Aluminium nitrate

Aluminium nitrate

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Names
IUPAC name Aluminium nitrate
Other names Nitric acid, aluminum salt aluminum nitrate aluminium(III) nitrate
Identifiers
CAS Number	13473-90-0 Y 7784-27-2 (nonahydrate) N
ChemSpider	24267 Y
Jmol 3D model	Interactive image
PubChem	26053
RTECS number	BD1040000 (anhydrous) BD1050000 (nonahydrate)
InChI InChI=1S/Al.3NO3/c;3*2-1(3)4/q+3;3*-1 Y Key: JLDSOYXADOWAKB-UHFFFAOYSA-N Y InChI=1/Al.3NO3/c;3*2-1(3)4/q+3;3*-1 Key: JLDSOYXADOWAKB-UHFFFAOYAJ
SMILES [Al+3].O=[N+]([O-])[O-].[O-][N+]([O-])=O.[O-][N+]([O-])=O
Properties
Chemical formula	Al(NO3)3
Molar mass	212.996 g/mol (anhydrous) 375.134 g/mol (nonahydrate)
Appearance	White crystals, solid hygroscopic
Odor	odorless
Density	1.72 g/cm3 (nonahydrate)
Melting point	66 °C (151 °F; 339 K) (anhydrous) 73.9 °C (165.0 °F; 347.0 K) (nonahydrate)
Boiling point	150 °C (302 °F; 423 K) (nonahydrate) decomposes
Solubility in water	anhydrous: 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 methanol	14.45 g/100ml
Solubility in ethanol	8.63 g/100ml
Solubility in ethylene glycol	18.32 g/100ml
Refractive index (nD)	1.54
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

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

Preparation

Aluminium nitrate cannot be synthesized by the reaction of aluminium with concentrated nitric acid, as the aluminium forms a passivation layer.

Aluminium nitrate may instead be prepared by the reaction of nitric acid with aluminium(III) chloride. Nitrosyl chloride is produced as a by-product; it bubbles out of the solution as a gas.

Aluminium nitrate may also be prepared a metathesis reaction between aluminium sulfate and a nitrate salt with a suitable cation such as barium, strontium, calcium, silver, or lead. e.g. Al₂(SO₄)₃ + 3Ba(NO₃)₂ → 2Al(NO₃)₃ + 3BaSO₄

Uses

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.

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

Al(NO₃)₃ + 3NaOH → Al(OH)₃ + 3NaNO₃

External links

• MSDS of nonahydrate
• Government of Canada Fact Sheets and Frequently Asked Questions: Aluminum Salts

Salts and covalent derivatives of the Nitrate ion
HNO3																	He
LiNO3	Be(NO3)2											B(NO3)4−	C	N	O	FNO3	Ne
NaNO3	Mg(NO3)2											Al(NO3)3	Si	P	S	ClONO2	Ar
KNO3	Ca(NO3)2	Sc(NO3)3	Ti(NO3)4	VO(NO3)3	Cr(NO3)3	Mn(NO3)2	Fe(NO3)3	Co(NO3)2, Co(NO3)3	Ni(NO3)2	Cu(NO3)2	Zn(NO3)2	Ga(NO3)3	Ge	As	Se	Br	Kr
RbNO3	Sr(NO3)2	Y	Zr(NO3)4	Nb	Mo	Tc	Ru	Rh	Pd(NO3)2	AgNO3	Cd(NO3)2	In	Sn	Sb	Te	I	Xe(NO3)2
CsNO3	Ba(NO3)2		Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg2(NO3)2, Hg(NO3)2	Tl(NO3)3	Pb(NO3)2	Bi(NO3)3	Po	At	Rn
Fr	Ra		Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Uut	Fl	Uup	Lv	Uus	Uuo
		↓
		La	Ce(NO3)3, Ce(NO3)4	Pr	Nd	Pm	Sm	Eu	Gd(NO3)3	Tb	Dy	Ho	Er	Tm	Yb	Lu
		Ac	Th	Pa	UO2(NO3)2	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr