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" ... avoiding the useless saturation of the caustic potash solution. When the flow of carbonic acid has very nearly or completely ceased, pass the delivery tube down into the receiving arm, so that the bubbles will escape into the azotometer. Light the... "
Bulletin - Bureau of Chemistry - Страница 220
по United States. Bureau of Chemistry - 1889
Пълен достъп - Информация за книгата

The Students' Guide in Quantitative Analysis: Intended as an Aid to the ...

Henry Carrington Bolton - 1881 - 174 страници
...will escape into the azotometer. Light the jets under the 12-inch layer of oxide, heat gently fora few moments to drive out any moisture that may be...have all been turned on, light jets under layer of oxide at end of tube. When evolution of gas has ceased turn out all the lights except those under the...

Chemical News and Journal of Industrial Science, Томове 55–56

1887 - 636 страници
...bubbles will escape into the azotometer. Light the jets under the 12-inch layer of oxide, heat gently for a few moments to drive out any moisture that may...gradually mixture of substance and oxide, lighting one jet a time. Avoid too rapid evolution of bubbles, which should be allowed to escape at the rate of about...

The Journal of Analytical and Applied Chemistry, Том 2

Edward Hart - 1888 - 496 страници
...bubbles will escape into the azotometer. Light the jets under the 1 2-inch layer of oxide, heat gently for a few moments to drive out any moisture that may...evolution of bubbles, which should be allowed to escape at a rate of about one per second or a little faster. When the jets under mixture have all been turned...

Chemical News and Journal of Industrial Science, Томове 59–60

1889 - 688 страници
...jets under the 12-inch layer of oxide, heat gently for a few moments to drive out any moisture which may be present, and bring to red heat. Heat gradually...have all been turned on, light jets under layer of oxide at end of tube. When evolution of gas has ceased turn out all the lights except those under the...

Principles and Practice of Agricultural Analysis: Fertilizers

Harvey Washington Wiley - 1895 - 350 страници
...will escape into the azotometer. Light the gas under the thirty centimeter layer of oxid, heat gently for a few moments to drive out any moisture that may be present, and bring to a red heat. Heat gradually the mixture of substance and oxid, lighting one jet at a time. Avoid a too...

Methods of Analysis Adopted by the Association of Official Agricultural ...

Association of Official Agricultural Chemists (U.S.) - 1899 - 96 страници
...the bubbles will escape into the azotometer. Light the gas under the 30 cm layer of oxid, heat gently for a few moments to drive out any moisture that may be present, and bring to a red heat. Heat gradually the mixture of substance and oxid, lighting ouejet atatime. Avoid a too...

Bulletin - Bureau of Chemistry, Брой 107

United States. Bureau of Chemistry - 1908 - 300 страници
...the bubbles will escape into the azotometer. Light the gas under the 30 cm layer of oxid, heat gently for a few moments, to drive out any moisture that may be present, and bring to a red heat. Heat gradually the mixture of substance and oxid, lighting one jet at a time. Avoid a too...

Official and Provisional Methods of Analysis, Association of Official ...

Association of Official Analytical Chemists. Committee on Revision of Methods - 1910 - 304 страници
...the bubbles will escape into the azotometer. Light the gas under the 30 cm layer of oxid, heat gently for a few moments, to drive out any moisture that may be present, and bring to a red heat. Heat gradually the mixture of substance and oxid, lighting one jet at a time. Avoid a too...

Official and Tentative Methods of Analysis, Том 1

Association of Official Analytical Chemists - 1920 - 438 страници
...lighting a jet at a time. Avoid a too rapid evolution of bubbles, which should be allowed to escape at the rate of about one per second or a little faster. When the burners under the mixture have all been turned on, light the gas under the" layer of oxid at the end...




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