Ni clo3 2 compound name – NiCl3·2H2O, an intriguing compound with a rich chemistry, invites us to explore its fascinating world. From its captivating physical appearance to its remarkable chemical reactivity, this compound unveils a symphony of scientific wonders that will leave you captivated.
As we delve into the depths of NiCl3·2H2O, we will unravel its molecular secrets, uncover its diverse applications, and navigate the essential safety considerations associated with this versatile compound.
Chemical Formula
The chemical formula of Nickel(II) chloride hexahydrate is NiCl 3· 2H 2O. It indicates that the compound contains one Nickel(II) ion (Ni 2+), three chloride ions (Cl –), and two water molecules (H 2O) per formula unit.
Molecular Weight
The molecular weight of NiCl 3· 2H 2O can be calculated by adding the atomic masses of each atom in the formula:
- Nickel (Ni): 58.69 g/mol
- Chlorine (Cl): 35.45 g/mol
- Hydrogen (H): 1.01 g/mol
- Oxygen (O): 16.00 g/mol
Molecular weight = (58.69 g/mol) + (3 x 35.45 g/mol) + (2 x 2 x 1.01 g/mol) + (2 x 16.00 g/mol) = 237.69 g/mol
Physical Properties
Nickel(II) chloride hexahydrate (NiCl 3· 2H 2O) appears as emerald-green crystals or powder.
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Solubility
NiCl 3· 2H 2O is highly soluble in water, forming a green solution. It is also soluble in other polar solvents such as methanol and ethanol.
Chemical Properties
Nickel(II) chloride hexahydrate, NiCl 3· 2H 2O, exhibits diverse chemical properties due to its coordination complex nature and the presence of labile water molecules.
Chemical Reactivity
NiCl 3· 2H 2O is a reactive compound that readily undergoes chemical reactions. It reacts with various reagents, including acids, bases, and reducing agents.
- Reaction with Acids:NiCl 3· 2H 2O reacts with strong acids, such as hydrochloric acid (HCl), to form the corresponding tetrachloro complex, NiCl 42-.
- Reaction with Bases:NiCl 3· 2H 2O reacts with bases, such as sodium hydroxide (NaOH), to form the insoluble hydroxide, Ni(OH) 2.
- Reaction with Reducing Agents:NiCl 3· 2H 2O can be reduced by strong reducing agents, such as sodium borohydride (NaBH 4), to form the metal, nickel (Ni).
Coordination Chemistry
NiCl 3· 2H 2O is a coordination complex, meaning it contains a central metal ion (Ni 2+) surrounded by ligands (Cl –and H 2O). The coordination chemistry of NiCl 3· 2H 2O is characterized by its ability to form various complexes with different ligands.
- Ligand Exchange Reactions:NiCl 3· 2H 2O can undergo ligand exchange reactions, where the chloride ions are replaced by other ligands. For example, it reacts with ammonia (NH 3) to form the tetraammine complex, [Ni(NH 3) 4]Cl 2.
- Formation of Coordination Polymers:NiCl 3· 2H 2O can also form coordination polymers, which are extended structures formed by the linking of metal ions through bridging ligands. In the case of NiCl 3· 2H 2O, it can form polymeric chains with bridging chloride ions.
Preparation and Synthesis: Ni Clo3 2 Compound Name
Nickel(II) chloride hexahydrate (NiCl 2·6H 2O) is the most common starting material for the preparation of NiCl 3·2H 2O.
Dehydration
NiCl 2·6H 2O can be dehydrated by heating it in the presence of a drying agent, such as concentrated sulfuric acid or phosphorus pentoxide. The reaction proceeds as follows:
NiCl2·6H 2O + H 2SO 4→ NiCl 2+ 6H 2O + H 2SO 4
The resulting NiCl 2can then be dissolved in water and treated with chlorine gas to form NiCl 3·2H 2O:
NiCl2+ Cl 2+ 2H 2O → NiCl 3·2H 2O
Industrial Applications
NiCl 3·2H 2O is used in a variety of industrial applications, including:
- As a catalyst in the production of organic chemicals, such as vinyl chloride and polyethylene.
- As a mordant in the dyeing of textiles.
- As a preservative for wood and leather.
- As a flux in soldering and brazing.
Safety and Handling
Nickel(II) chloride hexahydrate (NiCl3 · 2H2O) poses several potential hazards that require careful handling and storage.
Potential Hazards, Ni clo3 2 compound name
- Toxicity:NiCl3 · 2H2O is toxic by inhalation, ingestion, and skin contact. It can cause irritation to the eyes, skin, and respiratory tract.
- Carcinogenicity:Nickel compounds, including NiCl3 · 2H2O, are classified as possible carcinogens by the International Agency for Research on Cancer (IARC).
- Environmental hazard:NiCl3 · 2H2O is harmful to aquatic organisms and can contaminate soil and water sources.
Safe Handling and Storage
To ensure the safe handling and storage of NiCl3 · 2H2O, the following guidelines should be followed:
- Personal protective equipment:When handling NiCl3 · 2H2O, wear appropriate personal protective equipment (PPE), including gloves, a lab coat, safety glasses, and a respirator if necessary.
- Ventilation:Ensure adequate ventilation in the work area to prevent inhalation of dust or fumes.
- Storage:Store NiCl3 · 2H2O in a cool, dry, well-ventilated area away from incompatible materials, such as strong acids and bases.
- Waste disposal:Dispose of NiCl3 · 2H2O properly according to local regulations for hazardous waste.
FAQ Section
What is the chemical formula of NiCl3·2H2O?
The chemical formula of NiCl3·2H2O is Nickel(II) chloride hexahydrate.
What is the molecular weight of NiCl3·2H2O?
The molecular weight of NiCl3·2H2O is 237.69 g/mol.
What is the physical appearance of NiCl3·2H2O?
NiCl3·2H2O appears as green crystals or powder.
What is the solubility of NiCl3·2H2O in different solvents?
NiCl3·2H2O is soluble in water, ethanol, and acetone.
What are the potential hazards of NiCl3·2H2O?
NiCl3·2H2O is corrosive and toxic. It can cause skin irritation, eye damage, and respiratory problems.
