Bromothymol blue

Template:PH indicator template Bromothymol blue, also known as bromthymol blue, is a chemical indicator for weak acids and bases.

The bromothymol blue acts as a weak acid in solution and therefore can be in acid or base forms which appear yellow and blue respectively. Typically solid bromothymol blue is sold as a sodium salt of the acid indicator.

Missing image
Bromothymol_Blue.gif
Structural formula of bromothymol blue

C27H28Br2O5S ↔ H+ + C27H27Br2O5S-

The pKa for bromothymol blue is 7.1.

Formula: C21H15NaBr2O3S
Alternative name: Dibromothymolsulfonephthalein, BTB


Template:Organic-compound-stubsv:Bromtymolblått

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