DE848134C - Process for cleaning objects made of precious metals with the aid of alkaline solutions - Google Patents

Process for cleaning objects made of precious metals with the aid of alkaline solutions

Info

Publication number
DE848134C
DE848134C DEF252A DEF0000252A DE848134C DE 848134 C DE848134 C DE 848134C DE F252 A DEF252 A DE F252A DE F0000252 A DEF0000252 A DE F0000252A DE 848134 C DE848134 C DE 848134C
Authority
DE
Germany
Prior art keywords
precious metals
aid
alkaline solutions
objects made
cleaning objects
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
DEF252A
Other languages
German (de)
Other versions
DE1626332U (en
Inventor
Anna Fanz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEF252A priority Critical patent/DE848134C/en
Application granted granted Critical
Publication of DE848134C publication Critical patent/DE848134C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/20—Other heavy metals

Description

Verfahretl zum Reinigen von Gegenständen aus Edelmetallen mit Hilfe alkalischer Lösungen i#1 llek;ltlltt. ( @el-;ite au: I':@lelntel@tllett, r. I1. :ill@crtles I':Li'lesteck. in alkalis:@hctl Laugell, 1)ei- @l(iel@\\\i@e ilt eitler hrillc11 l.üstlltg \-c111 #Snda Oller \on @atriuml»carlnnlat, bei Gegenwart von -\ltiitti- Illtlill i;1 reill@@@il. 1':s i#t alloll liekalitl2. s(llillc11 1.t>,- '1111,-('11 L'illl'11 I@at;ll\#;tt(lr. \\i(' 11()lzk(lllle. ;ll;ti\C# L\@tllil' m'.11'1" a1;2'.\v' I\1C'@l'I@:L,l1-C' "/.tllll@C'L"/.l'(1. 1)c111 \-uriallretl 11;111e11 \-er@cltielletlc \1ii11@C'l all. 1t. a. @la: .\1t#iilei@lell wlu Ivlmcl;en, \wlrhe (he ;;crei- nigtcll l @tell@t(i11ilC' illlt e:llein milchigen N Leder @i 111m ül)errieltetl. der durch Nachsl>iilen mit heilem \\ a@:#ul- \\ i(-lur untivl-Iit wurden intll3, Odur @l<ts All- dur I1:ü111c. \\elclles sich besonders für die @llilllll!@ 1111t diesen l.c@@@lil@ell al-1>C@T@@lt1C'll l@ersi>Ilell :111!i 1'.aihtelll' aL;@\\11-k2. I )i(' I :r(ii1(lull@ bezieht sich auf ein N-erfahren zurrt lZu111@('ll \@(I1 (@('('llst:il!@lc'il aus I'.@lelllle@alletl tllit Hilfe alkali:chur I.iiatnclt hui (@een\\-art von .\ltl- tltinitint mlcr -\lttlcgicrtttlheti, welches htzweckt, (lie cr\\:ihnte'll Nachteile ähnlicher Verfahren zu he- und darüher hinaus die reiniell(le \\-irkullg 1('r lJ-)sung zu verbessern. I 1a# 11C'tte \ 'erfahren besteht (larill, als alkalisches \l i t tel N atritltnac etat Zu \-er\\-en(lrn. 1)ie illit die- \I iltel hergestellte Uist-lng hesitzt (1e11 \ 01-1e11, d:tli >ich praktisch lceiii -Niederschlag bildet, der nach ,1e111 11erausnehniai a115 der IZeihgL1n'g>ßL1sslgkelt an den ltciltigu"sWu haftet, so 11a13 eilte 1>estudere Nacllreiitiull@ (-litf:illt. Die Fitisllarutlg all -\rhcit u11(1 zeit ist bei diesen sich st@ütdi \\iellcrh@len@lett l#,'eiilinttttgeti Verlier \\-11-1;t die U»ung, 11l1 Gegensatz zu eilte)' @(l@lahaltiell. nicht merklich altgreifend, so da1i -.Star Etui kleinen Wunden all (letl 11<iil(letl keine tut- angenehmen Einwirkungen entstehen. Scllließlich ist noch die verbesserte Reinigungsfähigkeit der Lösung hervorzuheben. u. a. bedingt durch den Essigsäure- restdes \atriumacetats, das den Gegenständen eine besonders hellglänzende Oberfläche verleiht. Ms Beispiel der neuen Lösung evird angeführt. (aß 1 1 heißen Wassers von etwa Ro° 5 g Natrium- acetat zugesetzt wird, wobei sich praktisch kein -Niederschlag bildet. 1-1e auf eine Alumlnltlnllmterlage gelegten und von der Lösung überspülten Gegenstände sind inner- halb 5 Glinuten gründlich geminigt und hellgrlän- zetld. Auch bei tieferer l'cmperatur ist die Reini- gungswirkung in den illcistcll Pillen befriedigend. Process for cleaning objects made of precious metals with the help of alkaline solutions i # 1 llek; ltlltt. ( @ el-; ite au: I ': @ lelntel @ tllett, r. I1. : ill @ crtles I ': Li'lesteck. in alkalis: @hctl Laugell, 1) a- @l (iel @ \\\ i @ e ilt eitler hrillc11 l.üstlltg \ -c111 #S nda Oller \ on @atriuml »carlnnlat, in the presence of - \ ltiitti- Illtlill i; 1 reill @@@ il. 1 ': si # t alloll liekalitl2. s (llillc11 1.t>, - '1111, - (' 11 L'illl'11 I @ at; ll \ #; tt (lr. \\ i ('11 () lzk (lllle.; Ll; ti \ C # L \ @tllil 'm'.11'1 "a1;2'. \ V 'I \ 1C' @ l'I @: L, l1-C '"/.tllll@C'L"/.L' ( 1. 1 ) c111 \ -uriallretl 11; 111e11 \ -er @ cltielletlc \ 1ii11 @ C'l all. 1t. a. @la:. \ 1t # iilei @ lell wlu Ivlmcl; en, \ wlrhe (he ;; crei- nigtcll l @ tell @ t (i11ilC 'illlt e: llein milky N leather @i 111m ül) received. who by resil> iiling with healing \\ a @: # ul- \\ i (-lur untivl-Iit were intll3, Odur @l <ts all- major I1: ü111c. \\ elclles especially for that @llilllll! @ 1111t this lc @@@ lil @ ell al-1> C @ T @@ lt1C'll l @ ersi> Ilell : 111! I 1'.aihtelll 'aL; @ \\ 11-k2. I) i ('I: r (ii1 (lull @ refers to an N-experienced zurrt lZu111 @ ('ll \ @ (I1 (@ ('('llst: il! @ lc'il from I'. @ lelllle @ alletl tllit Help alkali: chur I.iiatnclt hui (@een \\ - kind of. \ Ltl- tltinitint mlcr - \ lttlcgicrtttlheti, which aims (cr lie \\: ihnte'll disadvantages similar procedures to HE and beyond that the reiniell (le \\ - irkullg 1 ('r lJ- ) solution to improve. I 1a # 11C'tte \ 'experienced consists (larill, as an alkaline \ lit tel N atritltnac etat Zu \ -er \\ - en (lrn. 1) ie illit die- \ I iltel manufactured Uist-lng is seated (1e11 \ 01-1e11, d: tli> i practically lceiii precipitation forms which after , 1e111 11erausnehniai a115 der IZeihgL1n'g> ßL1sslgkelt adheres to the ltciltigu "sWu, so 11a13 hurried 1> estudere Nacllreiitiull @ (-litf: illt. The Fitisllarutlg all - \ rhcit u11 (1 time is st @ ütdi \\ iellcrh @ len @ lett l #, 'eiilinttttgeti Lose \\ - 11-1; t die U "ung, 11l1 as opposed to hurried) ' @ (l @ lahaltiell. not noticeably old-reaching, so da1i -.Star case small wounds all (letl 11 <iil (letl no tut- pleasant effects arise. Ultimately it is nor the improved cleanability of the solution to highlight. partly due to the acetic acid rest of the \ atrium acetate, which gives the objects a gives a particularly bright, glossy surface. An example of the new solution is given. (ate 1 liter of hot water of about 5 g sodium acetate is added, with practically no - Precipitation forms. 1-1e placed on an aluminum sheet and Objects washed over by the solution are inside half past five minutes thoroughly reduced and light green zetld. Even at a lower temperature, the cleaning positive effect in illcistcll pills.

Claims (1)

P A T E N T A N S P K U C H Verfahren zum Reinigen von Gegenständen aus Edelmetallen mit 1 lilfe alkalischer Lö sungen bei Gegelm-art von Aluminium oder Aluminium- legierungen, dadurch gekennzeichnet. daß als alkallsches IHM @@tT1"I@IIlla@etat \"C'1'l@"e11d@t wird.
P A T EN T A NSP KU CH Method of cleaning objects Made of precious metals with 1 liter of alkaline solutions in case of gel-type of aluminum or aluminum alloys, characterized. that as alkallian IHM @@ tT1 "I @ IIlla @ etat \"C'1'l @ "e11d @ t will.
DEF252A 1949-11-06 1949-11-06 Process for cleaning objects made of precious metals with the aid of alkaline solutions Expired DE848134C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF252A DE848134C (en) 1949-11-06 1949-11-06 Process for cleaning objects made of precious metals with the aid of alkaline solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF252A DE848134C (en) 1949-11-06 1949-11-06 Process for cleaning objects made of precious metals with the aid of alkaline solutions

Publications (1)

Publication Number Publication Date
DE848134C true DE848134C (en) 1952-09-01

Family

ID=7082290

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF252A Expired DE848134C (en) 1949-11-06 1949-11-06 Process for cleaning objects made of precious metals with the aid of alkaline solutions

Country Status (1)

Country Link
DE (1) DE848134C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120244B (en) * 1953-10-22 1961-12-21 Design And Res Ct For The Gold Process for removing the tarnish layers on silver objects

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120244B (en) * 1953-10-22 1961-12-21 Design And Res Ct For The Gold Process for removing the tarnish layers on silver objects

Similar Documents

Publication Publication Date Title
DE848134C (en) Process for cleaning objects made of precious metals with the aid of alkaline solutions
DE833442C (en) Process for the production of gummed, single-layer paper
DE857107C (en) Fluorescent screen for cathode ray tubes
DE528004C (en) Process for the production of wood wool tubes
DE622465C (en) Process for the production of a firing base for porcelain mantle crowns
DE438793C (en) Electrode for measuring the concentration of H. ions in living organisms
DE723650C (en) Process for the production of a firing base for porcelain mantle crowns or fillings
DE663311C (en) Process for the production of an insulating compound for dynamo sheets, transformer sheets and. like
DE569473C (en) Contact cleaning process
DE630224C (en) Photographic lens
DE561337C (en) Process for the production of photocells by glass electrolysis
DE549524C (en) Process for aging spirits and their blends, in particular brandy
DE560488C (en) Process for cooling hollow glass objects
DE831242C (en) Process for the preparation of chemotherapeutically active derivatives of p-aminobenzoic acid amide
DE597361C (en) T-shaped branch pipe
DE652212C (en) Process for producing a putty-free base attachment to electric light bulbs
DE453769C (en) Process for the preparation of dyes of the anthracene series
DE107442C (en)
DE397384C (en) Process for the production of a compound for ignition stones for lighters
DE584775C (en) Process for the treatment of gas mixtures that are relatively poor in saturated hydrocarbons
DE463263C (en) Process for making blueprints and photocopies
DE621495C (en) Method for checking sound recordings produced by resynchronization
DE682642C (en) Process for the preparation of water-soluble compounds of the aromatic series
DE697804C (en) Process for the production of nitrosamines
DE743323C (en) Process for the production of concave curved projection screens