alpha-Naphtholphthalein CAS 596-01-0
The impurities in alpha Nathophthalein are mostly light red in color, which changes from light red to blue-green at pH 7.3-8.7.
| Item | Specification |
| Boiling point | 496.21°C (rough estimate) |
| Density | 1.1532 (rough estimate) |
| Melting point | 238-240 °C(lit.) |
| pKa | 8.0, 8.2, 8.5(at 25℃) |
| resistivity | 1.6400 (estimate) |
| Storage conditions | Store below +30°C. |
Alpha Nephthophyllein is used as an acid-base indicator. It is colorless to orange yellow at a pH of around 6.7 and changes from orange yellow to blue at a pH of around 7.9. Impurities in commercially available products often appear as a light red color, which changes from light red to blue-green at a pH of 7.3-8.7.
Usually packed in 25kg/drum,and also can be do customized package.
alpha-Naphtholphthalein CAS 596-01-0
alpha-Naphtholphthalein CAS 596-01-0
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