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1-NAPHTHOLPHTHALEIN
pH Indicator pH 7.3 colorless to reddish; 8.7 greenish to blue
1-NAPHTHOLPHTHALEIN excellent quality manufacturer, exporter and supplier. 1-Naphtholphthalein (C28H18O4) is a pH indicator with a visual transition from colorless/reddish to greenish blue at pH 7.3 – 8.7.
As indicator in 0.1% or 0.04% solution in alcohol. pH 7.3 colorless to reddish; 8.7 greenish to blue. Particularly adapted for weak acids in strong alcoholic solution.
pH 7.1 - pH 8.3 pink brownish - blue
Storage of liquid indicator : storage temp. Store below +30°C.solubility Solubility Practically insoluble in water; soluble in ethanol
| C.A.S. No. |
596-01-0, Physical State : Black Powder Insoluble in water |
| M.F. | C28H18O4 |
| M.W. | 418.45gm/mole |
Specifications:
|
Range7.1(brownish)-8.3(blue/