RE: [CH] Mary & Riley's lime

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Hi C-H's,

At 9:38 AM -0700 5/9/01, Mary & Riley wrote:
>
>PS  Don't suppose you have a recipe for a homebrewed calibration
>solution?

Sorry. It is more cost effective for labs. to buy buffers and other 
electrolytes ready made up. If you want to try your hand at making 
your own:
Potassium phosphate (monobasic) + sodium hydroxide for pH7.00-8.00
Potassium biphthalate  for  pH4.00

Don't buy a cheap chemical balance!!
BTW, you can now get a reasonable hand held pH meter for about $70. 
(Assuming that you calibrate it properly of course.)
-- 
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                      Regards,               Cameron.

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