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Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

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 #1 
Old 2003-08-26, 00:48
stillbill stillbill is offline
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Default ? for Lukky D

Thanks for the reply about the over acidification. If you don't mind me asking ,

what does Swil use when titrating a rxn in regards to ph? Swis has finished long rxn, but discovered ph meter has gone "haywire",

do not want to screw things up this far along. The town swis lives in, nobody has even heard of ph strips. Any suggestions?
 #2 
Old 2003-08-26, 08:44
lukkydleprachan lukkydleprachan is offline
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Default Re: ? for Lukky D

SWIL always used pH strips, just cause they are easy and it takes the guess work out of one more step. They can be found at Wally World or even at pool supply houses. Say that you have a spa.

There are other more "guess methods", but even those SWIL isn't an expert with. It takes actual hands-on experience to learn, something that SWIL cant teach SWIU. Unfortunately.

Try boiling red cabbage in water, and retaining the juice. Find a chart that shows the pH changes and corresponding colors of cabbage juice. By simply dropping some fluid into a small amount of the juice, one can accurately judge the pH.

Lukky D
 #3 
Old 2003-08-26, 12:35
stillbill stillbill is offline
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Default Re: ? for Lukky D

Thanks again Lukky D, Swis went to grocery store and picked up red cabbage. Will take coffee filter paper and dip in boiled cabbage juice. Seems Rhodium chem site has

a topic on using red cabbage for phing.
 
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