Review on Phenolphthalein Indicator Solution Dropper Containing by Christopher Bates
Do not go. No pink. Suitable for laboratory and scientific products
So I ordered for high school science lab. Have been doing this lab for years. I did a diluted vinegar test which usually works but to no avail. I tried 100% vinegar, the color did not change. It was two bottles so I tried another bottle of straight vinegar. I even tried lemon juice and muriatic acid but nothing. Nothing at all.
- Industrial and scientific products
- Slightly torn
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