Nickel Hydroxide Precipitation

NiCl₂ + 2NaOH → Ni(OH)₂↓ + 2NaCl

Genel Bakış

Nickel chloride reacts with sodium hydroxide to form a green precipitate of nickel(II) hydroxide (Ksp = 5.5 × 10⁻¹⁶). The apple-green precipitate does not dissolve in excess NaOH (not amphoteric) but dissolves in ammonia to form the deep blue hexaammine nickel(II) complex.

Katılımcılar

Rol	Madde	Katsayı	Hal
Reaktan	Sodium Hydroxide NaOH	2	(aq)
Ürün	Sodium Chloride NaCl	2	(aq)

Günlük Örnek

Nickel hydroxide is the active material in rechargeable nickel-metal hydride (NiMH) batteries used in hybrid cars and consumer electronics.

Endüstriyel Önemi

Nickel hydroxide is a critical battery material for NiCd and NiMH batteries, and is also used in nickel plating and as a catalyst precursor.

Özellikler

Tür: Precipitation
Geri Dönüşümlü: Hayır
Enerji: Ekzotermik
ΔH: -55,0 kJ/mol

İlgili Reaksiyonlar

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Lead Chloride Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Nickel Hydroxide Precipitation?

The balanced equation is: NiCl₂ + 2NaOH → Ni(OH)₂↓ + 2NaCl.

What type of reaction is Nickel Hydroxide Precipitation?

Nickel Hydroxide Precipitation is a precipitation reaction.

Is Nickel Hydroxide Precipitation exothermic or endothermic?

Nickel Hydroxide Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -55.0 kJ/mol.