352. Aluminum Nitrate

Nomenclature

CAS number: 13473-90-0
Nitric acid aluminum salt (3:1).
AlN3O9; mol wt 213.00.
Al 12.67%, N 19.73%, O 67.60%.
Al(NO3)3.

Description and references

Occurs in several states of hydration of which the nonahydrate is the most stable. Prepn: Gmelins, Aluminum (8th ed.) 35B, p 149-152 (1934). Toxicity data: Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).

Derivative

Nonahydrate.

Nomenclature

CAS number: 7784-27-2
AlN3O9.9H2O; mol wt 375.13.
Al 7.19%, N 11.20%, O 76.77%, H 4.84%.

Description and references

Thermal decompn and γ-pyrolysis: E. El-Shereafy et al., J. Radioanal. Nucl. Chem. 237, 183 (1998).

Properties

Deliquesc crystals; mp 73°; dec at 135°. Oxidizer. Very sol in water, alc; very slightly sol in acetone. Almost insol in ethyl acetate and pyridine. The aq soln is acid. Keep well closed. LD50 orally in rats: 4.28 g/kg (Smyth).

Use

Tanning leather; antiperspirant; corrosion inhibitor; extraction of uranium; nitrating agent. Nonahydrate as a metal standard solution in analytical chemistry.