Aluminium nitrate

Aluminium nitrate (9H2O) [7784-27-2 (9H20) 13473-90-0] M 375.1. Crystd from dilute HNO3, and dried by passing dry nitrogen through the crystals for several hours at 40°. After 2 recrystns of ACS grade it had S, Na and Fe at 2.2, 0.01 and 0.02 ppm resp. 

Aluminium nitrate Ammonium persulphate Barium nitrate/peroxide Calcium nitrate/peroxide Cupric nitrate... 

Aluminium borohydride Aluminium chloride Aluminium chlorate Ammonium tetrachloroaluminate Aluminium fluoride Aluminium trihydroxide Aluminium ammonium sulphate Aluminium potassium sulphate Aluminium nitride Aluminium nitrate Sodium aluminate Aluminium sodium aluminate Aluminium phosphate Aluminium phosphide Aluminium borate Aluminium oxychloride Aluminium fluorosilicate Aluminium magnesium silicate Aluminium sulphate... 

Ti-Al]-beta (Si/Al < 150) Prehydrolysis method-conventional method using amorphous silica (Arosol 200), tetraethyl titanate, sodium aluminate/aluminium nitrate as sources of Si, Ti, and Al, respectively. Crystallization at 408 K by rotation (60rpm) zeolite yield <7%. 

Matijevic, E., Janauer, G. E. and Kerker, M. J. Coll. Sci. 19 (1964) 333. Reversal of charge of hydro-phobic colloids by hydrolyzed metal ions, I. Aluminium nitrate. 

Aluminium nitrate Unknown s Aqua regia Unknown n... 

LDHs with Ni/Al molar ratio of 2.5 have been synthesized by a sol-gel method using nickel acetylacetonate and aluminium isopropylate as precursors. The sol-gel synthesized samples exhibited lower crystalhte dimensions and greater BET surface areas compared with coprecipitated samples prepared from an aqueous solution of nickel and aluminium nitrates [19,172]. 

Robins, R.G. (1967) Hydrothermal precipitation in solutions of thorium nitrate, ferric nitrate, and aluminium nitrate. J. inorg. nud. Chem. 29 431-435... 

Blaedel, W.J., Panes, J.J. Titration of Nitric Acid in Solutions of Aluminium Nitrate. Anal. Chem. 22, 910-914 (1950). 

Explosifs N (nitrates) b I aluminium (Nitrate Explosives with Aluminum). See under ALUMINUM CONTAINING EXPLOSIVES in Vol 1, pp A146-L A148-L... 

Aluminium nitrate (9H2O) [7784-27-2] M 375.1. Crystd from dilute HNO3, and dried by passing dry nitrogen through the crystals for several hours at 40°. 

For example, aluminium is an element which is made up of only aluminium atoms. It is not possible to obtain a simpler substance chemically from the aluminium atoms. You can only make more complicated substances from it, such as aluminium oxide, aluminium nitrate or aluminium sulfate. 

The basic pattern of the coagulation of polymer latices with aluminium salts has been clearly demonstrated by the work of Matijevic and his collaborators using styrene-butadiene (26) polyvinyl chloride (27) and PTFE (28) latices. The results obtained by Matijevic and Force (26) for the coagulation of styrene-butadiene latices using aluminium nitrate are shown in Figure 5. From these it can be seen that up to a pH of ca. 3.4 the c.c.c. remains constant at 5 x 10 mol dm 3 and then decreases between pH 3.4 and 4.8 to reach a constant value of ca. 2.5 x 10 6 mol dm 3 between pH 4.8 and 6.0. The region of restabilization as positively charged particles can also be seen on this "domain" plot. 

The NiO/NiAl30< catalyst was prepared in our laboratory by coprecipitation of nickel nitrate hexahy drate and aluminium nitrate nonahydr te following a method described elsewhere [3]. The samples were calcined in an oxidant atmosphere at 1023 K for a period of time of 3 hours. 

Nitration with mixtures of metal nitrates and acetic anhydride (or acid) was studied by Menke, and later by Spiegel and Haymann [112] and Bacharach [113], It has been shown that only the nitrates which readily hydrolyse, such as ferric, nickel, cobalt, aluminium nitrates, have nitrating properties. 

The 27A1 nutation spectra were measured at 104.26 MHz using a Bruker MSL-400 multinuclear NMR spectrometer with a high-power static probe-head and a 5 mm diameter horizontal solenoidal coil. Using an aluminium nitrate solution the amplitude of the rf pulse (corf/27c) was adjusted and kept at a constant value of 70 5 kHz unless otherwise stated. Nutation experiments were performed on the same amount of each sample and the same number of transients was accumulated for samples in the same series. The rf pulse length was increased in ln.s increments from 2 M-s to 65 is. The spectral width was 125 kHz, the recycle delay 0.2 s and the number of transients accumulated in each measurement was between 2000 to 4000. 

Fig. 14. LogtcocI against pH for a PTFE latex uaing aluminium nitrate as the ccagulaiing electrolyte.

In any case there will be precipitates and the solution needs therefore to be clarified. This operation should be performed just before feeding the solution into the counter-current extraction step. The adjustment by sodium and aluminium nitrate must therefore be performed first. The addition of an acid deficient Na-AI nitrate solution on the other side would allow stopping the denitration at a higher residual free nitric acid concentration, i.e. at less critical process control conditions. As to the precipitates, uncontrolled actinide amounts may be entrained by them. 

When the brushes are brought into contact with solutions containing multivalent ions the picture described above changes dramatically. To demonstrate the effect the same PMAA brushes as described above were exposed to solutions containing multivalent ions. Figure 25 shows as examples changes of brush thickness with increasing ion concentration when the brushes are exposed to sodium, calcium, and aluminium nitrate solutions [74]. 

Fig. 25 Swollen thickness of PMAA brushes as a function of the external salt concentration for aqueous sodium, calcium, and aluminium nitrate solutions. Values at a concentration of 10 6 mol L 1 correspond to the swelling in pure MilliQ water. The dry film thicknesses were 42 nm (stars), 45 nm (circles) and 46 nm (squares)...

NH4)3A1Mo6024H6 was prepared according to Hall [13] a solution of aluminium nitrate (20 mL, 3.1.10 mol) is added to a boiling ammonium heptamolybdate solution (80 mL, 4.2.10 mol). A white precipitate appears and the still warm solution is filtrated. The precipitate is recrystallised twice in water. 

In analysis of water or soil extracts, the only ion which may cause serious interference to sodium measurements is calcium. This usually happens when calcium occurs in a much higher concentration than sodium. For instance, water extracts of gypsiferrous soils can contain up to 30-32 meq/1 of calcium while sodium level may be less than 1 meq/1. In general for a particular instrument and type of flame, there may be interference effects from some of the other cations or anions present in the test solution and these effects must either be suppressed or measured. The calcium ion sometimes tend to enhance sodimn emission and the effect may be measured for a range of calcium sodium ratios and appropriate corrections applied or in some cases the interference may be suppressed by addition of aluminium nitrates. 

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