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Aluminium Nitrate
- Asal
- : China
- Nomor CAS
- : 7784-27-2
- Kode HS
- : 2834.29.90
Info Dasar
- IUPAC Name
- : aluminium trinitrate nonahydrate
- Molecular Formula
- : Al(NO3)3·9H2O
- Molecular Weight (g/mol)
- : 375.1300
- Synonyms & Trade Names
- : Aluminium nitrate; Aluminum nitrate; Al(NO3)3.9H2O
- Purity / Assay (%)
- : 98% min
- Grade / Quality Level
- : Technical Grade
- Physical Form
- : Solid
- Concentration
- : Pure substance
- Appearance / Color
- : White to off-white solid
- Odor
- : Odorless
- Melting Point (°C)
- : 73.0000
- Density (g/cm³)
- : 1.7200
- Solubility in Water
- : Freely soluble
- Signal Word
- : Warning
- UN Number
- : 1438
- GHS Hazard Class
- : Oxidizer; Skin irritant; Eye irritant
- H-Statements
- : H272|H315|H319
- P-Statements
- : P210|P220|P221|P260|P264|P280
- REACH Status
- : Registered
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 5.1
- Storage Conditions
- : Cool, dry; oxidizer; away from combustibles
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About Aluminium Nitrate
Aluminium nitrate most commonly exists in its hydrated crystal form, aluminium nitrate nonahydrate, Al(NO3)3·9H2O. It is a white crystalline, water-soluble salt with a molecular weight of 375.15 g/mol. It melts at 73oC and decomposes at 150oC. It is an odourless material and will react explosively upon contact with organic compounds. Its solution is acidic and is a strong oxidising reagent. It can easily dissolve in water and ethanol but not in acetic acid and ethyl acetate.
Manufacturing Process:
Contrary to aluminium chloride, it cannot be synthesised just by adding nitrates containing compounds (such as nitric acid) to aluminium metal. This is because aluminium will form a passivation layer, where there will be a creation of an outer layer on the metal to prevent further chemical reactions from occurring. Hence, aluminium nitrate is typically prepared by the addition of nitric acid to aluminium chloride. Nitrosyl chloride is generated as a byproduct which oozes out of the solution as a gas.
Aluminium nitrate can also be produced by mixing solution of lead nitrate with aluminium sulfate via a metathesis reaction. Insoluble lead sulfate precipitates out of the solution, giving a solution with aluminium nitrate.
