Organic phosphorus compounds list

In addition to the compounds listed in Table 3.5, there were a number of additional organic phosphorus compounds found only in water from the ENR outflow, and these are listed in Table 3.6. It might be reasonable to assume that these were compounds formed within the treatment areas, although further quantitative experiments would be needed to verify this. 

This appendix provides a list of some of the most common organic phosphorus compounds found in the environment, ft also includes complex inorganic phosphates (condensed phosphates) and synthetic organic phosphates commonly used in assays of phosphatase activity. It is not an exhaustive list, but rather provides a handy... 

List of Select Organic Phosphorus Compounds Found in the Environment... 

To be useful as CVD precursors, a metallo-organic compound should be stable at room temperature so that its storage and transfer are not a problem. It should also decompose readily at low temperature, i.e., below 500°C. The compounds listed in Table 4.1 meet these conditions with the exception of the alkyls of arsenic and phosphorus, which decompose at higher temperatures. For that reason, the hydrides of arsenic and phosphorus are often preferred as CVD precursors (see Ch. 3). These hydrides however are extremely toxic and environmental considerations may restrict their use. 

We look forward to the addition of other chromophores substituted with heavy atoms to the short list compiled in this work. The preparation of gas phase telluro-ketones appears imminent. A variety of silicon substituted compounds have been reported including silanones (RR Si=0), silanethiones (RR Si=S), silaisonitriles (RNSi), silenes (R R"Si=CRjRj) and others. Phosphorus compounds such as phosphaallenes (RC=P=X), phosphaalkenes (RR C=PR") and diphosphenes (RP=PR ) have been synthesized by a number of groups A few compounds containing As, Sb, Bi, and Ge atoms have also been reported We are confident that many of these new species will have properties which are sufficiently at variance with those of conventional organic chromophores to make spectroscopic studies both novel and rewarding. 

Organic compounds that contain phosphorus include ATP, NADP, and the phospholipids. The phosphate group is often temporarily attached to other organic compoimds, such as pyruvate, as part of metabolic reactions, like glycolysis. As listed in Table 22.8, many of the phosphorus-containing biochemicals are found in seawater as a result of cell lysis and excretion. 

REACH will obviously helpfill this much-needed gap in information. It can be surmised that the phosphorus alternatives to BFRs listed in the case studies above are generally safer because of the non-organic, less bioaccumulative nature of the compounds. Some alternative compounds are in need of more research depending on the type of mix used. Specific information on the exact chemical composition was generally not available. However, it is vital to remember that, within the context of... 

This review is intended to cover most of the aspects of NMR in phosphorus chemistry, especially stressing those aspects directly related to electronic and structural factors. Some subjects will only be briefly reviewed, e.g. resonances in solid compounds, in metal complexes [this subject has been treated in a previous article in this seriesa969,1)] and biological applications. All the compounds reviewed are tabulated in either Formula Index I (inorganics) or Formula Index II (organics), the whole comprising of more than four thousand five hundred entries. These indicesf list all available chemical shifts for phosphorus and fluorine those for other nuclei (except protons) are reported in the text of this review. 

The present chapter includes commercially available organic chemicals. Most of the organo- phosphorus, boron, silicon, alkali metal compounds and metal ion salts are in Chapter 4. Naturally occurring commercially available organic compounds of use in biochemistry, molecular biology and biology are included in Chapter 5. Abbreviations of words and some journal names are listed in Chapter 1, pages 1 and 2. 

Sulfur, phosphorus, and silicon compounds. Some absorption bands of the heteroatoms S, P, and Si commonly seen in organic compounds are listed in Tables 4.15-4.17. There are many classes of compounds containing S, P, and Si atoms detailed discussions of these compounds may be found in the texts aheady recommended. 

The figures for the heat of combustion as such play a subordinate part in pyrotechnics. They arc of importance in those formulations that burn in air and contain an excess of a fuel beyond the equivalent amount of oxidizer. The excess fuel is most often magnesium or an organic binder. Also, in many incendiaries, the major fuel such as magnesium or magnesium alloy bodies as well as most of the incendiary filler materials (kerosine, phosphorus) burn in ambient air. Table 20 furnishes a list of elements and Table 21 a list of compounds whose caloric output and other data may be of interest. Figures for the heat output per unit volume are theoretical, realized only if the substance bums as a compact non-porous solid or liquid. 

---