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My bromothymol blue has turned green. What should I do?

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Bromothymol blue is a pH indicator that changes color from blue to green to yellow. When working with bromothymol blue, be careful not to leave the bottle open for extended periods of time, as exposure to carbon dioxide in the atmosphere can cause a color change to occur. If your bromothymol blue has turned green, please contact Science Interactive for a replacement bottle.

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