Customer case aboutsubzero nitric acid substitute

subzero nitric acid substitute

Subzero Shor International

Subzero. A dry, powdered, non-hazardous replacement for nitric acid when making aqua regia with muriatic acid. Nitric acid is highly corrosive and highly toxic nitric oxide fumes when used in the aqua regia process of refining precious metal. Additionally, it

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subzero...,power nitric acid substitute Gold Refining

10-05-2013  So yea the subzero works for nitric acid but dont go by there direction. The directions sent said use 1 whole LB. to half gal. of muratic dont do that its more like 2 tablespoons to 1 quart of hcl hope this helps. Top. mic. Re: subzero...,power nitric acid substitute. Quote. Post. by mic »

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SubZero,Powdered nitric acid substitute ??? Gold

21-02-2009  soda ash + nitric acid or sodium hydroxide + nitric acid or just buy it as a fertilizer 16-0-0. Steve

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Nitric acid substitute

I'm looking for a chemical substitute for our nitric acid mixture bath used for chemical deburring of non-ferrous alloy electronic pin connector parts. Burr created during machining/slotting operations have to be removed chemically. Nitric acid mixture (30 40% nitric and balance is water) is used to etch down the parts by .001" in 15 to 40 seconds.

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Gold Platinum Refining by the Acid Method Precious

Subzero. A dry, powdered, non-hazardous replacement for nitric acid when making aqua regia with muriatic acid. Nitric acid is highly corrosive and highly toxic nitric oxide fumes when used in the aqua regia process of refining precious metal. Additionally, it is expensive and difficult to obtain.

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Alternative to Nitric acid /research Sciencemadness

Take 22g of 65% Ca (OCl)2 and ad it to an 50ml beaker. Ad the sulfuric acid to the beaker and go away,lets react for 20 minute. Lets it sit for 12 hour,than take a glass pipet and take slowly the HOCl sol. layer,store it in amber vials. I will ad the equation for the reaction later.

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a substitute for fuming nitric acid? Yahoo Answers

26-10-2011  Fuming nitric acid is also referred to as 16 molar nitric acid. It is the most concentrated form of nitric acid at Standard Temperature and Pressure In the 17th century, the German-Dutch chemist Johann Glauber prepared sulfuric acid by burning sulfur together with saltpeter (potassium nitrate, KNO3), in the presence of steam.

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Alternative to Nitric acid /research Sciencemadness

Take 22g of 65% Ca (OCl)2 and ad it to an 50ml beaker. Ad the sulfuric acid to the beaker and go away,lets react for 20 minute. Lets it sit for 12 hour,than take a glass pipet and take slowly the HOCl sol. layer,store it in amber vials. I will ad the equation for the reaction later.

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Passivation alternatives to Nitric Acid?

So, when you ask what are the possible substitutes for nitric acid passivation, some will feel that a substitute is to just skip the step entirely, and just use really good cleaning. But that leaves the two remaining issues of complying with specs that may require passivation, and the liability about what happens if the parts rust and they weren't passivated.

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16.2: Other Aromatic Substitutions Chemistry LibreTexts

3. Sulfuric acid is needed in order for a good electrophile to form. Sulfuric acid protonates nitric acid to form the nitronium ion (water molecule is lost). The nitronium ion is a very good electrophile and is open to attack by benzene. Without sulfuric acid the reaction would not occur. 4. 5.

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a substitute for fuming nitric acid? Yahoo Answers

26-10-2011  For example, potassium nitrate reacts with sulfuric acid (H2SO4) to form nitric acid (HNO3) and potassium bisulfate (KHSO4). The following equation shows this reaction: KNO3 + H2SO4 -> HNO3 + KHSO4. Here, the potassium atom is exchanged for one of the hydrogen atoms. The potassium bisulfate drops out of the nitric acid solution as a solid.

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Removing Beerstone: A look at alternative cleaning methods

milkstone removing acid cleaners incorporate nitric acid. An added benefit of using an acid with nitric acid is that nitric acid has a passivating effect on stainless steel. The acid first step does not remove the beerstone. Rather, beerstone is merely loosened for the next step. If the acid is drained and followed with a rinse, a pH of about

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RDX Wikipedia

RDX is an organic compound with the formula (O 2 N 2 CH 2) 3.It is a white solid without smell or taste, widely used as an explosive. Chemically, it is classified as a nitramide alongside HMX, which is a more energetic explosive than TNT.It was used widely in World War II and remains common in military applications.. RDX is often used in mixtures with other explosives and plasticizers or

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4 Amazing Citric Acid Substitutes Organic Facts

31-01-2020  Citric Acid Substitutes Lemon Juice. This common household fruit juice is a great substitute for citric acid, offering a similarly sour flavor Tartaric Acid. Often used as a souring agent in wines, this grape -sourced acid is also sold as a powder. The acidic White Distilled Vinegar. Vinegar

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Making Nitric Acid for Gold Refining YouTube

13-07-2019  In this video I show the apparatus and techniques I use to make my own DIY concentrated nitric acid for use in gold refining and making aqua regia. Visit htt...

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Suggestions for Cleaning Glassware Sigma-Aldrich

in a jar of chromic acid cleaning solution. After soaking for several hours, or overnight, drain the pipets and run tap water over and through them until all traces of dirt are removed. Soak the pipets in distilled water for at least one hour. Remove from the distilled water, rinse, dry the outside with a cloth, shake the water out and dry.

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14.2. Examples of electrophilic aromatic substitution

The cation may bond to a nucleophile to give a substitution or addition product (coordination). 2. The cation may transfer a proton to a base, giving a double bond product (electrophile elimination). 3. The cation may rearrangeto a more stable carbocation, and then react by mode #1 or #2.

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a substitute for fuming nitric acid? Yahoo Answers

26-10-2011  For example, potassium nitrate reacts with sulfuric acid (H2SO4) to form nitric acid (HNO3) and potassium bisulfate (KHSO4). The following equation shows this reaction: KNO3 + H2SO4 -> HNO3 + KHSO4. Here, the potassium atom is exchanged for one of the hydrogen atoms. The potassium bisulfate drops out of the nitric acid solution as a solid.

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Passivation alternatives to Nitric Acid?

So, when you ask what are the possible substitutes for nitric acid passivation, some will feel that a substitute is to just skip the step entirely, and just use really good cleaning. But that leaves the two remaining issues of complying with specs that may require passivation, and the liability about what happens if the parts rust and they weren't passivated.

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JSP® Nitric acid substitute 16 ozs Walmart

Sodium Nitrate (NaNO3) is a commonly used dry substitute for nitric acid when making aqua regia. This compound is significantly better than nitric acid because a) Less expensive than nitric acid. B) 90-95% less fumes . c) Much less hazardous .JSP® Nitric acid substitute 16 ozs.

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Silver refining Alternative to nitric acid? : Silverbugs

Nitric unfortunately counts as pretty much unique for your purpose. If you currently use an AR-type reaction, you can use NaNO3 or KNO3 in HCl to efficiently generate AR on the fly (in fact, I prefer that to actually using nitric acid directly for that purpose), but that doesn't quite replace the convenience of straight nitric itself.

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What Household Products Contain Nitric Acid?

29-03-2020  Nitric acid brings a medium level of health concern because health experts suspect that it causes cardiovascular or blood toxicity, according to GoodGuide. It also potentially causes respiratory toxicity and skin or sense organ toxicity. Ingestion of a product containing nitric acid can lead to adverse affects at low doses.

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Suggestions for Cleaning Glassware Sigma-Aldrich

in a jar of chromic acid cleaning solution. After soaking for several hours, or overnight, drain the pipets and run tap water over and through them until all traces of dirt are removed. Soak the pipets in distilled water for at least one hour. Remove from the distilled water, rinse, dry the outside with a cloth, shake the water out and dry.

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Difference Between Fuming Nitric Acid and Concentrated

03-08-2018  Fuming nitric acid is a commercial grade of nitric acid that has a very high concentration and a high density. over, it forms a colorless, yellowish or brownish fume. The lowest concentration of this acid is 90%. Concentrated nitric acid is simply a solution containing more nitric acid in less water. The lowest concentration of this acid is 68%.

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Deoxidizing Aluminum as a Pretreatment Products

Immersion time is 1-5 minutes, and triple rinsing is the most effective way of removing the solution. Nitric-acid-based deoxidizers are typically considered more environmentally friendly, too, since there is no chromium involved. Tanks can be made of 316 stainless steel or polypropylene, or have some sort of polyvinylidene fluoride (PVFD) liner.

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Can I Use Deionised Water Instead of Distilled Water?

The two most popular grades of purified water are deionised water and distilled water.Because of their high purity levels, many assume that these products are interchangeable. But this is not always the case because the different purification methods they undergo directly affect how and where these forms of purified water can be used.. The Difference Between Deionised Water and Distilled Water

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Chromic Acid Anodizing Alternatives SERDP and ESTCP

Chromic acid anodizing is used for corrosion prevention, increased hardness, and improved paint adhesion. In addition, many non-chromate anodized layers are sealed with a chromate conversion coating. Typical Applications: Specifications: Military and commercial aircraft Al components;

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