why is solid iodine not considered a good standard solution

Subject: why is solid iodine not considered a good standard solution

Date: Tue Mar 16 23:26:42 1999
Posted by Richard
Grade level: 10-12 School: Lake Ginnenderra College
City: Canberra State/Province: ACT Country: Australia
Area of science: Chemistry
ID: 921648402.Ch

Message:


in an experiment to find the amount of ascorbic acid in a vitamin 
C tablet. The iodine is titred with sodium thiosulfate and once 
combined is titred into a solution of the tablet and water. So 
why is the iodine mixed with the sodium thiosulfate and not used 
by itself

Re: why is solid iodine not considered a good standard solution

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