Chemical News and Journal of Physical Science, Tom 103Chemical news office., 1911 |
Z wnętrza książki
Wyniki 1 - 5 z 100
Strona
... weight of raw oil , by more than One Shilling . 2. The Varnish must be clear and transparent after setting . 3. The setting of the Varnish in a warm place must not take more than five days . 4 . The drying of the Varnish on a smooth ...
... weight of raw oil , by more than One Shilling . 2. The Varnish must be clear and transparent after setting . 3. The setting of the Varnish in a warm place must not take more than five days . 4 . The drying of the Varnish on a smooth ...
Strona 1
... weight of potassium required was about ten times that called for by the equa- tion C6H5Cl + 2K + C2H5OH - C6H6 KC1 C2H5ÖK . ( Stephanoff's method calls for twenty - five times the theoretical amount of sodium ) . • A small amount of ...
... weight of potassium required was about ten times that called for by the equa- tion C6H5Cl + 2K + C2H5OH - C6H6 KC1 C2H5ÖK . ( Stephanoff's method calls for twenty - five times the theoretical amount of sodium ) . • A small amount of ...
Strona 2
Weight taken . Grm . Per cent of chlorine found . Chlorbenzol , 31.52 per cent Chlorine . But since- Per cent error . VI V2 - = r and tx t2 V1 V2 = Y. 123 ÷ ĥo Noo I. 0 * 4036 31.62 2 . 0.3533 31.46 + 0'I - 0.06 then- 3 . 0.4181 3151 4 ...
Weight taken . Grm . Per cent of chlorine found . Chlorbenzol , 31.52 per cent Chlorine . But since- Per cent error . VI V2 - = r and tx t2 V1 V2 = Y. 123 ÷ ĥo Noo I. 0 * 4036 31.62 2 . 0.3533 31.46 + 0'I - 0.06 then- 3 . 0.4181 3151 4 ...
Strona 14
... weight of raw oil , by more than One Shilling . 2. The Varnish must be clear and transparent after setting . 3. The setting of the Varnish in a warm place must not take more than five days . 4. The drying of the Varnish on a smooth ...
... weight of raw oil , by more than One Shilling . 2. The Varnish must be clear and transparent after setting . 3. The setting of the Varnish in a warm place must not take more than five days . 4. The drying of the Varnish on a smooth ...
Strona 15
... weight of platinum in this electrode is about 5 grms . For copper determinations a cathode of silver was used ; for zinc determinations one of nickel was employed . In the former case the electrolytic deposit was readily removed at the ...
... weight of platinum in this electrode is about 5 grms . For copper determinations a cathode of silver was used ; for zinc determinations one of nickel was employed . In the former case the electrolytic deposit was readily removed at the ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
absorption acetic acid action alcohol alkali alloy amalgam ammonia ammonium amount Analysis apparatus atomic weight B.Sc boiling bromine calcium carbon cent Chem CHEMICAL NEWS Office chemists chloride CLERKENWELL ROAD cobalt colour compounds concentrated condenser containing copper crucible crystalline crystals D.Sc determined dilute dioxide dissolved Edition electric electrolyte ether ethyl evaporated experiments Farringdon Street formed fractions G. S. Newth gases grms heat hydrate hydrazine hydrochloric acid hydrogen Inorganic Laboratory liquid London Manufacture melting mercury metal method mgrms mixture molecular molecules neodymium Newcastle Street nitrate nitric acid nitrogen obtained Organic Chemistry oxide oxidising oxygen paper Physical platinum post free potassium Practical praseodymium precipitate prepared present pressure Prof pure quantity radium reaction reagent residue Royal salt silver Sir William Crookes Society sodium soluble solution solvent substance sulphate sulphuric acid temperature Text-book tion tube vapour volume W. H. Perkin zinc ΙΟ