Aluminium nitrate

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Aluminium nitrate
Aluminium nitrate.png
Dusičnan hlinitý.JPG
Identifiers
CAS number13473-90-0 YesY
7784-27-2 (nonahydrate)
PubChem26053
ChemSpider24267 YesY
RTECS numberBD1040000 (anhydrous)
BD1050000 (nonahydrate)
Jmol-3D imagesImage 1
Properties
Molecular formulaAl(NO3)3
Molar mass212.996 g/mol (anhydrous)
375.134 g/mol (nonahydrate)
Appearancewhite solid
hygroscopic
Odorodorless
Density1.72 g/cm3 (nonahydrate)
Melting point66 °C (151 °F; 339 K) (anhydrous)[1]
73.9 °C (165.0 °F; 347.0 K) (nonahydrate)
Boiling point150 °C (302 °F; 423 K) (nonahydrate) decomposes
Solubility in wateranhydrous:
60.0 g/100ml (0°C)
73.9 g/100ml (20 °C)
160 g/100ml (100 °C)
nonahydrate:
67.3 g/100 mL
Solubility in methanol14.45 g/100ml
Solubility in ethanol8.63 g/100ml
Solubility in ethylene glycol18.32 g/100ml
Refractive index (nD)1.54
Hazards
MSDSExternal MSDS
NFPA 704
Flash point35 °C (95 °F; 308 K)
LD504280 mg/kg, oral (rat)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references
 
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Aluminium nitrate
Aluminium nitrate.png
Dusičnan hlinitý.JPG
Identifiers
CAS number13473-90-0 YesY
7784-27-2 (nonahydrate)
PubChem26053
ChemSpider24267 YesY
RTECS numberBD1040000 (anhydrous)
BD1050000 (nonahydrate)
Jmol-3D imagesImage 1
Properties
Molecular formulaAl(NO3)3
Molar mass212.996 g/mol (anhydrous)
375.134 g/mol (nonahydrate)
Appearancewhite solid
hygroscopic
Odorodorless
Density1.72 g/cm3 (nonahydrate)
Melting point66 °C (151 °F; 339 K) (anhydrous)[1]
73.9 °C (165.0 °F; 347.0 K) (nonahydrate)
Boiling point150 °C (302 °F; 423 K) (nonahydrate) decomposes
Solubility in wateranhydrous:
60.0 g/100ml (0°C)
73.9 g/100ml (20 °C)
160 g/100ml (100 °C)
nonahydrate:
67.3 g/100 mL
Solubility in methanol14.45 g/100ml
Solubility in ethanol8.63 g/100ml
Solubility in ethylene glycol18.32 g/100ml
Refractive index (nD)1.54
Hazards
MSDSExternal MSDS
NFPA 704
Flash point35 °C (95 °F; 308 K)
LD504280 mg/kg, oral (rat)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
Infobox references

Aluminium nitrate is a salt of aluminium and nitric acid, existing normally as a crystalline hydrate, most commonly as aluminium nitrate nonahydrate, Al(NO3)3·9H2O.

Preparation[edit]

Aluminium nitrate is not easily made by adding aluminium to nitric acid, as the aluminium forms a passivation layer.

Aluminium nitrate is made by adding nitric acid to aluminium trichloride. Nitrosyl chloride is produced as a by-product; it bubbles out of the solution as a gas.

Aluminium nitrate nonahydrate can also be made by adding a lead nitrate solution to an aluminium sulfate solution. The insoluble lead sulfate is precipitated out of the solution, leaving a solution of aluminium nitrate.

It can also be prepared by mixing a solution of aluminum sulfate with calcium nitrate. Insoluble calcium sulphate precipitates out of solution, then the aluminum nitrate nonahydrate may be purified by crystallization.

Other cations that may be used for this are barium, strontium and silver since their sulfates are insolubles.

Uses[edit]

Aluminium nitrate is a strong oxidizing agent. It is used in tanning leather, antiperspirants, corrosion inhibitors, extraction of uranium, petroleum refining, and as a nitrating agent.

The nonahydrate and other hydrated aluminium nitrates have many applications. These salts are used to produce alumina for preparation of insulating papers, in cathode ray tube heating elements, and on transformer core laminates. The hydrated salts are also used for the extraction of actinide elements.[2]

It is used in the laboratory and classroom such as in the reaction:

Al(NO3)3 + 3NaOH → Al(OH)3 + 3NaNO3

References[edit]

  1. ^ http://chemister.ru/Database/properties-en.php?dbid=1&id=8810
  2. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8

External links[edit]

Salts and the ester of the Nitrate ion
HNO3He
LiNO3Be(NO3)2B(NO3)4-RONO2NO3-
NH4NO3
OFNO3Ne
NaNO3Mg(NO3)2Al(NO3)3SiPSClONO2Ar
KNO3Ca(NO3)2Sc(NO3)3Ti(NO3)4VO(NO3)3Cr(NO3)3Mn(NO3)2Fe(NO3)3Co(NO3)2,
Co(NO3)3
Ni(NO3)2Cu(NO3)2Zn(NO3)2Ga(NO3)3GeAsSeBrKr
RbNO3Sr(NO3)2YZrNbMoTcRuRhPd(NO3)2AgNO3Cd(NO3)2InSnSbTeIXeFNO3
CsNO3Ba(NO3)2 HfTaWReOsIrPtAuHg2(NO3)2,
Hg(NO3)2
Tl(NO3)3Pb(NO3)2Bi(NO3)3PoAtRn
FrRa RfDbSgBhHsMtDsRgCnUutFlUupLvUusUuo
LaCe(NO3)xPrNdPmSmEuGdTbDyHoErTmYbLu
AcThPaUO2(NO3)2NpPuAmCmBkCfEsFmMdNoLr