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Aqua regia - Wikipedia

Aqua regia dissolves gold, though neither constituent acid will do so alone, because, in combination, each acid performs a different task.Nitric acid is a powerful oxidizer, which will actually dissolve a virtually undetectable amount of gold, forming gold ions (Au 3+).The hydrochloric acid provides a ready supply of chloride ions (Cl −), which react with the gold ions to produce .

Incident Review: Nitric Acid -Ethanol Reaction

A graduate student was teaching a technician a procedure involving 70% nitric acid. He poured the nitric acid into a 250mL waste container that contained 70% ethanol. He capped the waste in the fume hood and walked away. As the researchers were walking away the graduate student turned back and noticed the reaction in the container.

Industrial Solutions Nitric acid

nitric acid plant 1 Reactor 2 Process gas cooler 3 Tail gas heater 3 4 Economizer 5 Cooler condenser & feedwater preheater 6 Absorption 7 Bleacher 8 Tail gas heater 1 & 2 9 Tail gas reactor 10 Ammonia evaporation & superheating 11 Turbine steam condenser Nitric acid plant for SKW in Wittenberg, Germany Capacity: 350 t/day HNO 3 ()

What is the reaction of nitric acid reacting with calcium .

As nitric acid is strong oxidizing agent it doesn't give the product as other acid gives. When the reaction of Ca and H2SO4 or HCl takes place it generally gives salt of metal and hydrogen gas. But when nitric acid is react with metal it produces .

Nitric acid - Wikipedia, the free encyclopedia

The Manufacture of Nitric Acid | Johnson Matthey Technology Review

Reaction Product of Nitric acid and Sulphuric acid

Oct 16, 2014 · 2006. A. There is no chemical reaction. H + NO3 and H2 + SO4 will give an equilibrium of the ions and the acid. Now, it is possible that if you add concentrated sulfuric acid to the nitric it can become hot enough to break the HNO3 into water and NO2 (gas).

Understanding Nitric Acid Passivation

2002. A. Melissa: First of all, it is not true that nitric acid is a better passivator than others. There is MUCH data showing that our citric acid based formulations are superior in passivation to nitric acid. This is proven by the thousands of customers that are using it, .

If rust is found on metal, does acid . - UCSB Science Line

Therefore, when acid reacts with metal, it tends to dissolve both the rust and the metal, in order to form the iron chloride. However, if you were to carefully use dilute acid, you could dissolve away the rust before dissolving the metal. Nitric acid (HNO 3) will also dissolve the rust and the metal, but in a much more violent, caustic reaction.

Copper and Nitric Acid Reaction | Cu + HNO3 Balanced Equation

Concentrated nitric acid reacts with copper and produce copper nitrate ( Cu(NO 3) 2), nitrogen dioxide (NO 2) gas and water as products.In this reaction, copper is oxidized to its +2 oxidation state while nitric acid is reduced to nitrogen dioxide.. After the reaction, color of the solution which contains Cu(NO 3) 2 is blue.. Balanced equation

Nitric acid Manufacturing Process | Uses | Ostwald Process

Nitric acid reactions. Nitric acid is both a strong acid and a strong oxidizing agent, nitric acid can dissolve most metals. Questions of Nitric acid manufacturing Ask your question What are the raw materials required for the manufacture of nitric acid by ostwald process. Ammonia, oxygen, water are the raw materials of nitric acid manufacturing.

nitric acid | Properties, Uses, & Facts | Britannica

Nitric acid, HNO 3, was known to the alchemists of the 8th century as "aqua fortis" (strong water). It is formed by the reaction of both dinitrogen pentoxide (N 2 O 5) and nitrogen dioxide (NO 2) with water. Small amounts of nitric acid are.

Demonstrations - Copper + Nitric Acid

Copper + Nitric Acid . Copper is a reddish-brown metal, widely used in plumbing and electrical wiring; it is perhaps most familiar to people in the United States in the form of the penny. (Although since 1983, pennies are actually made of zinc surrounded by a paper-thin copper foil to give them the traditional appearance of pennies.)

Reaction of Ammonia with Nitric Acid | cwright1156

Nitric Acid: Acidic Soluble in Water Combustible How Reactants Are Obtained: The reaction is chemically simple, but very difficult to preform. The reaction is very explosive and technological challenging. When anhydrous ammonia and nitric acid combine, the excess water is evaporated which forms the product of a solid called Ammonium Nitrate.

The Manufacture of Nitric Acid | Johnson Matthey .

Nitric acid production by the oxidation of ammonia on platinum gauzes constitutes one of the world's major chemical industries. In this article the author outlines some of the principal features of this process, and describes in some detail the chemical reaction taking place at the platinum surface. He also discusses the changes that occur in the gauze leading to metal loss during operation.

Neutralization reaction between ammonia and nitric acid

Your answer is very close to the answer given, except for the following two tidbits (the first being more significant). An acid-base reaction is not the exchange of a hydrogen atom ce{H} .It is the exchange of a hydrogen ion (or proton) ce{H+} .Thus your answer should be: ce{NH3(aq) +HNO3(aq) -> NH4+(aq) + NO3-(aq)} The given answer combines the two ions produced into a single compound.

AP42 8.8 Nitric Acid Production

8.8 Nitric Acid 8.8.1 General 1-2 In 1991, there were approximately 65 nitric acid (HNO 3) manufacturing plants in the U. S. with a total capacity of 11 million tons of HNO 3 per year. The plants range in size from 6,000 to 700,000 tons per year. About 70 percent of the nitric acid produced is consumed as an intermediate in the manufacture of

How to Refine Gold With Nitric Acid | Sciencing

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.

Neutralization reaction between ammonia and nitric acid

Your answer is very close to the answer given, except for the following two tidbits (the first being more significant). An acid-base reaction is not the exchange of a hydrogen atom ce{H} .It is the exchange of a hydrogen ion (or proton) ce{H+} .Thus your answer should be: ce{NH3(aq) +HNO3(aq) -> NH4+(aq) + NO3-(aq)} The given answer combines the two ions produced into a single compound.

Nitric oxide Side Effects: Common, Severe, Long Term .

Applies to nitric oxide: inhalation gas. Side effects requiring immediate medical attention. Along with its needed effects, nitric oxide may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

70 TPD Nitric Acid Concentration Plant for Sale at Phoenix .

Phoenix Equipment is a global buyer and seller of used fertilizer and nitric acid plants. Phoenix Equipment has a 70 STPD nitric acid concentration plant for sale used for HNO3 production. Call Phoenix Equipment today to receive a quote for this nitric acid concentration plant or any of our fertilizer plants. We buy and sell used chemical process plants.

Nitric acid - Essential Chemical Industry

Nitric acid is manufactured from ammonia and is a key chemical in the manufacture of fertilizers. Uses of nitric acid. By far the principal use of nitric acid (80%) is in the manufacture of fertilizers. Of this 96% is used to make ammonium nitrate and calcium ammonium nitrate. A relatively small amount of ammonium nitrate is used to make .

Ostwald process - Wikipedia

Description Stage 1. Ammonia is converted to nitric acid in 2 stages. It is oxidized by heating with oxygen in the presence of a catalyst such as platinum with 10% rhodium, platinum metal on fused silica wool, copper or nickel, to form nitric oxide (nitrogen(II) oxide) and water (as steam). This reaction is strongly exothermic, making it a useful heat source once initiated:

Sulfur and Nitric Acid Reaction | S + HNO3

Sulfur and hot concentrated nitric acid reaction. When sulfur reacts with hot concentrated, given products are little bit different from previous reaction.. In this reaction, sulfur is oxidized to sulfuric acid (H 2 SO 4) while nitric acid is reduced to nitrogen dioxide. S + HNO 3 → H 2 SO 4 + NO 2 + H 2 O. Therefore oxidation number of sulfur is changed from 0 to +6.

Reaction of Ammonia with Nitric Acid | cwright1156

Nitric Acid: Acidic Soluble in Water Combustible How Reactants Are Obtained: The reaction is chemically simple, but very difficult to preform. The reaction is very explosive and technological challenging. When anhydrous ammonia and nitric acid combine, the excess water is evaporated which forms the product of a solid called Ammonium Nitrate.

How does ethanol reacts with nitric acid? - Quora

Empirical formula of Ethanol is C2H60 Empirical formula of Nitric acid is HNO3 C2H60 + HNO3 -----> C2H5NO3 + H2O Mixtures of ethanol with above 1 0% by weight of concentrated nitric acid are unstable, and that mixtures above 5% wt concentration .

Aqua regia - Wikipedia

Aqua regia dissolves gold, though neither constituent acid will do so alone, because, in combination, each acid performs a different task.Nitric acid is a powerful oxidizer, which will actually dissolve a virtually undetectable amount of gold, forming gold ions (Au 3+).The hydrochloric acid .

Type of Reactions With Copper & Nitric Acid | Sciencing

Copper and nitric acid can react in two oxidation-reduction reactions, depending on the concentration of the nitric acid. Nitric acid acts as the oxidizing agent, causing copper to become oxidized and lose electrons. The reactions release heat and toxic fumes.

How to Refine Gold With Nitric Acid | Sciencing

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.

Is copper and nitric acid a redox reaction? | AnswersDrive

Nitric acid reacts with copper according to the reaction: 4 HNO 3 (l) + Cu(s) ==> Cu(NO 3) 2 (s and aq) + 2 NO 2 (g) + 2 H 2 O(l) The copper nitrate salt that forms is .

Nitric acid - Wikipedia

Nitric acid and phosphorus reaction. Phosphorus reacts with nitric acid to give phosphoric acid (H 3 PO 4), NO 2 and H 2 O. This is a redox reaction. Oxidation number of phosphorous atom is increased from 0 to +5. Nitric acid and silver metal reaction. Silver reacts with nitric acid to give silver nitrate (AgNO 3), NO 2 and H 2 O. Silver is .