Hi
Anyone purchased phenolphthalein powder from an national chemical company ?? or a company that will post

Can't find any locally

Stuart

I am a convert th the cheap and cheerful TUMERIC as an indicator solution. Shown to me by the Professor of Uni of WA (forgotten his name,frequents this site) who came over east to show a titration workshop to a meeting of the club back in 2005.
Go to your local supermarket or Asian grocer and get a small jar or bag of TUMERIC. About 100 grms. Yes the spice used in Indian cooking. Pour the whole contents into a 1 litre bottle of Methylated spirits and wait for the tumeric to infuse into the meth.
The meth will turn a typical yellow colour like the colour of your Butter chicken from the local Indian restaurant. Use the solution as an indicator solution just as you would Phenalpthaline. The indication is when the yellow tumeric in solution turns a "Vindaloo" RED colour. REALLY it turns a definate red. Be sure to use only the coloured meth with out any powder in it. I usually just pipette from the top of the bottle as the powder settles to the bottom of the bottle, however the Prof. suggested filtering through a coffee filter paper to remove the powder.
try it, if you cant get the expensive Phenolphthalein.

i have never seen powdered phelphlene only ever liquid.
You can also use 'phenol red' available from pool shops and places that sell pool stuff. heaps cheaper and works with the same method.
Hope this helps
Cheers Nick.

__________________
Cheers
Nick.

Roidio 2001 Holden Rodeo 4x4 2.8L TD. 2.5" Straight through exhaust sytem, heat exchanger shower system. 2" Body Lift,
And lots of fruit, B100 for 25,000 no problems.

Elsa 1983 Mercedes-Benz W123 300D. The Fastest Merc in Oz, Loving B100 Burgers

Thanks chaps

I'm keen to give the Graham Laming's method a run

Stuart

If Graham said it I'm sure it'll work a treat. Good luck finding it

__________________
Cheers
Nick.

Roidio 2001 Holden Rodeo 4x4 2.8L TD. 2.5" Straight through exhaust sytem, heat exchanger shower system. 2" Body Lift,
And lots of fruit, B100 for 25,000 no problems.

Elsa 1983 Mercedes-Benz W123 300D. The Fastest Merc in Oz, Loving B100 Burgers