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Hi guys, Recently I got into silver refining using nitric acid prior to melting, which worked great and resulted in 95-98% pure silver. However recently in my country nitric acid (among many other chemicals) has been banned for personal use and have become next to impossible to get your hands on.

Refining Electronic Scrap---- Can't get nitric acid any more

Jul 18, 2019· got myself a nice reagent bottle of 70% nitric 2.5L for $40 plus tax. cheapest place by far. I'm sure the barrel cost is good, didn't ask, I'm not that hardcore yet to need that much seeing as how they go for like $100-200 a 2.5L bottle on eBay or amazon, shoot you could make some good money re-selling it from them! FYI.

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Nitric Acid Used In Gold Refining. Pure silver is seldom found outside of a jewelry store, but impure silver is all around, and those impurities can be refined out rather easily, provided you take all the necessary precautionsefining silver without resorting to the use of a large smelting oven requires the use of nitric acid, so safety is still as.

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to drop the silver out of the nitric acid use common uniodized table salt. add the salt slowly,you will begin to see a white mud or curd begin to fall from the liquid. add salt in 15-20 minute intervals until no more silver falls. pour off the liquid and save the white mud,rinse the mud with distilled water.

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Mar 25, 2009· i was told that i could make nitric acid by mixing 1qt sulfuric acid +1/2 cup sodium nitrate. i am new to refining and need all the info i can find. i am guessing that i can buy hydrochloric at an auto parts store because i think it is used in car batteries. but i want to buy the acids/chemicals already made to make it as easy as possible during my first few attempts at refining. i have pounds ...

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Recycling gold from scrap PC boards 2003. ... I am curious what is the best route to take for refining the gold (and other metals) off of these boards in order to get more value for them. ... filter using a distilled water spray and wash the sludge in the filter with a distilled water spray to reclaim all the Gold Chloride. Nitric Acid (HNO3 ...

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Refining Electronic Scrap---- Can't get nitric acid any more. A discussion started in 2006 but continuing through 2018. 2006. Q. I've been working electronic scrap for over 20 years now as a hobby. I used nitric and distilled water to get rid of most base metals and then refined with aqua regia as normal.

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Australia Nitric Acid Market - Insights. Nitric acid is fuming, colorless, and highly corrosive liquid that is widely used across various Industries. It is highly toxic in nature and cause severe burn injury. They are primarily used in the production of fertilizers such as nitro …

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Dec 19, 2017· Gold Purify Machine,Gold Refining Machine,Silver Refining Gold refining machine, the recovery can be as high as 99%, and the concentrating ratio is up to 1,000 times. In recovering the natural gold in lode ore with size 0. 074mm, the gold is up to 98%, For 0.004mm in particle size, the gold recovery is 97%. ...

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Jun 19, 2012· In this video I show you an easy source to get a decent volume of nitric acid on the cheap. This idea was originally sourced from Myst32YT so give him some love too.

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add the nitric substitute acid ,just enough to cover the materials. without heating the bath it will take 3 to 10 days for the acid to desolve all the non-gold metals. if you heat the bath it can be finished in hours instead of days. pour off the bath through a paint filter to catch the gold flakes and pins that are floating.

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Platinum is also used to catalyze nitric acid and gasoline; increasing the octane levels in fuel. In the electronics industry, platinum crucibles are used to make semiconductor crystals for lasers, while alloys are used to make magnetic disks for computer hard drives and switch contacts in automotive controls.

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How to Refine Gold With Nitric Acid | Sciencing. May 23, 2018· Though gold is valuable, the most common sources of gold are rarely pure. Whether it is freshly mined gold ore or a refined gold used in jewelry, contaminants and unwanted minerals are usually present. Nitric acid can be used to refine gold, but you must be careful during the process.

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RECOVERY AND REFINING WITH JUST NITRIC ACID SUBSTITUTE. add the nitric substitute acid ,just enough to cover the materials. without heating the bath it will take 3 to 10 days for the acid to desolve all the non-gold metals. if you heat the bath it can be finished in hours instead of days. pour off the bath through a paint filter to catch the gold flakes and pins that are floating.

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Calcined bauxite is one of the principal ore of aluminum. Calcined bauxite contains hydrous aluminum oxides and aluminum hydroxides, formed through the laterization of aluminous rocks in tropical and subtropical areas .Calcined bauxite is obtained by calcining (heating)superior grade bauxite at high temperature (from 85oc to 1600c) .This removes moisture thereby increasing the alumina content.

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Buy high quality Calcined Bauxite For Chemical Industry by Henan Hongtai Kiln Refractory Co., Ltd.. Supplier from China. ... Nitric Acid ... Our uncompromising attitude has grown many folds to cater to various industries viz. Mining (ore refining/gold mining & refineries), oil well drilling/refineries, water treatment, soap & detergent ...

How To Clean Gold with Nitric Acid

Gold acts like a sponge and absorbs nitric acid. This enables the nitric acid to clean the gold, such as gold nuggets or free gold taken from black sands. Most gold found in nature contains other metals, but some of these cannot be taken down in nitric acid (such as the platinum family).

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Though gold is valuable, the most common sources of gold are rarely pure. Whether it is freshly mined gold ore or a refined gold used in jewelry, contaminants and unwanted minerals are usually present. Nitric acid can be used to refine gold, but you must be careful during the process.

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For this reason, if you're using nitric acid, it must be done outdoors, away from anything that may be damaged by exposure to these fumes. If you're using a nitric acid substitute, it should still be outdoors, or within a self-contained system that neutralizes fumes. Refining large quantities? See: Large Scale Gold Refining by Aqua Regia Acid ...

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recovery and refining with just nitric acid substitute 10 may 2017 recovery and refining with just nitric acid substitute. ... how can you refine with ... if your bath has real fine gold dust that escapes through the …

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