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DE623043C - Luestersud - Google Patents

Luestersud

Info

Publication number
DE623043C
DE623043C DEG89338D DEG0089338D DE623043C DE 623043 C DE623043 C DE 623043C DE G89338 D DEG89338 D DE G89338D DE G0089338 D DEG0089338 D DE G0089338D DE 623043 C DE623043 C DE 623043C
Authority
DE
Germany
Prior art keywords
luestersud
solution
luster
sodium thiosulphate
brew
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
DEG89338D
Other languages
English (en)
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.)
GEORG GROSS DR
Original Assignee
GEORG GROSS DR
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 GEORG GROSS DR filed Critical GEORG GROSS DR
Priority to DEG89338D priority Critical patent/DE623043C/de
Application granted granted Critical
Publication of DE623043C publication Critical patent/DE623043C/de
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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  • Lüstersud In dem Hauptpatent 6z2 728 ist ein Lüstersud zum Färben von Metallen beschrieben, der aus einer Lösung von 15 bis 25 g Natriumthiosulfat und r,5 bis 7,6 g Bleiacetat in loo ccm Wasser, mit oder ohne Zusatz schwach dissoziierter organischer Säuren und Salze, besteht.
  • Bei weiterer systematischer Durcharbeitung dieser Erfindung erwies es sich als vorteilhaft, den Gehalt der Lösungen an Natriumthiosulfat über die in dem Hauptpatent genannte Grenze von 259 auf r oo ccm Lösung zu steigern. Hierdurch wird die Ausbeiute der Lösung verbessert. Die Erhöhung des Thiosulfatgehalts erfolgt zweckmäßig bis zu 28 g auf loo ccm Lösung.

Claims (1)

  1. PATr,NTANSPRUCI1: --Lüstersud nach Patent 612 728, gekennzeichnet durch einen Natriumthiosulfatgehalt von 25 bis 28 g auf rooccmLösung.
DEG89338D 1934-05-20 1934-05-20 Luestersud Expired DE623043C (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG89338D DE623043C (de) 1934-05-20 1934-05-20 Luestersud

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG89338D DE623043C (de) 1934-05-20 1934-05-20 Luestersud

Publications (1)

Publication Number Publication Date
DE623043C true DE623043C (de) 1935-12-12

Family

ID=7139015

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG89338D Expired DE623043C (de) 1934-05-20 1934-05-20 Luestersud

Country Status (1)

Country Link
DE (1) DE623043C (de)

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