AT68722B - Process for the cathodic preparation of hydrogen peroxide. - Google Patents
Process for the cathodic preparation of hydrogen peroxide.Info
- Publication number
- AT68722B AT68722B AT68722DA AT68722B AT 68722 B AT68722 B AT 68722B AT 68722D A AT68722D A AT 68722DA AT 68722 B AT68722 B AT 68722B
- Authority
- AT
- Austria
- Prior art keywords
- hydrogen peroxide
- cathodic
- preparation
- oxygen
- gases
- Prior art date
Links
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 240000006365 Vitis vinifera Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur kathodischen Darstellung von Wasserstoffsuperoxyd.
M. Traube hat vor 30 Jahren gezeigt, dass in einem Elektrolyten gelöster Sauerstoff an der Kathode zu Wasserstoffperoxyd reduziert werden kann, nach der Gleichung :
EMI1.1
Seite 2434). Es wurden von Traube aber nur ganz schwache Ströme angewendet und auch nur ganz schwache Lösungen erhalten (zirka 0'l%), die technisch nicht verwendbar) sind, weil sich das Eindampfen zu teuer stellt.
Es wurde nun gefunden, dass man technisch verwendbare Konzentrationen, bis b"/
EMI1.2
einem Drucke von 100 Atm. mit Sauerstoff oder sauerstoffhaltigen Gasen sättigt und elektrolysiert,
Wenn man Anoden-und Kathodenraum trennt und amalgamierte Goldkathoden benutzt, so arbeitet man mit Stromdichten von 5 Amp./dm2 mit zirka 2 Volt, denn (Sie Sättigung des Elektrolyten mit Sauerstoff unter Druck setzt die Zersetzungsspannung
EMI1.3
ausbeute bis zu 900/0. Es sind auch andere Säuren und andere Salze als Elektrolyten zu gebrauchen ; weniger gut eignen sich Basen (Alkalien) hiezu. Ausser Gold ist auch anderes Kathodenmaterial verwendbar : ferner kann man stabilisierende Zusätze, wie Borsäure, machen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the cathodic preparation of hydrogen peroxide.
M. Traube showed 30 years ago that oxygen dissolved in an electrolyte can be reduced to hydrogen peroxide at the cathode, according to the equation:
EMI1.1
Page 2434). However, only very weak currents were used by Traube and only very weak solutions were obtained (about 0.1%), which cannot be used technically) because evaporation is too expensive.
It has now been found that technically usable concentrations up to b "/
EMI1.2
a pressure of 100 atm. saturates and electrolyzes with oxygen or oxygen-containing gases,
If you separate the anode and cathode compartments and use amalgamated gold cathodes, you work with current densities of 5 Amp./dm2 with about 2 volts, because (the saturation of the electrolyte with oxygen under pressure sets the decomposition voltage
EMI1.3
yield up to 900/0. Other acids and other salts can also be used as electrolytes; Bases (alkalis) are less suitable for this. In addition to gold, other cathode materials can also be used: stabilizing additives such as boric acid can also be made.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE68722X | 1912-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT68722B true AT68722B (en) | 1915-05-10 |
Family
ID=5634562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT68722D AT68722B (en) | 1912-07-26 | 1913-04-11 | Process for the cathodic preparation of hydrogen peroxide. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT68722B (en) |
-
1913
- 1913-04-11 AT AT68722D patent/AT68722B/en active
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