Aluminum effect

This expression seemed to correlate the data of Anderson (A5) for non-aluminized propellants, but did not work for aluminized propellants. In later work, Sehgal (S2) has studied the aluminum effect in greater detail. He reports that the effect of aluminum appears to cause incomplete combustion. Price (P10) has reported essentially the same observation. Beckstead derived an expression between the frequency of the oscillations and the L of the combustion chamber. The resulting equations were then shown to correlate experimental data. 

Alkaline supplement to the diet, urinary Ca loss, 76 Aluminum, effect on Ca metabolism, 162 Amino acids... 

Another aluminum effect which appears to be age-related is skeletal toxicity. Increased carpal joint width, suggestive of poor bone calcification, was observed in immature rabbits receiving 20 subcutaneous doses of aluminum lactate, but was not seen in neonatal or adult rabbits (Yokel 1987). 

Golub MS, Germann SL. 1998. Aluminum effects on operant performance and food motivation of mice. Neurotoxicol Teratol 20 421-427. 

Morie T, Iwamoto M, Harada N, et al. 1996. Urinary excretion of aluminum Effects of aging and diurnal variation. Arch Gerontol Geriatr 22 287-295. 

Huang JW, Share JE, Grunes DL and Kochian LV (1992) Aluminum effects on ccdciumfluxes at the root apex of aluminum-tolerant and aluminum-sensitive wheat cultivars. Plant Physiol 98 230-237. 

Our study concerned the potential for aluminum toxicity to brook trout (Salveiinus fontinalis) in acidified waters of the Adirondack Mountains of New York State. In this paper we present an analysis of field observations on brook trout survival in acidified Adirondack waters and comparative laboratory bioassay data for evaluation of aluminum effects on brook trout survival and growth. 

Mayor G. H. Remedy R. F. Sprague S. M. and Lovell K. L. (1980) Central nervous system manifestations of oral aluminum effect of parathyroid hormone. Neurotoyicol. 1, 33-42. 

The preference for O acylation of phenols arises because these reactions are kmetically controlled O acylation is faster than C acylation The C acyl isomers are more stable how ever and it is known that aluminum chloride is a very effective catalyst for the conversion of aryl esters to aryl ketones This isomerization is called the Fries rearrangement... 

Calibration of an arc or spark source is linear over three orders of magnitude, and detection limits are good, often within the region of a few micrograms per gram for elements such as vanadium, aluminum, silicon, and phosphorus. Furthermore, the nature of the matrix material composing the bulk of the sample appears to have little effect on the accuracy of measurement. 

Acetonitrile also is used as a catalyst and as an ingredient in transition-metal complex catalysts (35,36). There are many uses for it in the photographic industry and for the extraction and refining of copper and by-product ammonium sulfate (37—39). It also is used for dyeing textiles and in coating compositions (40,41). It is an effective stabilizer for chlorinated solvents, particularly in the presence of aluminum, and it has some appflcation in... 

The incorporation of aluminum increases the blast effect of explosives but decreases the rates of detonation, fragmentation effectiveness, and shaped charge performance. Mixes with aluminum are made by first screening finely divided aluminum, adding it to a melted RDX—TNT slurry, and stirring until the mix is uniform. A desensitizer and calcium chloride may be incorporated, and the mixture cooled to ca 85°C then poured. Typical TNT-based aluminized explosives are the tritonals (TNT + Al), ammonals (TNT, AN, Al), minols (TNT, AN, Al) torpexes and HBXs (TNT, RDX, Al) (Table 14) (223-226). 

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