Copper hydroxide (Cu(OH)2) otherwise represented as copper(II) hydroxide or cupric hydroxide is an inorganic compound the is a crystalline solid. The is normally a bluish-green solid or a pale greenish-blue solid. The is a strong base, yet its action is challenging to detect due to its low solubility in water.

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Alchemists were the persons who first produced Cu(OH)2 native copper sulfate(blue vitriol) and also NaOH or KOH(Iye) solutions. Although copper hydroxide was known to humanity since around 5000 BC once copper smelting began.

The compound was commercially created when it began to be provided in pigments for ceramics and also painting. The commercial manufacturing was during the 1600s and also 1700s and also in colours like bremen eco-friendly and blue verditer.

Structure and Chemical Formula

The chemistry formula the Copper Hydroxide is Cu(OH)2. The molecule is one ionic compound that is composed of the ion OH– and also Cu2+.

The structure of copper hydroxide crystals was uncovered from the technique of X-ray crystallography. It was found that the central atom Cu is square pyramidal and also the planar and axial lengths the Cu-O bonds are 1.96 Å and 2.36 Å respectively. Planar hydroxide ion either double or triply bridging other adjacent copper atoms.

Properties the Copper Hydroxide

Now, let’s move on come the conversation of nature of this compound which means physical properties and chemical properties.

Physical Properties

Molar Mass97.561 g/mol
AppearanceBluish eco-friendly or pale greenish blue crystals
Density3.368 g/cm3
Melting Point80C, decomposes to CuO
Solubilityinsoluble in ethanol; negligible solubility in water; soluble in NH4OH
Standard Entropy that Formation ((Delta_f H^ heta_298))-450 K J/mol
OdorCharacteristic copper odor

Chemical Properties

Reaction through ammoniaThe reaction of copper hydroxide and ammonia solution outcomes in the formation of a deep blue colour equipment of the facility tetraamminecopper complicated ion(+2).In the existence of oxygen Cu(OH)2 catalyzes the oxidation of ammonia solutions, producing copper ammine nitrates, which space in the type Cu(NO2)2(NH3)x.It contempt dissolves in focused alkali and also forms 2-, as it is a mildly amorphous chemical.It reacts v sulfuric mountain to form copper sulfate.Cu(OH)2 + H2SO4 -> CuSO4 + 2H2OThe bluish link reacts v nitric mountain to form copper nitrate.Cu(OH)2 + 2HNO3 -> Cu(NO3)2 + 2H2OOrganic Reactions

Copper hydroxide is regularly used in organic synthesis by the enhancement of potassium hydroxide and a soluble copper(II) salt.

It is used to produce aryl amines.
Reaction in i m sorry Cu(OH)2 acts as a catalyst to kind an aryl amine (Source)
It is supplied to convert acidic hydrazides come carboxylic acids. That is offered to avoid any reaction v sensitive functional groups during the synthetic of carboxylic acids.
Synthesis that a carboxylic acid from one acidic hydrazide (Source)


Copper hydroxide is created from copper(II) sulfate through the reaction the its dilute solution and sodium hydroxide. However, the output of this technique contains impurities favor water and sodium hydroxide.2NaOH(aq) + CuSO4(aq) -> Cu(OH)2(s) + Na2SO4(aq)It can additionally be developed by the electrolysis that water v the anode as copper.This compound is rarely found as a pure mineral it is greatly found merged with CO2 as basic copper(II) lead carbonate which is the mineral malachite. The mineral the Cu(OH)2 is spertinite.2Cu(OH)2 + CO2 -> Cu2CO3(OH)2 (malachite) + H2O

Applications of Copper Hydroxide

It is provided in the production of rayon, as copper hydroxide in ammonia solution deserve to dissolve cellulose. The systems of Cu(OH)2 in NH3 solution is known as Schweizer’s reagent.It is supplied to treat fish in the aquarium industry, together it have the right to kill outside parasites, flukes, marine ich, brook and marine velvet.It can be provided as a replacement to the Bordeaux mixture, i m sorry is a fungicide and nematicide.Cu(OH)2 is additionally sometimes offered as a colourant in the ceramic industry.It is supplied in a product i beg your pardon is offered to control the root growth the a potted plant.Copper hydroxide and copper sulfate are provided in pesticides and insecticides in the type of a mixture.It is additionally used together a wood preservative.
The mineral malachite(copper lead carbonate hydroxide) (Source)


Excessive inhalation of its vapour deserve to lead to cough and shortness of breath, among other things. If inhaled immediately go to fresh air. If the human is not breathing, administer artificial breathing.Its vapours are major eye irritants and also the direct contact of copper hydroxide through the eye can ruin the eye tissue. Wash with eyes open up for 15 come 20 min till the chemistry is washed.Prolonged skin contact can cause irritation and also even allergies if continuously exposed to it. Wash for 15 come 20 min v soap until the chemistry is washed off.


What space the problems caused by the gulp down of copper hydroxide?

It is slightly toxic upon ingestion. It does not reason death but, nausea, vomiting, salivation, gastric pain, diarrhea, capillary damage and liver and kidney damages are several of the numerous problems brought about by the ingestion.

What is the chemical surname of Cu2CO3(OH)2?

The surname of the chemical Cu2CO3(OH)2 is copper carbonate hydroxide and also it additionally exists together a mineral dubbed Malachite.

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Does copper hydroxide have actually an ionic link or a name: coordinates bond?

It is external inspection by an ionic bond between one Cu+2 and two OH– ions.

More on inorganic Compounds

Hydrosulfuric acid (H2S)Ammonium Persulfate ((NH4)2S2O8)
Chlorine Trifluoride (ClF3)Barium carbonate (BaCO3)
Sodium Sulfate (Na2SO4)Chromic acid (H2CrO4)