 Titrate at once with the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished.  Circular of the National Bureau of Standards - Page 181by United States. National Bureau of Standards - 1942Full view - About this book
 | American Chemical Society - 1902 - 1394 pages
...the thiosulphate solution until the brown tinge has become weak and then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodine has entirely vanished. The blue color changes towards the end to a faint lilac.... | |
 | Albert Howard Low - 1905 - 318 pages
...the thiosulphate solution until the brown tinge has become weak and then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodine has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | Albert Howard Low - 1905 - 316 pages
...the thiosulphate solution until the brown tinge has become weak and then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodine has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | 1905 - 408 pages
...the thiosulfate solution until the brown tinge has become weak and then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodine has entirely vanished. The blue color changes towards the end to a faint lilac.... | |
 | United States. Bureau of Chemistry - 1905 - 954 pages
...the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | Alfred Stanley Miller - 1905 - 194 pages
...hyposulphite solution until the brown tinge has become weak, and then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the blue tinge has entirely vanished. When almost at the end, allow a little time after the addition of... | |
 | United States. Bureau of Chemistry - 1908 - 300 pages
...the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | Association of Official Analytical Chemists. Committee on Revision of Methods - 1910 - 304 pages
...the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | Charles Albert Browne - 1912 - 1002 pages
...the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodine has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
 | Arthur Given - 1912 - 104 pages
...the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished. The blue color changes toward the end to a faint lilac. If... | |
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