The Gem and Jewelry World's foremost Resource on The Internet.
Re: [Orchid] Gilding with gold chloride  
  [Thread Prev] [Message Prev]      [Date Index]   [Thread Index]      [Message Next] [Thread Next]
From: kalanidhi2nd
Date: Wed Dec 21 03:33:07 2005
 
     
========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

hello Raja,

>     I went through the depletion gilding page and I aminterested in 2
>     things. First, can metals be gilded with AuCl3 without precipiting
>     the gold powder like gold is gilded onporcelian by fire gilding. 

    regarding your first question, in India the gold jewellery polishers
    (mainly Bengalis) used two types of processes: 

    a) Depelation (in local lingo Chatka) where in the alloy on the
    surface gets dissolved in hot acid pickle and pure gold remain. 

    b) the other process (Rang) where in the gold on the surface too
    gets dissolved (presumably in Aqua Regia and becoming AuCl) and the
    same gold gets deposited on the surface by addition of some salts or
    other chemical. 

    since i personally have not done either of the processes, i dont know
    much about the process in detail. but i think you may find some
    Bengali polishers in Kathmandu and know more from them. they may be in
    and around the jewellery market in your area. 

thanks,
Hitesh Satikunver
Tanvi Arts
Mumbai (India)

____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________

  Click to Visit  
     
  Navigate:  
   
  Orchid Resources:  
   Join & Post
 Invite a friend to join Orchid
 F.A.Q
 Galleries
 BenchExchange
 Orchid Message Archives [Subject Index] [Date Index]

Ganoksin now offers a number of ways for you to stay on top of the latest from Orchid!

  1. My Yahoo - Do you have a My Yahoo page? If so, you can easily read the latest Orchid posts on your personalized page by adding this feed:Add Orchid to My Yahoo!
  2. Add Orchid to myGoogle Add to my Google
  3. Read Orchid with NewsGator and Microsoft Outlook Add Orchid to Your  NewsGator
Support Orchid! - If you believe in what we're doing, you can help!

 
     
     

© Copyright 1996 - 2008, The Ganoksin Project