🔍 Dive into Precision with Bromothymol Blue!
Bromothymol Blue Indicator at 0.04% (w/v) is a ready-to-use solution ideal for various laboratory applications, complete with Certificates of Analyses and MSDS from the manufacturer, ensuring quality and traceability to NIST standards.
R**L
BTB in volume provides for countless tests
This indicator is used for freshwater where pH when it is is close to 7.0 in aquariums. Also, it is used as the indicator for long term CO2 monitoring; you attach an indicator to the inside of your tank about 10 cm below the surface. Yellow = too much C02, blue = add more C02. The aquarium stores sell the replacement indicator solution for $6.99 for 10 ml. You aren't told what this indicator is anywhere - not on the box nor the bottle - but it appears they are using bromothymol blue. So, I could refill the 10 ml indicator solution bottle 50 times from the 500 ml bottle reviewed here.Pro:-if you need to make numerous and frequent pH tests of fresh water this is the bargain buy. It claims to expire in 2 years but it will probably last longer.- really cheap per use if purchased this wayCon: it's in bulk form so you need to have means to deal with that.
S**G
This product did NOT work like it should
This product did NOT work like it should. This was used for a science experiment and my last batch of bromothymol blue worked perfect for my first 2 classes and this new bottle did not work. I feel like I received a bad batch because under no circumstances could I get the indicator to change colors. I am very disappointed that I can not return this defective product or receive a replacement that would actually work. I would like to be contacted about making this correct.
R**H
Fun class project
When blowing through a (cut) straw into the solution, it turns green (addition of carbon dioxide). It's a fun project for elementary kids learning the difference between carbon dioxide and oxygen.
D**X
Great!
Well packaged and in a VERY sturdy bottle. Full label info, and MSDS included. Very impressed. Will use Ricca again!
P**T
Bromothymol Blue
It is what it says it is, and it works for what you'll need it for!
J**.
Did not change color as an indicator
I ordered this for a respiration lab and the indicator did not change color. What a waste and I cannot return it.
K**S
Great for my class experiment!
I used this for a class experiment to show we exhale carbon dioxide and plants inhale. My 5th graders loved it! Thanks!
M**K
Great Find!
A must purchase for any California 5th grade or 8th grade teacher teaching chemistry!
Trustpilot
1 week ago
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