|
THYMOLPHTALEIN
|
| CAS
Number |
: |
125-20-2 |
| Molecular
Formula |
: |
|
| Mol.
Wt. |
: |
430.53 |
| Description |
: |
White
or yellowish white crystals or crystalline powder |
| Solubility |
: |
Insoluble
in water, soluble in alcohol, acetone, also soluble
in dilute alkalies with a blue colour, in sulphuric
acid with a carmine red colour. |
| Melting
Point |
: |
253°C |
| Clarity
of Solution |
: |
Passes |
| Visual
Transition Interval |
: |
pH
8.8 - Colourless
pH 9.4 - Pale grayish blue
pH 9.9 - Blue
Limit : Less than 2ml of 0.01N NaOH Soln. |
|
