• brilliant-blue-fcf-fdc-blue-1
  • brilliant-blue-fcf-fdc-blue-1
  • brilliant-blue-fcf-fdc-blue-1

Brilliant Blue FCF (FD&C Blue #1)

Synthetic blue colorant for foods, cosmetics, and industrial uses.
SKU: FDCBLUE1
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Bromothymol Blue, Powder, >99%

Bromothymol Blue (also known as bromothymol sulfone phthalein, Bromthymol Blue, and BTB) is a chemical indicator for weak acids and bases. At a pH of 6.0 or lower, it appears yellow. It transitions in color between pH 6.0 and 7.6, becoming completely blue at pH 7.6.

Product Specifications

Chemical Name Bromothymol Blue
Synonyms Bromothymol sulfone phthalein, BTB
Purity >99%
Color Change Range Yellow at pH ≤ 6.0, Blue at pH ≥ 7.6
Chemical Formula C27H27O5SBr2Na
Molecular Weight 646.38 g/mol
CAS Number 34722-90-2

Applications and Benefits:

  • Used as a chemical indicator for weak acids and bases
  • Facilitates pH measurement in the range of 6.0 to 7.6
  • High purity powder for accurate scientific applications
  • 1 gram prepares up to 10 liters (3 gallons) of indicator solution

Caution:

This high-purity product requires special procedures for solution preparation. For beginners, a ready-to-use solution (BTB10S) is recommended.

  • Availability: In Stock
  • Model: FDCBLUE1
  • Brand: ChemicalStore