Inorganic forms

Sulfur might be present in inorganic forms elemental S, hydrogen sulfide H2S, carbonyl sulfide COS, or positioned within organic molecules as in the following ... 

Phosphorus, like nitrogen, is an essential constituent of living matter where it may be partly in combination (as phosphate groups) with organic groups, for example in lecithin and egg yolk, or mainly in inorganic form, as calcium phosphate(V), in bones and teeth. 

Synthetic organic chelates and natural organic complexes are sometimes more effective agronomically per unit of micronuttient than inorganic forms, but the organic materials are more expensive. The chelates can be used with both orthophosphate and polyphosphate Hquids and suspensions. 

Feed Ga.s Purifica.tion. Because nickel-based reforming catalysts are quite sensitive to sulfur, halogen, and heavy metal poisons which may be found ia natural gas, a feedstock purification system is normally required. Sulfur compounds, ia both organic and inorganic forms, are the most common... 

Lead tetramethyl and lead tetraethyl are covalent lipophilic liquids of low water solubility. Certain inorganic forms of lead, for example, lead tetrachloride, have similar properties, but other forms such as lead nitrate and lead dichloride are ionic and water soluble. Covalent and lipophilic forms of lead, like lipophilic forms of organomercury and organotin, can readily cross membranous barriers such as the... 

Organoarsenic compounds have been of importance in human toxicology but have not as yet received much attention in regard to environmental effects. Like methyl mercury compounds, they are both synthesized in the environment from inorganic forms and released into the environment as a consequence of human activity (Environmental Health Criteria 18). They can cause neurotoxicity. 

Methyl arsenic, like methyl mercury, is generated from inorganic forms of the element by methylation reactions in soils and sediments. However, the mechanism is evidently different from that for mercury, depending on the attack by a methyl car-bonium ion rather than a methyl carbanion (Craig 1986, Crosby 1998). Methylation... 

M. A. Adams and J. S. Pate, Availability of organic and inorganic forms of phosphorus to lupins (Lupinus spp.). Plant Soil 745 107 (1992). 

Another transfer, which is rather more difficult to deal with, is the conversion from organic to inorganic forms of MN (13). Because these reactions are biologically catalyzed, their simulation depends on a thorough description of the... 

A number of essential organic molecules is required and represents more than 15 % of the cell. They are all made from the elements, H, C, N, O, P, S and Se, all of which except phosphorus are in coded form in amino acids. From their simple inorganic forms in the environment they give rise to all DNA (RNA), lipids, saccharides and proteins, and all small molecules participating in their synthesis. 

Morphosynthesis of complex inorganic forms using pollen grain templates. Chemical Communications, 2784-2785. 

Oxidation of soluble organic nitrogen to inorganic forms of nitrogen... 

Massive enrichment of organolead relative to inorganic lead is observed in fish tissues, while incorporation of inorganic forms appears to be very low (mean ratio 0.76). The highest alkyllead ratios are observed for Me2Et2Pb (mean of all fish species, 2580)115. 

After its creation 14C gets oxidized to 14C02 and enters the biosphere it is present in the environment in organic form (plants and animals) and inorganic form (14C02 in atmosphere,... 

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