| 单词 | hydrogen electrode |
| 释义 | > as lemmashydrogen electrode hydrogen electrode n. (also hydrogen gas electrode) an electrode (usually of platinum coated with platinum black) partially immersed in a solution that contains hydrogen ions and hydrogen gas, so that an equilibrium between the ions and the molecules is established on the surface of the electrode enabling it to be used as a standard of zero potential (e.g. in measurements of other electrode potentials and of pH). ΘΚΠ the world > matter > chemistry > equipment or apparatus > [noun] > miscellaneous apparatus bain1477 speculum1650 filtering paper1651 wheel-fire1662 filter paper1670 sun furnace1763 respirator1789 candle-ball1794 rectifier1822 candle-bomb1823 filter1823 oxyhydrogen blowpipe1823 shade1837 graduator1839 pipette1839 thistle funnel1849 pressure tube1852 ozonizer1858 dialyser1861 Liebig condenser1861 Sprengel pump1866 Sprengel tube1866 water softener1867 mercury pump1869 Bunsen burner1870 dialysator1877 test-mixer1877 tube-condenser1877 Kipp1879 reflux condenser1880 policeman1888 converter1889 pressure boiler1891 spot plate1896 hydrogen electrode1898 sampler1902 reactor1903 fume-chamber1905 Permutit1910 microburner1911 salt bridge1915 precipitator1919 Raschig ring1920 microneedle1921 titrator1928 laboratory coatc1936 spray tower1937 precipitron1938 ion exchanger1941 potentiostat1942 chemostat1950 Knudsen pipette1951 pH-stat1956 cryopump1958 1898 Jrnl. Chem. Soc. 74 ii. 89 A similar method may be used in the titration of acids and bases, if a hydrogen electrode be employed..being made of gold electrolytically coated with palladium. 1942 S. Glasstone Introd. Electrochem. x. 352 The hydrogen gas electrode cannot be employed in solutions containing oxidizing agents. 1964 R. G. Bates Determination of pH ix. 230 The hydrogen electrode is the ultimate standard for the determination of pH values, but..other electrodes reversible to hydrogen ion are commonly employed for routine pH measurements. < as lemmas |
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