH Color Chart provided to determine the pH of the water.

Chemical makeup of pH Reagent Drops:

  • Ethanol: This is another name for alcohol. It is found in alcoholic beverages and is used as a fuel and also as a solvent. In this case, pH reagent drops, it is used as a solvent.
  • Phenolphtalein: This is a chemical compound made up of carbon, hydrogen, and oxygen. It does not dissolve in water but will dissolve in alcohols. This compound when mixed in strongly acidic solutions turns orange. When it is mixed in acid or near neutral solutions it is colorless. When mixed in basic solutions it turns pink or fuchsia. When it is mixed in strongly basic solutions it is colorless.
  • Methyl Red: This is an indicator dye that turns red in acidic solutions. It is red below pH 4.4, yellow in pH above 6.2, and orange between 4.4 and 6.2 pH.
  • Bromothymol Blue: This is another indicator for weak acids and bases. It is yellow below 6.0 pH, blue above 7.6 pH, and green between 6.0 and 7.6 pH.
How much water do I need to test? You only need a small amount of water... about 1-2 ounces will be sufficient. How many drops do I need to use? You only need to use 3 or 4 drops if you are using a small amount of water. The smaller the water sample, the less drops you will need to use. You want to make sure to put as many drops in your sample water as it takes for you to see the color change. The more drops you use, the more vibrant the color will be, and easier to see. Does the pH Reagent fluid ever go bad? Yes, the effectiveness of the drops to determine accurate pH results will diminish over time. The older the bottle is, the less accurate the results will be - in which case the pH fluid will give you "false" results. I like to test my water more frequently. Is there a larger option than this 15cc bottle? Yes, SnyderHealth.com sells a 50cc bottle of pH Reagent fluid.
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