ORGLIST: Prep :Buffer pH 7.4

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From: finechem (chemicals555$##$yahoo.com)
Date: Tue Apr 12 2005 - 09:48:07 EDT


Dear all,

I would like to know how to prepare a buffer using
sodium bicarbonate(NaHCO3)and sodium acid
pyrophosphate (SAPP,Na2H2P2O7) OR any other acidic
sodium salt,giving a pH of 7.4 and a buffer strength
of 100 mM.

How much of each solute to add in 1 Lt of distilled
water?
Thanks in advance
jmarjorie
chemicals555$##$yahoo.com






                
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