Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona 1
... amount present , and that at least four successive fusions would be neces- sary to entirely decompose the mineral . The disadvant- ages of this mode of procedure are obvious , a very large amount of alkali is employed , and much time ...
... amount present , and that at least four successive fusions would be neces- sary to entirely decompose the mineral . The disadvant- ages of this mode of procedure are obvious , a very large amount of alkali is employed , and much time ...
Strona 3
... amount of potassium bisulphate generally recommended is inconvenient when the basic matters have to be estimated , and as the bisulphate invariably loses a good deal of its sulphuric acid during the heating , there is a tendency to form ...
... amount of potassium bisulphate generally recommended is inconvenient when the basic matters have to be estimated , and as the bisulphate invariably loses a good deal of its sulphuric acid during the heating , there is a tendency to form ...
Strona 4
... amount of titanic acid with which they were mixed , by dissolving in nitric acid and evaporating to dryness on the water - bath in a platinum basin , as one would proceed for the estimation of silica . Requiring some quantities of pure ...
... amount of titanic acid with which they were mixed , by dissolving in nitric acid and evaporating to dryness on the water - bath in a platinum basin , as one would proceed for the estimation of silica . Requiring some quantities of pure ...
Strona 6
amount of oxygen consumed in a combustion averages 800 cc . In order that an idea may be formed of the rapidity and accuracy of the method , the following results may be quoted . Four combustions of succinic acid were per- formed ...
amount of oxygen consumed in a combustion averages 800 cc . In order that an idea may be formed of the rapidity and accuracy of the method , the following results may be quoted . Four combustions of succinic acid were per- formed ...
Strona 7
... amount of sodium ethylate required by the above directions . The solution , diluted with water and acidified , was found to contain no less than 25 per cent of the amount of sodium chloride corresponding to the hexachloro - benzene used ...
... amount of sodium ethylate required by the above directions . The solution , diluted with water and acidified , was found to contain no less than 25 per cent of the amount of sodium chloride corresponding to the hexachloro - benzene used ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic action alcohol alkali ammonia ammonium amount analysis antimony apparatus aqueous atomic weight B.Sc Bakelite barium boiling calcium calculated carbon cent Chem chemical Chemistry chloride colour columbite compounds concentration condensation containing copper crucible crystallisation decomposed derivatives determined dilute dioxide dissolved distilled effect electric electrodes electrolytic elements equation ether ethyl evaporated experiments extract filtered flask flour formed formula gases gives graphite grms guncotton heated hydrate hydrochloric acid hydrofluoric acid hydrogen hydroxide investigation iodine iron laboratory liquid metal method mgrm mineral mixture molecular molecules nitrate nitric acid nitrogen nitroglycerin observed obtained ordinary osmotic pressure oxalic oxalic acid oxide oxidised oxygen paper phenol platinum potassium precipitate prepared present Prof pure quantity radio-active radium reaction residue salt scandium shown silver Society sodium soluble solution solvent substance sulphate sulphide sulphuric acid tantalite tantalum tellurium temperature tion tube vapour volume yield