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This Bromothymol Blue Gauge 0.04% (w/v) solution is made in our US laboratory by qualified and experienced chemists using strict quality control procedures. This product is usually used as a pH indicator showing a yellow colour at pH 6.0 and a blue colour at pH 7.6. This product can be used in other applications. The package contains an empty 2oz dropper bottle and a convenient dispensing cap for filling the dropper bottle. Not suitable for Human Consumption. Review: great price; prompt delivery; works great Review: I tried to use this for my class to show chemical change and it would not react. Never changed color, waste of money and time, and it ruined my lesson plan.
| ASIN | B0721YWGZV |
| Are batteries included? | No |
| Brand | Biopharm |
| Colour | Yellow, Blue |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (36) |
| Date First Available | 25 October 2025 |
| Item Dimensions LxWxH | 22.9 x 7.6 x 10.2 Centimeters |
| Item Height | 4 Inches |
| Item Weight | 300 g |
| Item Width | 3 Inches |
| Item model number | BB4026B |
| Manufacturer | Biopharm Inc |
| Model number | BB4026B |
| Number of Memory Sticks | 1 |
| Product Dimensions | 22.86 x 7.62 x 10.16 cm; 300 g |
T**3
great price; prompt delivery; works great
D**P
I tried to use this for my class to show chemical change and it would not react. Never changed color, waste of money and time, and it ruined my lesson plan.
C**E
This item was horrible. I’m not sure it’s actually bromothymol blue. I tried to use it for a biology class experiment and it didn’t work.
M**Z
It was suppose to change color when you exhale CO2 into the product but didn’t work. Students and I we’re disappointed
Trustpilot
2 weeks ago
3 weeks ago