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Acid/Base (67/284)

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ACID BASE INDICATOR<br />
Bromothymol Blue<br />
Addition of NH4OH to solution raises pH above 7 and indicator turns blue.  Addition of HCl to solution lowers pH below 7 and indicator turns yellow.

Fphoto-32579301-2RM.jpg

ACID BASE INDICATOR
Bromothymol Blue
Addition of NH4OH to solution raises pH above 7 and indicator turns blue. Addition of HCl to solution lowers pH below 7 and indicator turns yellow.

Copyright:© 1993 Richard Megna - Fundamental Photographs

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