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BROMOTHYMOL BLUE AS CHEMICAL INDICATOR<br />
Bromothymol Blue Indicates Three pH Levels<br />
pH levels from left to right are 5 (yellow), 7 (green), and 9 (blue).

Fphoto-66408308A-6CC.jpg

BROMOTHYMOL BLUE AS CHEMICAL INDICATOR
Bromothymol Blue Indicates Three pH Levels
pH levels from left to right are 5 (yellow), 7 (green), and 9 (blue).

Copyright:© 1983 Chip Clark - Fundamental Photographs

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