What does hydrochloric acid do to nickel?
Nickel react with
Nickel reacts with most acids to produce hydrogen gas and the green Ni2+ ion.
Nickel sulphate undergoes a double displacement reaction with hydrochloric acid forming nickel chloride and sulfuric acid.
When hydrochloric acid is added to solid nickel(II) carbonate, for example, a double displacement reaction takes place. NiCO3(s) + 2 HCl(aq) → NiCl2(aq) + H2CO3(aq) The carbonic acid, H2CO3, formed in the reaction decomposes into water and carbon dioxide gas.
Hydrochloric acid is a strong and highly corrosive acid that can dissolve many metals, including steel. When steel is exposed to hydrochloric acid, the acid reacts with the iron in the steel to form iron chloride and hydrogen gas.
Nickel alloys, especially the nickel(Ni)-chromium(Cr)-molybdenum(Mo) family, offer excellent resistance to hydrochloric acid. The objective of this paper is to study the corrosion performance of various Ni based alloys in high concentrations of HCl acids below the boiling point.
Well, dissolving nickel in hydrochloric acid means that there should in fact be excess chloride, meaning that yellow (or yellowish green) would be the correct answer.
Hydrogen gas combines with nickel quite readily with dissociation of the H−H bonds and formation of Ni−H bonds (nickel hydride bonds). The overall hydrogenation process is viewed as a series of reversible and sequential steps, as summarized in Figure 11-2.
From the balanced equation, we can see that 1 mole of nickel (Ni) reacts with 1 mole of sulfuric acid (H2SO4) to produce 1 mole of nickel sulfate (NiSO4).
Nickel (Ni) is a hard, silvery-white metal that may cause irritation to the skin. Exposure can harm the lungs, stomach, and kidneys. Exposure to nickel may lead to cancer.
Does nickel react with air?
Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion.
Under normal conditions nickel does not react with water. Elementary nickel is water insoluble at T=20oC pressure = 1 bar. However, nickel compounds may be water soluble.
Sulfuric acid (93%) under control conditions destroyed all soft tissue within 52 hours and all bones within 28 days. Sulfuric acid at 40˚C destroyed all soft tissue in 2.75 hours and all bones within nine days; at 100˚C all soft tissues were destroyed within 0.75 hour and all bones within nine hours.
Hydrogen Chloride reacts with OXIDIZING AGENTS (such as PERCHLORATES, PEROXIDES, PERMANGANATES, CHLORATES, NITRATES, CHLORINE, BROMINE and FLUORINE) to form toxic Chlorine gas and reacts violently with STRONG BASES (such as SODIUM HYDROXIDE and POTASSIUM HYDROXIDE).
Hydrochloric acid is so strong that it can eat through metal, something you can witness first hand in the school chemistry lab. Most science students will, at some point, take a strip of magnesium and dunk it into a flask of hydrochloric acid.
Nickel can combine with other elements such as chlorine, sulfur, and oxygen to form nickel compounds. Many nickel compounds dissolve fairly easy in water and have a green color.
Copper and mercury metal do not react with dilute hydrochloric acid as they come after hydrogen in the activity series, i.e., they can't replace hydrogen from hydrochloric acid. Was this answer helpful?
Nickel doesn't rust as it doesn't contain iron. Pure nickel is very corrosion resistant, especially to a variety of reducing chemicals. Alloying it with chromium gives resistance to oxidation.
Aqueous solutions of hydrochloric acid attack and corrode nearly all metals, except mercury, silver, gold, platinum, tantalum, and certain alloys. It may be coloured yellow by traces of iron, chlorine, and organic matter.
It dissolves carbonates, phosphates, borates, sulfates (except barite), and metal oxides. However, the low boiling temperature of hydrochloric acid limits its digestion efficiency.
How corrosive is nickel?
Nickel-based alloys have very low general corrosion rates in the disposal environment due to the spontaneous development of a passive surface film. However, they are susceptible to localised corrosion such as pitting and crevice corrosion.
The Mond process is used to manufacture pure nickel, where in impure nickel reacts with carbon monoxide (CO) to produce Ni(CO)4, which is subsequently decomposed at 200 °C to yield 99.99% Ni.
In fact, iron impurities cause the yellow color in muriatic acid, which is a less pure, but generally saturated solution of HCl in water.
HCl is a highly corrosive, strong acid, and can be a clear/colorless or light yellow liquid. It is used in the chemical industry mainly as a chemical reagent in the large-scale production of vinyl chloride for polyvinyl chloride plastic and methylene diphenyl diisocyanate/TDI for polyurethane.
According to the solubility-pH relationship, as shown by Fig. 1, the best-compromised pH for hydroxide precipitation process is pH 10-10.5 for nickel, pH 9.0-9.5 for zinc and pH 8.5-9.5 for copper. It shows that these heavy metals cannot be completely removed at single pH range.
