nickel sulfide solubility

Recommendations Recommended topics for further studies based on this research are as follows: 1. In the environment, nickel is found primarily combined with oxygen or sulfur as oxides or sulfides. Additional discus-sion of sulfide equilibria may be found in References 7 and 9. Nickel sulfide is used as a semiconductor material. γ-Nickel (II) sulfide is a black powder. Most often, the solvent is a liquid, which can be a pure substance or a mixture. Testing sulfide ion | Qualitative Analysis S2- ion More kinetic studies for cobalt and nickel reaction with sulfide to obtain the possible reaction rate expression. References 1. A a B b (s) → a A + + b B. Effects of Exposure: Nickel is a confirmed carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic and teratogenic data. Nickel sulfide (NiS) is the solid precipitate formed from this reaction. Nickel carbonate is soluble in dilute acids and ammonia, and insoluble in hot water. Is nickel II carbonate soluble in water? - SupportMyMoto (1) Each form of nickel exhibits different physical properties. About Nickel Disulfide NiS2 Powder: Nickel sulfide is an inorganic salt, insoluble in water, soluble in nitric acid, aqua regia.Nickel disulfide is an inorganic compound with the chemical formula Nis2 and has a pyrite structure.Nickel disulfide is a kind of electronic, energy and chemical material which has attracted more and more attention in recent years. Simple salts of sulfides (such as sodium, potassium, and ammonium sulfide) react . (PDF) Nickel sulfide formation at low temperature: Initial ... 3. At all conditions studied, hexagonal (α-NiS) was the initial precipitate from solution containing Ni2+ and dissolved sulfide. The Equilibrium Relations of Nickel Sulfide with Copper ... PDF Nickel Compounds and Metallic Nickel 12035-51-7 - Nickel sulfide, 99% (metals basis) - 45498 ... Solubility. Nickel may be found in slate, sandstone, clay minerals and basalt. (1,6) Soluble nickel salts include nickel chloride, nickel sulfate, and nickel nitrate. The soluble Ni (dark green in Fig. Brian A.Korgel. Attached is the heavy metal sulfide solubility curves. Nickel sulfide is an inorganic compound with the formula NiS. Solubility Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent. Nickel-tungsten sulfide catalysts for the hydrogenation of aromatic hydrocarbons have been prepared by the in situ decomposition of an oil-soluble tungsten hexacarbonyl precursor in a hydrocarbon feedstock using oil-soluble nickel salt nickel(II) 2-ethylhexanoate as a source of nickel. (6) Nickel carbonyl, a highly unstable form, is not found naturally and decomposes rapidly. Barium sulfide BaS 2.88 4.89 7.86 10.4 14.9 27.7 49.9 67.3 60.3 Beryllium carbonate BeCO3 0.218 Beryllium chloride BeCl2 42 42 Beryllium molybdate BeMoO4 3.02 Beryllium nitrate Be(NO3)2 97 102 108 113 125 178 Nickel sulfide minerals such as pentlandite can, in general, be separated from their gangue by flotation using a thiol group of collectors like xanthates and alkyl dithiophosphates in the presence of a variety of activators, depressants, and dispersants. The solubility of carbon in iron-nickel sulfide melts at 1673 K was studied in the entire range of compositions of the Fe-FeS-Ni3S2-Ni tetragon. CO. 3. It is well-known that insoluble nickel compounds possess much more potent carcinogenic activities as compared with soluble nickel compounds. (1) Selected Solubility Products and Formation Constants at 25 o C. Solubility Rules Although all compounds have a characteristic solubility in water at a given temperature, some families of compounds are more soluble than others and it is useful to know certain general rules of solubility. The solubility of a substance fundamentally depends on the physical and chemical properties of the solute and solvent as well as on temperature, pressure and the pH of the solution. The present invention belongs to the field of wet treating process of nickel sulfide material, and is especially wet process of preparing nickel sulfamate with concentrated nickel sulfide ore. It can react violently with iodine, hydrogen sulfide, or a mixture of barium oxide and air. Identification of soluble sulfur species formed during NiS and CoS dissolution. It can react violently with iodine, hydrogen sulfide, or a mixture of barium oxide and air. Nickel sul-fide occurs in three forms (α, β, and amorphous) as dark-green to black crystals or powder. Nickel sulfide is used as a catalyst in 169. More information about Nickel(II) sulfide (NiS). It was found that the catalytic activity in hydrocracking depends on the concentration of acid sites in the . Chemsrc provides Nickel(II) Sulfide(CAS#:16812-54-7) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. The in situ synthesized Ni-W-S catalyst has been characterized by X-ray photoelectron spectroscopy. Anodes in nickel plating must be soluble into the bath. In 2005-2006, nickel sulfate was the top allergen in patch tests (19.0%). Again, equations are simplified by showing metals in their uncomplexed state. 2. At last,NICKEL SULFIDE(16812-54-7) safety, risk, hazard and . The effects of nickel on hepatic glutathione and the enzymes glutathione reductase, glutathione-peroxidase, glutathione-S-transferase, and gamma-glutamyl-transpeptidase were investigated in female albino rats.Three groups of rats were sacrificed 16, 24, or 72 hr after a subcutaneous injection of nickel as nickel chloride at a level of 200 micromol/kg. (NH4)2CO3 ( AMMONIUM CARBONATE ) Solventless Synthesis of Nickel Sulfide Nanorods and Triangular Nanoprisms. 1.3 Use of the agents . One may also speak of solid solution, but rarely of solution in a gas. . Nickel Sulfide is a moderately water and acid soluble Nickel source for uses compatible with sulfates.Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. (1) If you want to quickly find the word you want to search, use Ctrl + F, then type the word you want to search. Other CAS numbers used are: 12035-71-1 (heazlewoodite), 12035-51-7 (mononickel disulfide), 16812-54-7 (mononickel monosulfide). 0.10 M KNO3 Compare the solubility of silver phosphate in each of the following . Learn vocabulary, terms, and more with flashcards, games, and other study tools. All nitrates, acetates and perchlorates are soluble. It has a maximum soluble rate of 47% at eutectic temperature, which then decreases to approximately 30% at room temperature. 2. The formation of nickel sulfides has been examined experimentally over the temperature range from 25 to 60 degrees C. At all conditions studied, hexagonal (alpha-NiS) was the initial precipitate . Answer: You look at the ions, Ag+ and S2-, and find them in the Solubility Rules. Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO 4 (H 2 O) 6.This highly soluble blue green coloured salt is a common source of the Ni 2+ ion for electroplating.. Insoluble nickel sulfide (Ni 2 S 3) is a carcinogen agent for the respiratory tract: When it is inhaled, particles of nickel sulfide accommodate themselves in the lungs of human beings, where they remain in contact with epithelial cells. Avoid adding any acid to a solution containing sulfide salts. Nickel Sulfide is a moderately water and acid soluble Nickel source for uses compatible with sulfates.Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. These alloys have superior resistance to high-temperature corrosion and oxidation, and optimal wear resistance. 0.1M sodium sulfide (Na2S) 50mL beaker magnetic stirrer with stirring bar Safety: Sulfide salts, their solutions and hydrogen sulfide gas, which smells like rotten eggs at low concentration and is produced by reaction of sulfides with acids, are all poisonous. Visit ChemicalBook To find more NICKEL SULFIDE(16812-54-7) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. 4. We can offer items in bulk or custom. The so-called "Mond Process" involves the conversion of nickel oxides to pure nickel metal. You can also browse global suppliers,vendor,prices,Price,manufacturers of NICKEL SULFIDE(16812-54-7). Solubility-Product Constants for Compounds at 25 C Created Date: 3/19/2021 9:50:18 AM . Concen- Sulfide ion forms compounds with cations. Aluminum hydroxide Al(OH) 3 1.8×10 -5 Aluminum phosphate AlPO 4 6.3×10 -19 Barium carbonate BaCO 3 5.1×10 -9 Barium chromate BaCrO 4 1.2×10 -10 Barium fluoride BaF 2 1.0×10 -6 Barium hydroxide Ba(OH) 2 5×10 -3 Barium sulfate BaSO 4 1.1×10 -10 Barium sulfite BaSO 3 8×10 -7 Barium thiosulfate BaS 2 O 3 . Nickel sulfides are insoluble in water, and some occur in more than one form. In the environment, nickel is found primarily combined with oxygen or sulfur as oxides or sulfides. Among the heavy metals, HgS has the lowest solubility, and ZnS and NiS have the highest solubility. Abstract. properties for nickel and nickel compounds, including solubility data, were presented in the previous IARC Monograph (IARC, 1990), and have been reported elsewhere (ATSDR, 2005). Silver chloride AgCl 1.8 × 10-10. . Nickel-tungsten sulfide catalysts for the hydrogenation of aromatic hydrocarbons have been prepared by the in situ decomposition of an oil-soluble tungsten hexacarbonyl precursor in a hydrocarbon feedstock using oil-soluble nickel salt nickel(II) 2-ethylhexanoate as a source of nickel. The initial step in this process is to prepare a sodium sulfide solution. Solubility Rules: Greater than 0.1 mole/Liter = Soluble Between 0.1 and 0.01 mole/Liter = Slightly Soluble Less than 0.01 mole/Liter = Insoluble 1. Solubility table From Wikipedia, the free encyclopedia See also: Solubility chart . Silver carbonate . The oxide is obtained from nickel ores by a series of treatments including concentration, roasting and smelting. The . Solubility in water, . Pure nickel may be used with chloride-containing baths, but when chlorides are not used as, for example, in sulfamate baths a special nickel anode metal must be used, usually anode nickel containing sulfur, to improve the anode solubility. Otherwise, the application of sulfide precipitation proves to be a relevant and promising technology with various merits over hydroxide precipitation, with higher selectivity for nickel removal, faster reaction rates, better dewatering properties of sludge, and lower solubility of precipitate . It has a trigonal crystal structure of the millerite type with the space group R 3 m (space group no.160 ) , a = 961.2 pm, c = 325.9 pm, and it goes at 396 ° C in β-nickel (II ) sulfide over. AgBrO. Solubility. Applications. Download SDS (PDF) Nickel (II) Sulfide - 5 gm $ 50.00. For other quantities or purities, please request a quotation. The process includes the following steps: pressure leaching the material with nitric acid; neutralizing and purifying with ammonium carbonate or ammonia water to eliminate Fe, Mn, Zn and other impurities . Nickel(II) sulfide CAS 16812-54-7 WIKI information includes physical and chemical properties, USES, security data, NMR spectroscopy, computational chemical data and more. See also How to Use Vega 100mg, Side Effects, Price, Warnings. Although it is assumed that the different entry and clearance rate are responsible for the difference, the mechanisms underlying the different carcinogenic activities are still not well understood yet. Unusual Fire and Explosion Hazards: When heated to decomposition, nickel sulfide may emit toxic fumes of oxides of sulfur. Solubility Product Constants near 25 °C. Freshly precipitated nickel sulfide possesses significant residual Ni-O coordination as revealed by X-ray absorption spectroscopy. There are two commercial classes of nickel ore, the sulfide ores (pentlandite and pyrrhotite) and the silicate-oxide. Chromium does not form insoluble sulfide precipitates and must be precipitated as the hydroxide at 7.0 - 8.0. CAS No: 12035-51-7. Given that many major nickel companies report annually on their sustainability performance, such as Eramet, Inco (now Vale Inco), WMC Resources (now BHP Billiton), Norilsk Nickel, there is data available to examine in detail the differences in the environmental costs of nickel sulfide versus laterite. Read "Nickel sulfide formation at low temperature: initial precipitates, solubility and transformation products, Environmental Chemistry" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. The bulk of the NLbS2was prepared from metallic nickel and sulful, as outlined as follows: The metallic nickel was first dissolved in hydrochloric acid. The nickel-tungsten sulfide catalysts for the hydroconversion of hydrocarbons were prepared from oil-soluble nickel and tungsten precursor compounds in situ with the use of silica, alumina, titania, zeolite Y, and amorphous aluminosilicate as additives in a vacuum gas oil medium. nickel. Solubility product constant ( Ksp) (or the solubility product) is the product of the molar concentrations of the constituent ions, each raised to the power of its stoichiometric coefficient in the equilibrium equation. Nickel sulfide ores associated with komatiites in Archean greenstone belts are the most important examples of mag- matic mineralization in volcanic rocks. is Nickel II hydroxide soluble in water? 8.1 × 10-12. A student measures the S2- concentration in a saturated aqueous solution of nickel(II) sulfide to be 5.64×10-11 M. Based on her data, the solubility product constant for nickel(II) sulfide is ____ The formation of nickel sulfides has been examined experimentally over the temperature range from 25 to 60°C. Learn vocabulary, terms, and more with flashcards, games, and other study tools. . The concentration of the nickel salt, e.g., nickel sulfate, in the aqueous treating solution can vary and can range from about 0.05 to about 2, preferably about 0.1 to about 1, molar. At all conditions studied, hexagonal (α-NiS) was the initial precipitate from solution containing Ni2+ and dissolved sulfide. 2. 3. (6) Nickel carbonyl, a highly unstable form, is not found naturally and decomposes rapidly. Freshly precipitated nickel sulfide possesses significant residual Ni-O coordination as revealed by X-ray absorption spectroscopy. 0.10 M (NH4)2S Similar solubility as in pure water 0.10 M NH CH3C00 Less soluble than in pure water. Insoluble. The boundaries of the stratification area were determined in this system upon its being saturated with carbon. The name nickel sulfide is used to describe different compounds with varying composition. 1b) in the range of 0.17 and 3.4 mmol/L despite the availability of sulfide for precipitation. 5.5 × 10-5. Nickel acetate is soluble in acetic acid and water, and insoluble in alcohol. Ionic Compound Formula K sp. For instance, if a compound A a B b is in equilibrium with its solution. Water-soluble nickel compounds include nickel chloride (642 gI at 20 0 C) and nickel sulfate (293 g/l at 20 0 C), while nickel mon~sul- fide (3.6 mgl at 180 C) and nickel carbonate (93 mg/l at 25 0 C) are classed as insolu- Nickel (II) sulfide* NiS 3.0 × 10-20. 6H2O (CAS: 10101-97-0) which is blue to emerald green, and as a heptahydrate (NiSO4. 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