us sodium nitrate to refine gold

How to Choose Gold Smelting Flux

Sodium Nitrate. Some types of flux are good at oxidizing specific metals. Sodium Nitrate belongs to this class of flux elements. Sodium nitrate oxidizes metals like iron, copper, and zinc by liberating oxygen at a …

Silver reaction With Potassium Nitrate. | Gold Refining

Potassium nitrate KNO3 or sodium nitrate NaNO3 when mixed with sulfuric acid H2SO4 will form nitric acid and potassium or sodium sulfate. 2 KNO3 + H2SO4 --> 2HNO3 + K2SO4 Silver would form silver sulfate, only very slightly soluble (mostly silver sulfate salt in bottom of beaker). The silver sulfate is much trouble to convert back to …

How to Refine Gold by the Acid Method | Shor International

Remove from heat and add one pound of urea to the water. Despite the unpleasant name, this is just a harmless industrial chemical that has no smell and you will use to adjust the …

Gold Smelting & Refining Process

Help with Sodium Nitrate mixture

Hi, I am having a major problem Lazer steves Nitric acid procedure. Here is how i do it,.its for a 5x batch of lazer steves recipe Bring 500 ml of dstilled water to a boil I start adding 25ml of sodium nitrate at a time until all 800grams of sodium nitrate is boiling in solution . It looks like it is all mixed in solution and i even boil for a additional 10 …

Pyrometallurgy: Roasting, Smelting, Refining & Electrowinning

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Pyrometallurgy and Electrometallurgy.; OR Select a Topic that Interests you.; Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF …

making nitric acid | Gold Refining & Metal Extraction Forum

I have been making nitric for awhile now using concentrated sulphuric acid and a saturated solution of sodium nitrate and water. Since I use a fair amount of this acid, my recipe for volume is 2000 ml of distilled water, 3.4 kilograms of sodium nitrate, and 1120 ml of 98% sulphuric acid. Heat the water to boiling to dissolve all the sodium nitrate.

Sodium Nitrate

Hello ! To be more precise, i have talked in some other posts about gold refining without AR, I have tried to melt the foils in many different ways to get the gold purity higher, But my efforts were not successful and i have accepted that the AR is the only way. I have ordered some Sodium Metabisulfite, it will be here in 3 days.

Nitric acid question

First I should explain what I have done first. I started with the recipe for nitric acid of: ½ cup sodium nitrate dissolved in 16 oz hot distilled water, add 1 quart battery …

Refining Multiplication of Resources

Refining Multiplication of Resources is a guide. This guide will provide instructions and steps for maximum production of resources without having to collect or farm them (where possible). The objective is to obtain the maximum types and amounts of resources using only a Portable Refiner, Medium Refiner, Large Refiner. Some of these recipes use …

Refining Karat Gold and Silver Jewelry using …

1 - Inquarting low karat gold jewelry with silver (base metal). 2 - Silver digestion with nitric acid. 3 - Gold digestion with Aqua Regia. 4 - Gold precipitation with Sodium Metabisulfite. 5 - Washing and drying the …

Sodium Nitrate

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Gold & Platinum Refining by the Salt Water Method

Sodium metabisulfite. Sodium metabisulfite is an affordable and effective selective precipitant for gold. This chemical can recover up to 99.95% of pure gold when the precipitated gold is thoroughly rinsed. It works well even at room temperature. Learn more › …

Gold Refining Methods

This ancient Gold Refining method is one in that the nitre must be " projected " upon the gold just before it melts, as it has little effect on molten gold. The …

Guidelines on flux calculation gold smelting

Furthermore use of sodium rather than potassium nitrate is advised, and the presence of moisture in the crucible charge should be avoided. At an addition of merely 1 to 3kg flux …

sodium nitrate | Gold Refining & Metal Extraction Forum

The simplest way to look at this is the ratio of NaNO3 to HNO3. 85 grams NaNO3 / 63 grams HNO3 = ~1.35 So whatever your molar mass of nitric acid needed just multiply 1.35 to get the mass of Sodium Nitrate needed. Be sure to correct for percentage concentration. For example: If 1 liter of 70% HNO3 weighs 1420 grams then the mass of …

Gold Precipitation Methods

ZINC-DUST PRECIPITATION OF GOLD. For many years precipitation by zinc dust, as by the Merrill-Crowe process, has been recognized as the most efficient and economical method of precipitating gold and silver from cyanide solutions.Embodying precipitate filters of the plate-and-frame type, of the vacuum-leaf type, or of the more …

SODIUM NITRATE vs POTASSIUM NITRATE

>>Do I use the same amount of KNO3 as the NaNO3? In essence, how many grams of potassium nitrate is required vs sodium nitrate to make 1 liter of aqua regia? Thank you in advance! << You need to use a slightly different amount. The equivalent amount of potassium nitrate is 269.772g.

Infinite Refiner Loop

3400 Chromatic Metal (Suggest Refining Silver, Gold and Indium to obtain) 1700 Sodium Nitrate (Suggest Looping 50 Sodium & 50 Sodium Nitrate to Destabilised Sodium, to 150 Sodium Nitrate, to 100 of Each Sodium & Sodium Nitrate to obtain) ... Your site offered us with valuable information to work on. You've done an impressive job

Sodium nitrate and HCl issue | Gold Refining & Metal …

Hi there, Been trying to make some nitric acid with sodium nitrate. But there is the problem, whenever I add HCl to sodium nitrate it bubbles and s out of the beaker. I'm suspecting my so called sodium nitrate is something else.

Sodium Nitrate | Gold Refining & Metal Extraction Forum

This is a question for fellow Canadians (or Canadiens for those who are of French descent). I am looking to make a batch of poor mans AR. I want to know if anyone knows where I can get some sodium nitrate locally. I am also looking for Sodium Metabisulfite and Urea pellets. I have ordered...

Silver refining to 999 fine

Many people go with 30-35% nitric, or 1:1 ratio. Use larger beaker than you need. If it , it wont make it through the edge best is not to cross 50-60% of the vessel volume. Rough estimate is cca 35-45 ml of conc. nitric for ozt of silver.

alternative to nitric acid

I would then look for a fertilizer called nitrate of soda (sodium nitrate, NaNO3). If i could not find that, I would try to find a stump killer that has a composition of potassium nitrate (KNO3) Then I would try to find sulfuric acid (battery acid [low concentration of H2SO4] or drain cleaner thats in a bottle, inside its own bag. [its 98% ...

Sodium nitrate..

So im having a problem finding nitric acid. I eas distilling it from potassium nitrate and sulfuric acid. But i broke my glass tarp anyways so untill i get a new one. I need a nitric source. So does sodium nitrate which says its a nitric acid subsitute work? Or should i just wait till i can make...

Experiment precipitating gold out of solution 3 ways

This was continued until the solution dropped the gold. observations: when the flakes were added, they would turn black immediately from a reaction taking place. as more was added, the solution would turn dark brown and gold would precipitate, but get dissolved back into solution. after continuing to add the sodium hydroxide, the solution ...

Guidelines on flux calculation gold smelting

Furthermore use of sodium rather than potassium nitrate is advised, and the presence of moisture in the crucible charge should be avoided. At an addition of merely 1 to 3kg flux per kg steel wool, the flux will generally produce dore buttons containing around 3/1000 parts iron from dore loaded steel wool cathodes containing even up to 70% iron ...

difference between soda of nitrate and sodium nitrate? | Gold Refining …

ok given that there isn't much of a difference between the 15-0-0 and the 16-0-0 versions of sodium nitrate which is better? and what are the specs for technical grade sodium nitrate? I've seen that too for about $20 for 5 lbs. where are I have found the 15-0-0 and the 16-0-0 soda of nitrate for about $5 for 4 lbs.

Gold & Platinum Refining by the Salt Water Method

Sodium metabisulfite. Sodium metabisulfite is an affordable and effective selective precipitant for gold. This chemical can recover up to 99.95% of pure gold when the precipitated gold is thoroughly rinsed. It works well …

Can sodium nitrate be used in the place of nitric acid ... | Gold

The other option is that I read that nitric acid is made from combining sodium nitrate and sulfuric acid, I could also do this if someone can tell me the process. I have some 80% sulfuric acid (I assume it will have to be watered down cuz the person I read used battery acid which is closer to 30% I believe) but anyway any help with this would ...

Sodium Nitrate

Sodium Nitrate can be found in large yellow minerals on many planets, which require an Advanced Mining Laser to mine. It can also be created by refining Sodium . Refining Sodium Nitrate