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" ... should be removed from the bath and shaken to and fro until the frothing disappears. The last traces of alcohol vapor may be removed from the flask by waving it briskly, mouth down, to and fro. "
Essentials of volumetric analysis - الصفحة 283
بواسطة Henry William Schimpf - 1917 - عدد الصفحات: 366
عرض كامل - لمحة عن هذا الكتاب

Bulletin - Bureau of Chemistry, الأعداد 20-29

United States. Bureau of Chemistry - 1889 - عدد الصفحات: 1396
...is removed by dipping the flasks into a sU'am hath. The steam Hhoiild cover the whole of the tlask except the neck. After the alcohol is nearly removed...the soap, and to avoid any loss from this cause or nny creeping of the soap up the sides of the flask it should be removed from the bath and shaken to...

Bulletin - Bureau of Chemistry, الأعداد 30-34

United States. Bureau of Chemistry - 1891 - عدد الصفحات: 834
...stoppers having been laid loosely in the month of the flask, the alcohol is removed by dipping the llask into a steam bath. The steam should cover the whole of the flask except the neck. After the alcohol ia nearly removed, frothing may be noticed in the soap, and to avoid any loss from this cause or асу...

Bulletin - Bureau of Chemistry, الأعداد 35-40

United States. Bureau of Chemistry - 1892 - عدد الصفحات: 790
...room temperature, ia opened. Kemoral of the almhol. — The stoppers having been laid loosely ¡11 the mouth of the flask, the alcohol is removed by...nearly removed, frothing may be noticed in the soap, aud to avoid any loss from this cause or any creeping of thesoap up the sides of the flask, it should...

Bulletin - Bureau of Chemistry, الأعداد 41-47

United States. Bureau of Chemistry - 1894 - عدد الصفحات: 1004
...fatty acids. (c) REMOVAL OF THE ALCOHOL. — (When method ( b, ) has been used for saponification.) The stoppers having been laid loosely in the mouth...noticed in the soap, and to avoid any loss from this canee or any creeping of the soap up the sides of the flask, it should be removed from the bath and...

A Systematic Handbook of Volumetric Analysis; Or, The Quantitative ...

Francis Sutton - 1896 - عدد الصفحات: 612
...loosely in the mouth of the flasks the alcohol is removed by dipping the flasks into a steam hath. The steam should cover the whole of the flask except...After the alcohol is nearly removed, frothing may he noticed in the soap, and to avoid any loss from this cause, or any creeping of the soap up the sides...

A Systematic handbook of volumetric analysis ; or, The quantitative ...

Francis Sutton - 1896 - عدد الصفحات: 612
...loosely in the mouth of the flasks the alcohol is removed by dipping the flasks into a steam bath. Tbc steam should cover the whole of the flask except the...neck. After the alcohol is nearly removed, frothing nviy bo noticed in the soap, and to avoid any loss from this cause, or any creeping of the soap up...

Commercial Organic Analysis: Part I. Fixed oils, fats, waxes, glycerol ...

Alfred Henry Allen - 1898 - عدد الصفحات: 396
...laid loosely in the mouth of the flask, the aleohol is removed by dipping the flask into a steam-bath. The steam should cover the whole of the flask except the neck. After the aleohol is nearly removed, frothing may be noticed in the soap, and, to avoid any loss from this cause...

A Systematic Handbook of Volumetric Analysis: Or, The Quantitative ...

Francis Sutton - 1900 - عدد الصفحات: 668
...stoppers having been laid loosely in the mouth of the flasks, the alcohol is removed by dipping the flasks into a steam bath. The steam should cover the whole...of the soap up the sides of the flask, it should be taken from the bath and shaken to and fro until the frothing disappears. The last trace? of alcohol...

A Systematic Handbook of Volumetric Analysis: Or, The Quantitative ...

Francis Sutton - 1901 - عدد الصفحات: 662
...stoppers haviug been laid loosely in the mouth of the flasks, the alcohol is removed by dipping the flasks into a steam bath. The steam should cover the whole...noticed in the soap, and to avoid any loss from this canse, or any creeping of the soap up the sides of the flask, it should be taken from the bath and...

Qualitative Analysis: Quantitative Analysis

1902 - عدد الصفحات: 1022
...having been laid loosely in the mouth of the flask, the alcohol is removed by dipping the flask into the steam bath. The steam should cover the whole of the...flask except the neck. After the alcohol is nearly re moved, frothing may be noticed in the soap, and to avoid any loss from this cause, or any creeping...




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