DE376755C - Electrolytic tin bath for the representation of sponge-free tin crystals - Google Patents

Electrolytic tin bath for the representation of sponge-free tin crystals

Info

Publication number
DE376755C
DE376755C DER57436D DER0057436D DE376755C DE 376755 C DE376755 C DE 376755C DE R57436 D DER57436 D DE R57436D DE R0057436 D DER0057436 D DE R0057436D DE 376755 C DE376755 C DE 376755C
Authority
DE
Germany
Prior art keywords
tin
sponge
free
crystals
representation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DER57436D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THERESE ROCKSCH GEB LASCHET
Original Assignee
THERESE ROCKSCH GEB LASCHET
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by THERESE ROCKSCH GEB LASCHET filed Critical THERESE ROCKSCH GEB LASCHET
Priority to DER57436D priority Critical patent/DE376755C/en
Application granted granted Critical
Publication of DE376755C publication Critical patent/DE376755C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C5/00—Electrolytic production, recovery or refining of metal powders or porous metal masses
    • C25C5/02—Electrolytic production, recovery or refining of metal powders or porous metal masses from solutions

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

Elektrolytisches Zinnbad zur Darstellung schwammfreier Zinnkristalle. Zusatz zum Patent 37019q.. Wie aus dem Hauptpatent 370I94 hervorgeht, scheidet der galvanische Strom aus einer mit Schwefelsäure oder schwefelsauren Salzen versetzten Zinnsalzlösung das Zinnmetall in großen schwammfreien Kristallen ab.Electrolytic tin bath for the representation of sponge-free tin crystals. Addition to patent 37019q .. As can be seen from the main patent 370I94, the galvanic current from a mixed with sulfuric acid or sulfuric acid salts Tin salt solution removes the tin metal in large, sponge-free crystals.

Eine gleiche Wirkung erzielt man mit Salzsäure unter den zu beschreibenden Umständen. Während es der Zweck dieses Verfahrens ist, die Bildung des Zinnschwamms zu verhindern, wird nach einem ähnlichen Verfahren dieser Schwamm, unter Vermeidung der Kristallbildung, als Rohmaterial der Silberpapierfabrikation extra dargestellt, wobei es sich naturgemäß um feinste Zerteilung und staubförmige Feinheit des Argentine benannten Stoffes handelt. Diese feine Zerteilung des Zinnes, die durch entsprechende Apparatur unterstützt wird, ist von der Konzentration, besonders aber von dem Säuregehalt des Elektrolyten abhängig, wie es in umgekehrter Weise bei der Erzeugung von Kristallen der Fall ist. Während im ersten Fall zurErzeugung eines kristallfreienSchwammes der Elektrolyt nur so viel überschüssige Salzsäure enthalten darf, als die Herstellung einer klaren, von basischem Chlorür freien Lösung erfordert, muß im anderen Fall zur Darstellung schwammfreier Kristalleder Säuregehalt ein erheblicher sein und etwa elfmal mehr betragen. Nach dem Patent von T a m a n i , >:Darstellung von schwammigem Zinn«, enthält dessen Elektrolyt im Liter 166 g kristallisches Zinnsalz und nur 169 30prozentige Salzsäure, während der Elektrolyt zur Zinnkristallbildung nach vorliegendem Verfahren im Liter Zoo g kristallisiertes Zinnsalz Sn Cl 2 -i-- 2 aq und 230 g Salzsäure von 30 Prozent H Cl enthält.The same effect is achieved with hydrochloric acid under the circumstances to be described. While the purpose of this process is to prevent the formation of the tin sponge, according to a similar process, this sponge, avoiding the formation of crystals, is specially presented as the raw material of the silver paper manufacture, which naturally involves the finest fragmentation and powdery fineness of the substance named Argentine . This fine division of the tin, which is supported by appropriate equipment, is dependent on the concentration, but especially on the acid content of the electrolyte, as is the case in reverse with the production of crystals. While in the first case the electrolyte may only contain as much excess hydrochloric acid to produce a crystal-free sponge as is required to produce a clear, basic chlorine-free solution, in the other case, in order to produce sponge-free crystals, the acid content must be considerable and about eleven times more. According to the patent by Tamani,>: Representation of spongy tin, "the electrolyte contains 166 g of crystalline tin salt and only 169 30 percent hydrochloric acid in one liter, while the electrolyte for tin crystal formation according to the present process in one liter of zoo g of crystallized tin salt Sn Cl 2 -i- - Contains 2 aq and 230 g of hydrochloric acid of 30 percent H Cl.

Zur Ausführung des Verfahrens diene folgendes Beispiel: Zoo g kristallisiertes Zinnsalz Sn Cl 2 + 2 aq, 230 g Salzsäure von 30 Prozent H Cl, 570 g Wasser.The following example is used to carry out the process: Zoo g of crystallized tin salt Sn Cl 2 + 2 aq, 230 g of hydrochloric acid of 30 percent H Cl, 570 g of water.

Claims (1)

PATENT-ANSPRUCH: Elektrolytisches Zinnbad zur Darstellung schwammfreier Zinnkristalle, dadurch gekennzeichnet, daß die freieSchwefelsäure des Patents 370I9¢ durch freie Salzsäure ersetzt wird, und zwar in solcher Menge, daß in einem Literdes Bades etwa 2oo.g kristallisiertes Zinnsalz Sn Cl 2 + 2 aq und 230 g Salzsäure mit 30 Prozent H Cl enthalten sind. PATENT CLAIM: Electrolytic tin bath for the preparation of sponge-free tin crystals, characterized in that the free sulfuric acid of patent 37019 [is replaced by free hydrochloric acid in such an amount that in one liter of the bath about 200 g of crystallized tin salt Sn Cl 2 + 2 aq and 230 g of hydrochloric acid with 30 percent HCl are included.
DER57436D 1922-12-14 1922-12-14 Electrolytic tin bath for the representation of sponge-free tin crystals Expired DE376755C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER57436D DE376755C (en) 1922-12-14 1922-12-14 Electrolytic tin bath for the representation of sponge-free tin crystals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER57436D DE376755C (en) 1922-12-14 1922-12-14 Electrolytic tin bath for the representation of sponge-free tin crystals

Publications (1)

Publication Number Publication Date
DE376755C true DE376755C (en) 1923-06-04

Family

ID=7410529

Family Applications (1)

Application Number Title Priority Date Filing Date
DER57436D Expired DE376755C (en) 1922-12-14 1922-12-14 Electrolytic tin bath for the representation of sponge-free tin crystals

Country Status (1)

Country Link
DE (1) DE376755C (en)

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