The hydrolysis of sodium oxalate and its influence upon the test for ...
The hydrolysis of sodium oxalate and its influence upon the test for ...
The hydrolysis of sodium oxalate and its influence upon the test for ...
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53 Bulletin <strong>of</strong> <strong>the</strong> Bureau <strong>of</strong> St<strong>and</strong>ards [Voi. 8. no. ji<br />
pared by adding 0.2 cc phenolphthalein to 150 cc <strong>of</strong> water con-<br />
taining 10 CO <strong>of</strong> 0.1 A^ <strong>sodium</strong> hydroxide <strong>and</strong> diluting 9 cc <strong>of</strong> this<br />
solution to 150 cc.) Each cc <strong>of</strong> o.oi N acid or alkali required to<br />
titrate to <strong>the</strong> st<strong>and</strong>ard color indicates <strong>the</strong> presence, respectively, <strong>of</strong><br />
approximately 0.04 per cent NaHCOg or 0.03 per cent NaHC204.<br />
One or two water recrystallizations in platinum will usually be<br />
sufficient <strong>for</strong> <strong>the</strong> preparation <strong>of</strong> <strong>the</strong> pure salt from materials<br />
containing moderate excess <strong>of</strong> alkali or acid.<br />
<strong>The</strong> author desires to express his thanks <strong>for</strong> <strong>the</strong> in<strong>for</strong>mation<br />
furnished by J. H. Hildebr<strong>and</strong>, J. Johnston, W. C. Bray, <strong>and</strong><br />
W. F. Hillebr<strong>and</strong> during <strong>the</strong> course <strong>of</strong> this investigation.<br />
Washington, November 9, 191 1.
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