DD240915B1 - CYANIDE-FREE BATH FOR THE ELASTIC SEPARATION OF HARD GOLD LAYERS - Google Patents
CYANIDE-FREE BATH FOR THE ELASTIC SEPARATION OF HARD GOLD LAYERS Download PDFInfo
- Publication number
- DD240915B1 DD240915B1 DD25845583A DD25845583A DD240915B1 DD 240915 B1 DD240915 B1 DD 240915B1 DD 25845583 A DD25845583 A DD 25845583A DD 25845583 A DD25845583 A DD 25845583A DD 240915 B1 DD240915 B1 DD 240915B1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- gold
- cyanide
- solutions
- electroless
- deposition
- Prior art date
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- Chemically Coating (AREA)
Description
-2- 240 Ausführungsbeispiele-2- 240 embodiments
Die Erfindung wird anhand von drei Ausführungsbeispielen weiter erläutert:The invention will be further explained with reference to three exemplary embodiments:
1. Beispiel Au (als Na3Au(SO3I2) 5 g/lExample 1 Au (as Na 3 Au (SO 3 I 2 ) 5 g / l
HCHO 0,5 g/lHCHO 0.5 g / l
Ethylendiamin 1,3 g/lEthylenediamine 1.3 g / l
EDTA-di-Na-Salz 0,7 g/lEDTA di-Na salt 0.7 g / l
Natriumeitrat 23 g/lSodium citrate 23 g / l
Ammoniumchlorid 47 g/l TKaIsTINO3) 1 mg/1Ammonium chloride 47 g / l TKaIsTINO 3 ) 1 mg / l
Temperatur 70°CTemperature 70 ° C
Härte: HVo.ooi 215 Bürstenübergangsspannung 4,3 mVHardness: HVo.ooi 215 brush transition voltage 4.3 mV
2. Beispiel Au (als Na3Au(SO3I2) 2,0 g/lExample 2 Au (as Na 3 Au (SO 3 I 2 ) 2.0 g / l
HCHO 0,3g/lHCHO 0.3g / l
Na2SO3 22,0 g/l Ethylendiansin 4,3 g/lNa 2 SO 3 22.0 g / l ethylenedianine 4.3 g / l
EDTA-di-Na-Salz 0,9 g/lEDTA di-Na salt 0.9 g / l
TKaIsTINO3) 25mg/l pH(NaOH) 9,0TKaIsTINO 3 ) 25mg / l pH (NaOH) 9.0
Temperatur 92 0CTemperature 92 ° C
Härte: HVo,OOi 200 Bürstenübergangsspannung 4,3 mVHardness: HV o , OO i 200 Brush transition voltage 4.3 mV
3. Beispiel Au (als Na3Au(SO3J2) 2,5 g/lExample 3 Au (as Na 3 Au (SO 3 J 2 ) 2.5 g / l
Na2SO3 50,0 g/lNa 2 SO 3 50.0 g / l
Triethanolamin 15,0g/l TKaIsTINO3) 0,5 g/lTriethanolamine 15.0 g / l TKaIsTINO 3 ) 0.5 g / l
HCHO 10,5 g/l Hydrazinsulfat 0,7 g/lHCHO 10.5 g / l hydrazine sulfate 0.7 g / l
N-Methyl-Benzthiazoliumjodid 0,5 g/lN-methylbenzothiazolium iodide 0.5 g / l
pH(NaOH) 9,0pH (NaOH) 9.0
Temperatur 92 0CTemperature 92 ° C
Härte: HVOlOoi 225 Bürstenübergangsspannung 4,3 mVHardness: HV OlO oi 225 brush transition voltage 4.3 mV
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD25845583A DD240915B1 (en) | 1983-12-22 | 1983-12-22 | CYANIDE-FREE BATH FOR THE ELASTIC SEPARATION OF HARD GOLD LAYERS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD25845583A DD240915B1 (en) | 1983-12-22 | 1983-12-22 | CYANIDE-FREE BATH FOR THE ELASTIC SEPARATION OF HARD GOLD LAYERS |
Publications (2)
Publication Number | Publication Date |
---|---|
DD240915A1 DD240915A1 (en) | 1986-11-19 |
DD240915B1 true DD240915B1 (en) | 1988-05-25 |
Family
ID=5553366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD25845583A DD240915B1 (en) | 1983-12-22 | 1983-12-22 | CYANIDE-FREE BATH FOR THE ELASTIC SEPARATION OF HARD GOLD LAYERS |
Country Status (1)
Country | Link |
---|---|
DD (1) | DD240915B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4020795C1 (en) * | 1990-06-28 | 1991-10-17 | Schering Ag Berlin-Bergkamen, 1000 Berlin, De |
-
1983
- 1983-12-22 DD DD25845583A patent/DD240915B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DD240915A1 (en) | 1986-11-19 |
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