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Ammonium copper (II) sulphate hexahydrate
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Description
Ammonium Copper(II) Sulphate Hexahydrate
Other Names: Diammonium copper(II) sulfate hexahydrate, Ammonium cupric sulfate hexahydrate
CAS Number: 13587-26-3
Sum Formula: (NH₄)₂Cu(SO₄)₂·6H₂O
Molar Mass: 277.71 g/mol
Appearance: Blue to blue-green crystalline solid
Ammonium copper(II) sulphate hexahydrate is a crystalline double salt composed of copper(II) sulfate and ammonium sulfate with six molecules of hydration water. It is primarily used in laboratory settings for studying crystallization and coordination chemistry involving transition metal complexes.
Chemical and Physical Properties
Density: Approx. 2.05 g/cm³
Melting Point: Decomposes before melting
Boiling Point: Not applicable (decomposes)
Solubility in Water: Soluble
Solubility in Other Solvents: Slightly soluble in alcohol; insoluble in nonpolar organic solvents
Odor: Odorless
Applications
Crystallography: Used for growing large and well-formed colored crystals.
Inorganic Chemistry: Serves as a source of copper(II) and ammonium ions in synthesis.
Educational Use: Demonstrates double salt formation and metal-ligand coordination.
Safety
Signal Word: Warning
Hazard Statements:
H302: Harmful if swallowed.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H410: Very toxic to aquatic life with long lasting effects.
Precautionary Statements:
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 and eye protection.
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P362+P364: Take off contaminated clothing and wash it before reuse.
Handling and Storage
Storage Conditions: Keep in a tightly sealed container in a dry, cool, and well-ventilated area. Protect from heat and moisture.
Handling Precautions: Avoid dust formation. Handle with appropriate protective equipment to prevent exposure to eyes and skin.