Aluminium nitrate nonahydrate Chemical Properties

Melting point:

73 °C(lit.)

Boiling point:

100°C/760mmHg

Density 

1.25

storage temp. 

Store at +5°C to +30°C.

solubility 

ethanol: very soluble(lit.)

form 

Solid

color 

White

PH

2.0-4.0 (50g/l, H2O, 20℃)

Water Solubility 

64 g/100 mL (25 ºC)

Sensitive 

Hygroscopic

Merck 

14,352

Exposure limits

NIOSH: TWA 2 mg/m3

Stability:

Strong oxidizer - contact with combustible material may lead to fire. Incompatible with water, most common metals, organics. Moisture-sensitive.

InChIKey

SWCIQHXIXUMHKA-UHFFFAOYSA-N

LogP

-0.129 (est)

CAS DataBase Reference

7784-27-2(CAS DataBase Reference)

Safety Information

Hazard Codes 

O,Xi,Xn

Risk Statements 

8-36/38-36-22

Safety Statements 

17-26-36

RIDADR 

UN 1438 5.1/PG 3

WGK Germany 

1

RTECS 

BD1050000

TSCA 

Yes

HazardClass 

5.1

PackingGroup 

III

HS Code 

28342980

Toxicity

LD50 orally in Rabbit: 3671 mg/kg

MSDS

• Language:English Provider:Aluminium nitrate nonahydrate
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Aluminium nitrate nonahydrate Usage And Synthesis

Uses

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

Preparation

The nonahydrate is prepared by treating aluminum, aluminum hydroxide, aluminum oxide, or aluminous mineral with nitric acid. The nitrate is crystallized from the solution.

Reactions

Since Al(NO3)3 or its salt hydrates dissociates to Al3+ and NO3– ions in the aqueous solution, its reactions in solutions are those of Al3+ . It is partially hydrolyzed, producing H3O+ and thus accounting for the acidity of its solution in water. The products constitute a complex mixture of mono- and polynuclear hydroxo species. Aluminum nitrate is soluble in bases, forming aluminates, [Al(OH)4(H2O)2]–. It decomposes to Al2O3 when heated at elevated temperatures.

Chemical Properties

Aluminium nitrate nonahydrate is white crystalline powder

Uses

It finds use in tanning leather, antiperspirant, corrosion protection, extraction of uranium, nitrating agent. It is an effective dopant for producing highly conductive thin film by utilizing the sol gel method.

Uses

Aluminium nitrate nonahydrate is used in metal standard solutions; extraction of uranium.

Purification Methods

Crystallise the nitrate from dilute HNO3, and dry it by passing dry nitrogen through the crystals for several hours at 40o. After 2 recrystallisations of ACS grade, it had S, Na and Fe at 2.2, 0.01 and 0.02 ppm, respectively.

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