Infrared Spectra of Aluminum Salt Solutions.

1981 ◽  
Author(s):  
J. F. McIntyre ◽  
R. T. Foley ◽  
B. F. Brown
Keyword(s):  
Infrared Spectra ◽  
Aluminum Salt ◽  
Salt Solutions

Infrared Spectra of Aluminum Salt Solutions

1982 ◽  
Vol 36 (2) ◽  
pp. 128-136 ◽  
Author(s):  
J. F. McIntyre ◽  
R. T. Foley ◽  
B. F. Brown
Keyword(s):  
Absorption Band ◽  
Infrared Spectra ◽  
Molecular Level ◽  
Chemical Reactivity ◽  
Aluminum Salt ◽  
Salt Solutions ◽  
Absorption Bands ◽  
Bending Mode ◽  
Structural Differences ◽  
Aluminum Surfaces

Aluminum salt solutions activate metallic aluminum surfaces at different rates. The objective of this investigation was to attempt to establish whether or not structural differences at the molecular level could account for the chemical reactivity. The infrared spectra of various concentrations of aluminum chloride, aluminum nitrate, aluminum perchlorate, and aluminum sulfate were measured. The spectra included several general features: (1) a broadening of the OH stretching band of water, (2) a splitting of the OH stretch of water into several absorption bands, (3) the emergence of a new absorption band at 2400 cm−1 (related to dimer formation), (4) splitting of the NO3− absorption band at 1370 cm−1 (5) occasional splitting of the OH bending mode of water, (6) no direct evidence of anion-cation interaction for AlCl3, Al(CIO4)3, and Al2(SO4)3. In general, there was no difference at the molecular level between these aluminum salt solutions that would account for differences in chemical reactivity.

HYDROLYTIC REACTIONS AND PROPERTIES OF DILUTE ALUMINUM SALT SOLUTIONS

1982 ◽  
Vol 62 (4) ◽  
pp. 559-569 ◽  
Author(s):  
S. SHAH SINGH
Keyword(s):  
Infrared Spectra ◽  
Aluminum Chloride ◽  
Aluminum Sulfate ◽  
Aluminum Nitrate ◽  
Aluminum Salt ◽  
Salt Solutions ◽  
Subtraction Technique ◽  
Dilute Solutions ◽  
Average Composition ◽  
Hydrolysis Of

Experiments were done to characterize the hydrolyzed solutions of aluminum nitrate, aluminum chloride and aluminum sulfate. The hydrolysis of the dilute solutions (10−3M) was accomplished under reflux process at 92 °C. The results showed that anions associated with Al have an effect on hydrolysis of aluminum and the order of ease of hydrolysis for similar concentrations of Al was NO3 > Cl > SO4. The average composition of the hydroxyaluminum cation (Aln(OH)m) was calculated as [Formula: see text] and [Formula: see text] for hydrolyzed solutions of Al(NO3)3, AlCl3, and Al2(SO4)3, respectively. The infrared spectra of the hydrolyzed species of aluminum were obtained by a subtraction technique and infrared peaks at 1410 cm−1 and 1085 cm−1 in the AlCl3 system and at 1435 cm−1 and 1070 cm−1 in the Al2(SO4)3 system were assigned to polynuclear hydroxyaluminum species having been formed due to reflux process.

The Similarity of Aluminum Salt Solutions and Aluminum Hydrosols

1934 ◽  
Vol 56 (9) ◽  
pp. 1844-1846 ◽  
Author(s):  
T. H. Whitehead ◽  
J. P. Clay
Keyword(s):  
Aluminum Salt ◽  
Salt Solutions

Studies on Cd(OH)2 precipitated from various cadmium salt solutions

1967 ◽  
Vol 45 (24) ◽  
pp. 3203-3206 ◽  
Author(s):  
O. K. Srivastava ◽  
E. A. Secco
Keyword(s):  
Aqueous Solutions ◽  
Infrared Spectra ◽  
Cadmium Chloride ◽  
Ammonia Solution ◽  
Salt Solutions ◽  
Chloride Sulfate ◽  
Cadmium Salt

Infrared spectra and thermogravimetric (t.g.a.) and differential thermal (d.t.a.) analyses are reported for Cd(OH)2 obtained by the action of dilute ammonia solution on aqueous solutions of cadmium chloride, sulfate, and nitrate. The analyses indicate that the precipitated cadmium hydroxide from these solutions is often admixed with basic salts.

Ultraviolet spectra of aluminum salt solutions

1982 ◽  
Vol 21 (3) ◽  
pp. 1167-1172 ◽  
Author(s):  
J. F. McIntyre ◽  
R. T. Foley ◽  
B. F. Brown
Keyword(s):  
Aluminum Salt ◽  
Salt Solutions ◽  
Ultraviolet Spectra
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