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About Bartovation
From our headquarters in Queens, New York and with the help of our distributor network, we service customers all around the globe. We specialize in the production and distribution of testing strips for virtually every application. We value every one of our customers and strive to make them happy and satisfied.
- This product is proudly Made in America
Red & Blue Litmus Paper Acid/Base pH Indicator Strips Combo Pack
Qualitative No Color Chart Test Strips
Students can test solutions for acid or base determination. Easy-to-use red litmus paper turns blue for bases and blue litmus turns red for acids. 100 strips of each. Not for measuring the pH of natural waters, such as streams, rivers and lakes.
- A simple way to determine without a doubt if a solution is acidic or basic, with a second test to confirm your findings
- No external reagents or chemicals needed for accurate testing of solutions
- Comes with 2 portable vials, each filled with easy to use, pre-cut strips
- No color chart needed to determine findings; these tests are designed for determining if the pH is above or below a certain level NOT giving a precise pH value
Sean
2025-09-05 10:38:01
Science teacher approved.
BAGS
2025-09-03 14:16:00
Used these in a chemistry lab for my homeschooled student. Worked very well. Recommend!
Vivi Anne
2025-09-01 21:49:05
My students enjoyed using this ph indicator as they experimented with different foods and household items.
SCS
2025-08-31 12:08:07
Strips are of a good length and uniform color. Tests with HCl and NaOH show both red and blue work well as advertised. Information on wrapper about how color change is initiated is a useful reminder for non-chemists.Product could be improved in two ways. In addition to the tight plastic cap, a small disc of desiccant in the cap or at the base would also help keep the strips dry. On the wrapper, a reminder that the color change can be reversed by adding a solution of the opposite pH would also be helpful.
Sarah
2025-08-20 17:08:02
These were exactly as advertised and were precisely what I needed for a science experiment. My students were in awe the first time they saw the paper strip color change depending on the liquid tested.
Jennifer
2025-05-01 21:22:46
Using this product in my classroom, I can say that this litmus paper does what it needs to. The blue paper reliably turns red in acidic conditions and the red paper turns blue is basic conditions. These are not designed to give you an exact pH, but are meant for a general indication. I have not spent the time to assess the sensitivity of the litmus paper. If you're trying to test something very slightly acidic and basic it might not be the best option.
On Point With Patel
2025-04-04 17:08:28
My daughter needed this for her college chemistry class. She asked me to buy it so I did. She said it worked. Amazon was great with the delivery as usual.
Mr. Based
2025-03-18 13:47:40
Simple and efficient.
Customer
2025-02-14 12:22:18
Useful.
Barua
2025-02-11 13:36:20
Great for science experiments for my kids! They've just started learning chemistry, and this is a very useful product
Muldoon
2025-01-25 11:52:32
works
Robert M Wehry
2025-01-13 18:57:18
Not clear tap colour!
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