Vitamin "C" Reagent (Dichlorophenolindophenol) is an indicator for semi-quantitative determination of vitamin C. Provided as one tablet in a dropper bottle. Just add 30ml of distilled water to make enough indicator solution for many tests.
Instructions for use:
- Add 30 mL of distilled water into provided dropper bottle containing one (1) Vitamin C tablet.
- Agitate gently to dissolve.
- Solution is stable for 6 months.
- Record expiration date on bottle label.
- Store at 35 to 45°F (2-8° C)
Testing foods for Vitamin C... Click Here to see these instructions with pictures.
Vitamin C Reagent indicator solution is blue. A colorless end point will be reached when this indicator is added to a solution containing vitamin C.
- First, prepare test solution by grinding vitamin C reagent tablet into a powder using a mortar and pestle or back of a spoon. Pour powder into dropper bottle and add 30ml (1 oz.) of distilled water.
- If testing more than one liquid, label each test tube with a marker. Fill each with 50 drops of blue vitamin C indicator solution.
- Now add juice one drop at a time to the indicator solution in the test tube.
- Count drops until dark blue color turns clear. This is your end point.
- Compare different juices. Those that require more drops to reach the clear end point are LOWER in vitamin C.