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Ammonium nickel (II) sulfate hexahydrate
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Description
Ammonium Nickel(II) Sulfate Hexahydrate
Other Names: Diammonium nickel(II) sulfate hexahydrate, Ammonium nickelous sulfate hexahydrate
CAS Number: 56110-30-6
Sum Formula: (NH₄)₂Ni(SO₄)₂·6H₂O
Molar Mass: 290.89 g/mol
Appearance: Pale green to emerald green crystalline solid
Ammonium nickel(II) sulfate hexahydrate is a crystalline double salt composed of nickel(II) sulfate and ammonium sulfate, containing six molecules of crystallization water. It is used in analytical chemistry, electrochemical processes, and as a precursor in the synthesis of nickel-based compounds.
Chemical and Physical Properties
Density: Approx. 1.98 g/cm³
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Solubility in Water: Soluble
Solubility in Other Solvents: Slightly soluble in ethanol; insoluble in organic nonpolar solvents
Odor: Odorless
Applications
Analytical Chemistry: Employed in quantitative analysis of nickel.
Electroplating: Source of nickel ions in electrochemical nickel deposition baths.
Inorganic Synthesis: Used to prepare nickel-containing materials and complexes.
Crystallography: Suitable for growing single crystals for structure determination.
Safety
Signal Word: Danger
Hazard Statements:
H302: Harmful if swallowed.
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H350i: May cause cancer by inhalation.
H360D: May damage the unborn child.
H372: Causes damage to organs through prolonged or repeated exposure (inhalation).
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statements:
P201: Obtain special instructions before use.
P260: Do not breathe dust or mist.
P264: Wash hands thoroughly after handling.
P270: Do not eat, drink or smoke when using this product.
P273: Avoid release to the environment.
P280: Wear protective gloves, protective clothing, eye and face protection.
P302+P352: IF ON SKIN: Wash with plenty of water.
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P308+P313: IF exposed or concerned: Get medical advice/attention.
Handling and Storage
Storage Conditions: Store in a cool, dry, and well-ventilated place. Keep container tightly closed and protected from moisture and incompatible materials.
Handling Precautions: Avoid contact with skin, eyes, and clothing. Use local exhaust ventilation to minimize dust. Handle in accordance with good industrial hygiene and safety practices.