• Please join our new sister site dedicated to discussion of gold, silver, platinum, copper and palladium bar, coin, jewelry collecting/investing/storing/selling/buying. It would be greatly appreciated if you joined and help add a few new topics for new people to engage in.

    Bullion.Forum

Non-Chemical can use smb and urea at same time?

Shop deals on ebay
xelexo
shop deals on amazon
Advertise with us
Gold Refining Forum

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
S

sugush01

Member
Joined
Dec 9, 2008
Messages
11
Location
malaysia
i have download the file that shows step by step process of refining? shall i use urea and smb in one time? anyone can help?
 
not same time, Urea is to rid the nitric from Aqua regia, add small amounts till no more fizz,when warmed and PH>1, then dilut solution with water 3 to 4 times, let sit overnight. decant ,filter liquid then use SMB.
boiling off nitric works well very also, if you can not get urea.
 

Latest posts

Back
Top