Australia's Science Forum

Hi Waddle ,
I would love a copy of the enzyme pracs as well I hope it is not too much trouble for you to fax my number is 029654 2359 Thanks very much.
Vera

Hi Kim,
Here is my recipe for ferroxyl indicator: Add 3ml of freshly prepared 1% potassium ferricyanide and 0.5ml phenolphthalein indicator to 100ml of 0.1M NaCl. The deoxygenated version is prepared using well boiled , then cooled water. from Vera

Thanks Robb, That advice will definately help me out.

Hi, Our senior chemistry class is analysing water for quality and needs to do the EDTA titration. Does anyone have any tips for dissolving the EDTA and also a good recipe for the eriochrome Black T indicator.