Bromocresol Purple
Use attributes for filter ! | |
Molar mass | 540. 24 g/mol |
---|---|
NFPA 704 (fire diamond) | 0 1 0 |
R-phrases (outdated) | R36/37/38 |
Solubility in water | < 0. 1 % |
S-phrases (outdated) | S26, S36 |
Appearance | Purple powder |
Date of Reg. | |
Date of Upd. | |
ID | 2379783 |
About Bromocresol Purple
Bromocresol purple or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family and a pH indicator. It is colored yellow below pH 5. 2, and violet above pH 6. 8. In its cyclic sulfonate ester form, it has a pKₐ value of 6. 3, and is usually prepared as a 0. 04% aqueous solution.