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HOW PURE IS YOUR GOLD?



24 karats = 100 percent gold
22 karats = 91.75 percent gold
21 karats = 87.5 percent gold
18 karats = 75 percent gold
14 karats = 58.5 percent gold
12 karats = 50.25 percent gold
10 karats = 42 percent gold
9 karats = 37.8 percent gold
8 karats = 33.75 percent gold

How to refining pure gold  24k



Gold refining

This refers to processes used to processes used to extract and separate the precious metals in mined material, doré, and from recycled products (jewellery and electronics).


The main techniques used to remove the final impurities to create high caratage gold

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How to refining gold scrap into pure gold bar 24k | aqua regia process at home




Hello, friends How to refining gold scrap into pure gold bar 24k aqua regia process at home. Today I have a way to do pure gold bars 24k from gold scrap. sometimes you may want to make some extra money by refining your own gold at home, or you may be a jeweler who wants to refine gold in-house. There are multiple ways to refine gold on a small scale as long as you take appropriate safety measures. This article will teach you to refine gold using the aqua regia method. Start by reducing the size of gold to smaller. Melt gold, pour gold while melting through a 2 mm sieve into the water. Reducing the size of gold to smaller Will help in the process of aqua regia to make gold into the solution more quickly. aqua regia is composed of 2 chemical substances, 1 nitric acid, 3 hydrochloric acid mixed together. Ratio between gold alloy and acid aqua regia Gold alloy 50 grams, using acid aqua regia 200 ml From my experiment When gold alloy Was made into a solution at a temperature of 90 Celsius to reach saturation point fit. should neutralize easy to make gold precipitation. Operational safety Wear the protective clothing could include gloves, protective eyewear, a mask, a long sleeved shirt and long pants. Take precautions to avoid exposure by the principal routes, that is, contact with skin and eyes, inhalation, and ingestion. Proper ventilation is required This precipitant has a very strong, pungent, acid odor and is corrosive. Use sodium metabisulfite precipitate gold out of a aqua regia solution. You will get gold sludge powder looks like mud. Sodium metabisulfite (also known as sodium bisulfite) 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. I will show you the strange change of gold mud. Use sodium mixed with water slowly added to the gold solution. You will see the formation of gold mud. Precipitated gold particles vary in size, but tend to be small and float easily in the rinse water. For this reason, special care must be taken to avoid accidentally pouring off gold with the rinse water. Use hot water to clean the sludge powder Looks like mud. Boil gold mud and hydrochloric acid 90 celsius 10 minutes. Use hot water to clean the sludge powder Looks like mud 3 times. You will get gold sludge powder Make dry use low heat To avoid splashes. Melted into cubes. Sprinkle a little borax powder. I will make a pure gold bar for beauty. I get a beautiful pure gold bar, weighing 46 grams. I hope you like our videos. Please apply for membership And share our videos To cheer. Thank you very much https://www.youtube.com/c/ArchimedesC... #goldbar #refininggold #gold24k
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mercury and aluminum reaction amalgam | mixing mercury and aluminum reaction




Aluminum + Mercury = Aluminum amalgam Aluminum amalgam is a chemical substance formed by a solution of aluminum with mercury.
Reactivity Aluminium in air is ordinarily protected by a molecule-thin layer of its own oxide. This aluminium oxide layer serves as a protective barrier to the underlying aluminium itself and prevents chemical reactions with the metal. Mercury coming into contact with it does no harm. However, if any elemental aluminium is exposed (even by a recent scratch), the mercury may combine with it to form the amalgam. This process can continue well beyond the immediately exposed metal surface, potentially reacting with a large part of the bulk aluminium before it finally ends. The net result is similar to the mercury electrodes often used in electrochemistry, except instead of providing electrons from an electrical supply they are provided by the aluminium which becomes oxidized in the process. The reaction that occurs at the surface of the amalgam may actually be a hydrogenation rather than a reduction. The presence of water in the solution is reportedly necessary; the electron rich amalgam will oxidize aluminium and reduce H+ from water, creating aluminium hydroxide (Al(OH)3) and hydrogen gas (H2).[contradictory] The electrons from the aluminium reduce mercuric Hg2+ ion[clarification needed] to metallic mercury. The metallic mercury can then form an amalgam with the exposed aluminium metal. The amalgamated aluminium then is oxidized by water, converting the aluminium to aluminium hydroxide and releasing free metallic mercury. The generated mercury then cycles through these last two steps until the aluminium metal supply is exhausted.


2 Al + 3 Hg2+ + 6 H2O → 2 Al(OH)3 + 6 H+ + 3 Hg Hg + Al → Hg·Al 2 Hg·Al + 6 H2O → 2 Al(OH)3 + 2 Hg + 3 H2 Due to the reactivity of aluminium amalgam, restrictions are placed on the use and handling of mercury in proximity with aluminium. In particular, large amounts of mercury are not allowed aboard aircraft under most circumstances because of the risk of it forming amalgam with exposed aluminium parts in the aircraft. Even the transportation and packaging of mercury-containing thermometers and barometers is severely restricted. Accidental mercury spills in aircraft do sometimes result in insurance write-offs.



Safety reminders: Do not try this at home. Mercury is a neurotoxin and should only be handled by a professional. Protection, extreme caution, and safety procedures are required. Also: “The reaction itself and the waste from it contain mercury, so special safety precautions and disposal methods are needed.” mercury and aluminum reaction amalgammercury and aluminum reaction amalgam | mixing mercury and aluminum reaction. #MercuryAndAluminum #MercuryAluminum #MercuryAluminumAmalgam

What happens when aluminium meets mercury? The answer will surprise you. video of an mix aluminum and mercury. Aluminum is normally protected by a thick oxide layer, but the formation of the amalgam disrupts it. It allows fresh aluminum to react with air to form white aluminum oxide. As the oxide grows, it forms as these cool white fibers.


Fascinating Experiments That Show What Happens When Mercury and Aluminum Are Combined
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Mercury eating gold leaf | Gold Dissolving in Mercury



What happens when mercury is poured on gold? it also is really useful to extract small gold from ore. The gold mercury amalgam can then be isolated and the mercury is boiled off or removed chemically. This leaves behind relatively small gold. A gold bar has a density of 19.3 grams per cubic centimeters, and mercury, as a liquid, has a density of 13.5 grams per cubic centimeters. This means that the gold bar will sink in the mercury. As the gold is in bullion or ingot form, its surface area is small, so the amalgamation process will take a while to occur. Chopping up the gold bar will help speed up the amalgamation process. As gold has similar atom size compared to mercury, the two elements can easily form a lattice when they are put together. They both have electrons available for forming metallic bonds with each other, and the amalgam you would get depends on how much mercury you are using to dissolve the gold bar. What you get as the product looks like this. Mercury eating gold leaf | Gold Dissolving in Mercury. #GoldMercury #GoldInMercury #EatingGold
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Coconut Cutting Skills The best coconut technique Amazing thai street food.



Young coconut, Ever wondered how the thirst quenching drinking coconuts of Thailand are processed? The tool (buffalo horn knife) is used to separate the flesh from the shell. By preparing coconut this way, we can eat the flesh easier even without using a spoon. I think this is Best coconut cutting skills in thailand street food. Coconuts are both delicious and nutritious, and you definitely should include them in your diet if you want to stay healthy and enjoy your meals in the process. Thai Coconut Cutting Skills The best coconut technique Amazing thai street food. I hope you like our videos. Please apply for membership And share our videos To cheer. Thank you very much
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Gold recovery from Aqua Regia Use zinc powder.



Gold recovery from Aqua Regia Use zinc powder.
#GoldRecovery
#GoldRecoveryFromAquaRegia
#GoldRecoveryZincPowder
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how to melt gold fragments together in one lump By using induction heater and graphite crucible



Hello, friends melt gold at home.
Today I will introduce you how to melting gold fragments together in one lump. By using induction heater and graphite crucible. Equipment used includes Graphite crucible, Scrap gold , Induction Heater, Nitric acid + water 1to 1. You can find these devices from ebay amazon and website. Is a method of melting gold Easy and fast.
The Graphite Crucibles are designed to melt metals such as gold, silver, copper, and aluminum. In some cases, we use these crucibles for melting platinum group metals. These graphite crucibles are ideal for our LC series induction melting systems for a variety of melting applications.
I hope my video clips will be useful for everyone.
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Thank you for watching.
#HowToMeltGold
#MeltGold
#GoldMeltingInductionHeater
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Gold Recycling precious metal Gold Recovery 24k


Gold Recycling precious metal | Gold Recovery 24k Recycling of Precious Metal Gold from Waste Electrical and Electronic Equipments. in mobile phone PCBs, coated plates, connectors etc. This is because of its high conductivity, ability to carry low ampere current, high sensitivity and resistance to corrosion. Due to the increasing demand of electronic devices conventional reserves of gold are depleting. At the same time life of electronic goods is decreasing because of rapid changes in device features and abilities. This produces a large amount of obsolete electronic gadgets which gradually results into a large amount of electronic waste. Even during production of electronic products, steps involved generate waste water containing gold which can be recycled. In order to meet the increasing demands and conserve resources, it is necessary to recycle the e-waste generated. Gold recovery is also necessary because of its high market value and vast application in different fields such as jewelry, coinage, medical appliances etc. Recovery of gold from e-waste has gained attention because of its concentration in e-waste which is around 100 times more than that is found in gold ores. #PreciousMetal #GoldRecycling #GoldRecovery
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How to way to cut gold from computers parts and electronics e-waste RAM circuits board fingers.




How Are Gold Fingers Used? Gold fingers are used as connecting contacts between two adjoining PCBs. Aside from its conductivity, the purpose of the gold is to protect the connecting edges from wear over many uses. Due to the strength of hard gold at its specified thickness, gold fingers make it possible for a PCB to be connected, disconnected and reconnected up to 1,000 different times in a corresponding slot. Gold fingers are the gold-plated columns that you see along the connecting edges of printed circuit boards (PCBs). The purpose of gold fingers is to connect a secondary PCB to the motherboard of a computer. PCB gold fingers are also used in various other devices that communicate via digital signals, such as smartphones and smartwatches. Gold is used for the connecting points along a PCB because of the alloy’s superior conductivity. How to way to cut gold from computers parts and electronics e-waste RAM circuits board fingers. #GoldFromComputersParts #GoldElectronics #GoldFingers
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How to Melt Gold Scrap scrap gold business.






How to Melt Gold Scrap gold business. #GoldScrap #ScrapGoldBusiness #MeltGold
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Coconut Cutting Skills How to peel coconut young step of true professionals.




How to Coconut Cutting Skills How to peel coconut step of true professionals. Young coconut, also known as ma-prao orn, is harvested directly from the tree before it has time to age and drop like the more mature white and brown husked coconuts. Inside is a refreshing juice and a soft flesh. We have to use spoon to scoop the flesh from the shell when we want to eat the flesh which sometime hard to do. The second tool (buffalo horn knife) is used to separate the flesh from the shell. By preparing coconut this way, we can eat the flesh easier even without using a spoon. #CoconutCuttingSkills #CoconutCutting #HowToPeelCoconut
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How to recycle gold and silver from cpu computer scrap Old CPU Scrap Gold Value

How to recycle gold and silver from cpu computer scrap  Old CPU Scrap Gold Value youtube Subscribe to this ►►► https://goo.gl/9...