The properties and synthesis method of nickel hydroxide

1. Nickel salt method:

A nickel salt solution such as a nickel sulfate solution and a sodium hydroxide solution are reacted to obtain a finished nickel hydroxide product through crystallization and separation. The reaction equation is:

NiSO4+ 2NaOH = Ni(OH)2+ Na2SO4

2. Dissolve 25g KOH in 250mL water without CO2, and dissolve 60g Ni(NO3)2·6H2O in 250mL water. The KOH solution was added dropwise to the warm (about 35°C) Ni(NO3)2 solution under vigorous stirring. The resulting precipitate was washed several times with warm CO2-free water, with 5L of water each time, until the eluate was no longer alkaline. Then, use 5L of very dilute ammonia water without CO2 to wash once. Finally, wash with the same amount of warm water without CO2 as the first time; until the precipitation and eluate do not contain K+ and NO3-. The precipitate is filtered out and dried in a vacuum desiccator filled with concentrated sulfuric acid. The obtained product still contains adsorbed water, which can be heated to 200°C to remove it. The operations of precipitation, decanting and filtration in this experiment must be carried out in an atmosphere free of CO2. [Ni(NH3)6](NO3)2 can also be used as raw materials, but NiCl2·6H2O and NiSO4·7H2O are not suitable, because the Cl- and SO42- in the precipitate are difficult to wash away.

Overview of Nickel Hydroxide Ni(OH)2 Powder

Nickel hydroxide [Ni(OH)2] is a chemical substance, light green crystalline powder, soluble in acid, insoluble in water and alkali, soluble in ammonia and ammonium salt aqueous solution to form a complex, decomposed by heat.

Nickel hydroxide is a reducing hydroxide, which can react with some strong oxidants to produce NiO(OH). It has strong alkalinity and is a medium-strong base. It can ionize in a large amount in a saturated aqueous solution (5% by mass)) OH- and a small amount of [Ni(OH)6]4-anions. It can also be dissolved in strong alkalis such as NaOH and KOH to form Na4 [Ni(OH)6] or K4[Ni(OH)6], and Na4NiO3 are evaporated to get easily hydrolyzed salt.

Nickel hydroxide is the positive active material of nickel-hydrogen battery, and its performance determines the cycle life of the battery. Spherical nickel hydroxide is pure β-Ni(OH)2, with controllable spherical particles, controllable composition and excellent performance. There are some unique things.

Application of Nickel Hydroxide Ni(OH)2 Powder

Nickel hydroxide can be oxidized by bromine water, chlorine water, sodium hypochlorite, etc. at a certain temperature to produce black nickel oxyhydroxide NiO(OH). It is not flammable and has strong irritation. It is decomposed into NiO and H2O at 230°C. Soluble in ammonia, ethylenediamine and acid. The main purpose is to manufacture nickel salt raw materials, alkaline storage batteries, electroplating and catalysts. Used in the manufacture of alkaline storage batteries, nickel plating, etc.; used in the manufacture of nickel salts, alkaline storage batteries, nickel plating, etc.

Nickel hydroxide Ni(OH)2 powder price

The price of Ni(OH)2 powder of nickel hydroxide varies randomly with the production cost, transportation cost, international situation, exchange rate, and the supply and demand of nickel hydroxide in the Ni(OH)2 powder market. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for nickel hydroxide Ni(OH)2 powder material, please feel free to contact me to get the latest price of nickel hydroxide Ni(OH)2 powder.

Supplier of Nickel Hydroxide Ni(OH)2 Powder

As a global supplier of nickel hydroxide Ni(OH)2 powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

IUPAC name:nickel hydroxide

Structural formula:Ni(OH)2

Metering type:H2Ni1O2

Relative molecular weight:92.7138

Decomposition temperature:230 °C

Density:4150 kg/m3(°C)

Form(normal temperature):crystal or no color (normal temperature): blue-green

Solubility(water):0.013 g/100g water

Solubility

(Other solvents):+ NH3.H2O

CAS number:12054-48-7

PubChem CID:25500