Descriptive chemistry

Materials information includes toxicity, permissible exposure limits, physical properties, reactivity, corrosivity, thermal and chemical and hazardous effects of inadvertent mixing of different materials.Process information consists of 1) process flow diagrams, 2) process chemistry descriptions, 3) maximum amounts of chemicals, 4) safe ranges for temperatures, pressures, flows oi 5) evaluation of the con.sequences of deviations. 

Most often, such enormous improvements are discussed in a classical way following conventional organic chemistry descriptions, e.g. providing the experimental protocol and briefly giving the results. This is usually not followed by a chemical-engineering explanation. Thus it remains unclear to what extent the batch... 

Frederick Soddy (1921, chemistry description of isotopes) Otto Hahn (1944, chemistry discovery of nuclear fission)... 

The formal defect chemistry description of these processes has already described (Sections 4.3.3 and 8.5.1). 

After briefly presenting some important milestones of MP2//HF studies in the quantum chemistry description of DNA base pairs, we turn to a more extensive discussion of DPT results for extended DNA-base aggregates, including model stacks and real molecular fragments. 

For each site process a written process chemistry description will be generated. The written description should contain current available information on ... 

Although RDX strains the limits of accurate applicability of quantum chemistry methods, they have provided valuable information about the decomposition mechanism. Ultimately, it is expected that quantum chemistry will play a vital role in elucidating the elementary reaction mechanisms for energetic materials. In fact, given the experimental difficulties for molecules such as RDX we must look to quantum chemistry. While the quantum chemistry description of the fundamental properties and elementary reactions of RDX is still a work in progress, much has been... 

Based on the position of an ion in the Hoftneister series, it is possible to foretell the relative effectiveness of anions or cations in an enormous number of systems. The rank of an ion was related to its kosmotropicity, surface tension increments, and salting in and salting out of salt solutions (see below) [25]. A quantitative physical chemistry description of this phenomenon is not far off. Molecular dynamics simulations that considered ionic polarizability were found to be valuable tools for elucidating salt effects [26,27]. 

Clinical chemistry Description of clinical chemistry parameters to be determined... 

We note that in molecular-dynamics (MD) simulations we make no approximations other than the ones implied in the interatomic potentials and the fact that the d5mamics of the atoms is purely classical (no quantum effects on the atomie motion). For example, no approximation is made sis to what type of ehemical reaction can or can not occur complex phenomena such as pressure effects, multi-molecular reactions, and relaxation are explicitly described in NEMD. In this sense, the simulations presented here provide a full-physics, full-chemistry description of energetic materials. 

W. Odling, A Manual of Chemistry Descriptive and Theoretical, Part 1, London, 1861, Advertisement and General Considerations . 

Odling, W. (1861) A manual of chemistry, descriptive and theoretical. Longman, London, Part 1, p. 92... 

From the liquid side of the solid/solution interface, the above phenomena are best approached by the electrostatic or ligand chemistry description or by a combination of both. However, from the solid side of the interface, the charge development depends on proton binding or release processes that occur at the outermost oxygen layer of the oxide lattice. On the solid side of the interface aU proton transfer processes are localized. They can be regarded as acid-base interactions between the oxygen ions at the oxide bounday and one or two interface-structured layer(s) of hydrogen-bonded water molecules in the liquid phase. 

To our knowledge this system has been neither compared to experimental results nor solved. The purpose of its development was just to show how a typical problem can be handled within the framework of a solid state chemistry description. 

Slosson, 1919. Edwin E. Slosson. Creative Chemistry. Descriptive of Recent Achievements in the Chemical Industries. New York Century. 

The lack of a detailed surface reaction mechanism for propane/air combustion on platinum necessitated the use of a global-step reaction model in this work. Secondary hetero-Zhomogeneous chemistry interactions are not taken into account this way (such as the homogeneous conversion of C3Hg to CO and the subsequent conversion of the latter to CO2 on the catalytic surface) a closer-to-reahty description of the in-channel combustion processes in catalytic microreactors is thus not possible. While the impact of such a simplification in cases where total oxidation of the fuel is required is minimal, this does not hold true in catalytic partial oxidation applications. Therein, a detailed surface chemistry description would be necessary. 

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