Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator.It is typically sold in solid form as the sodium salt of the acid indicator.
Himedia Bromothymol Blue Hi-CERT™/ACS 5g
$159.50 inc-GST
Himedia Bromothymol blue, Hi-CERT™/ACS 5Gram
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