Slags definition

In a definitive series of experimental investigations H. N. Wilson showed that the quinolinium salt, (C isNJ fPCV I2M0O3]3- was anhydrous, contained exactly 12 moles of molybdenum trioxide per mole of phosphate, that the precipitate had a negligible solubility and could be dried to constant weight in two hours at 105 °C. This precipitate also lent itself to a precise alkalimetric titration. In the presence of citric acid interference by silica was inhibited so that the method was admirably suitable for the analysis of basic slags or fertilizers.34... 

A broader definition than that confined to solutions is demanded in some fields of chemistry (e.g., in high temperature reactions of acids, bases, and salts). In the foimation of metallulgical slags, at furnace tempeiatuies, calcium oxide is used as base and silicon oxide and aluminum oxide as acids calcium aluminosilicate is produced as a fused salt. Sodium carbonate and silicon oxide when fused react to form the salt sodium silicate with the evolution of carbon dioxide. In this sense ... 

A key factor for successful MHD operation is the degree of interaction between plasma potassium seed and the slag medium. Using slag activity data from the present studies, it is possible to predict conditions under which plasma seed will be continuously depleted by slag absorption of alkali. Plante et al. ( ) presented similar arguments earlier, based on their data for the binary oxide systems. A more definitive analysis can now be made from the present data on complex synthetic and actual slag systems. 

There are regions in the combustion space where it is difficult to establish whether or not the problem is one of fouling or slagging and indeed it may be necessary to change the definition at a particular location as the deposition process proceeds. For instance on water tubes, because of the relatively low temperature of the surface at the beginning of the deposition process, the deposit may reside as individual particles. As the accumulation of deposit continues the outer surfaces... 

Although pozzolans, ground granulated slag and finely divided mineral powders fall within the above definition of admixtures they are generally treated separately and are not included in this publication. 

Includes mineral fiber onissions from faculties manufacturing or processing glass rock or slag fibers (or other mineral-derived fibers) of average diameter of 1 pm or less. (This definition is currently under review.)... 

Give the definition of a slag and identify the slag in the reaction. 

Lime, in any definition, is very important for many chemical processes. It is the most inexpensive agent for the neutralisation of acidic media and for slag in steel making. It is widely used in agriculture and as the basis for certain types of concrete and plaster. The world production of lime is such that it is ranked in sixth place of chemical product production. 

Lux-Flood definition is less common than that by Lewis. It is mainly applicable for ionic melts, oxide-containing glasses, and metallnrgical slags. It defines acids as acceptors of oxide ion (0 ) and its acceptors are referred to as Lux aeids. 

The first fundamental principle is that acid refractories tend to resist acid slags better than basic slags and, conversely, basic refractories tend to resist basic slags better than acid slags. The definitions of acidity and basicity in room-temperature solution chemistry and of refractory chemistry at elevated temperature have a key difference. 

There are more complex definitions of acidity and basicity for high-temperature chemistry than those given above. For example, in steel refining, the term V -ratio is used where a ratio exceeding 1.0 implies a basic chemistry (usually a basic slag chemistry), and a ratio below 1.0 implies an acid chemistry. In definitions of this sort, the V-ratio can be expressed in terms such as the following ... 

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