With phosphorus compounds

Melamine-formaldehyde condensates are also useful in textile finishing. For example, they are useful agents for permanent glazing, rot proofing, wool shrinkage control and, in conjunction with phosphorus compounds, flameproofing. 

There are three main dangers with phosphorus compounds ... 

Vanadium is beneficial and possibly essential for humans. It is certainly essential for a number of organisms. Vanadate (oxidation state V) and its derivatives are phosphate analogues, showing both ground state and transition state analogy (both structural and electronic) with phosphorus compounds. The analogy of five-coordinate vanadium compounds with the transition state of phosphate ester hydrolysis is well documented, and explains why so many vanadium compounds are potent inhibitors of phosphatases, ribonucleases and ATPases. 

This chapter develops at first the more frequent combinations of nanoparticles that concern layered silicates associated with phosphorus compounds, as well as metallic hydroxides and halogen compounds. The association of natural layered silicates with intumescent FR (IFR) systems represents one of the main contributions of the combined use of nanoparticles and FRs. Moreover, combinations of layered silicates with other phosphorus compounds have been studied and have led to significant improvements for fire retardancy. 

Modern, high-yield agriculture is dependent on regular fertilization with phosphorus compounds that are either immediately soluble in the soil solution or become soluble at a rate sufficient to supply the crop. A factor to contend with in phosphate fertilization is soil... 

Mark, J. E., Allcock, H. R., West, R. (1992). Inorganic Polymers. Englewood Cliffs, NJ Prentice Hall. A modern treatment of polymeric inorganic materials. Chapter 3 deals with phosphorus compounds. 

The catalytic activity of fine nickel metal is very much reduced and modified when prepared by SHOP or the cation-exchange method, as shown in the previous sections. The partial poisoning of the nickel catalyst with phosphorus compounds brings about almost the same effect. These facts suggest the possible formation of specific and mild active sites of nickel, if nickel metal makes an alloy with phosphorus. 

Reactions of oc-diketones and o-quinones with phosphorus compounds in the syntheses of P-heterocycles (cyclophosphates, phosphorans, spirocyclic compounds) 02CRV629. 

In addition, we have applied successfully the concept of hydrolysis-dehydration reaction with phosphorus compounds to the reaction with sulfur compounds such as sulfites7- as shown below ... 

Since the reactions with phosphorus compounds give relatively high yields of carboxylic amides and esters and ureas, they have been extended to the direct polycondensations of dicarboxylic acids with diamines and bisphenols, of free a-amino acids or dipeptides, and of carbon dioxide and carbon disulfide with diamines under mild conditions to give polyamides, polyesters, polyureas, and polythioureas. 

The main reactions taking place in the detector with phosphorus compounds can be shown in the five reactions given below. All these reactions are written under the assumption that only reactions with the phosphorus oxides such as PO or POz occur in the detector room, since the organic substance is completely burned in the burner. 

Kaeding and Butter modified ZSM-5 with phosphorus compounds. The selectivity toward Cj-C paraffins decreased from 39 to 5 wt% and toward aromatics from 40 to 20 wt%. The selectivity toward... 

Reaction with phosphorus compounds. Hydrozirconation of vinyl(diphenyl)-phosphine at C-l is feasible, while ring cleavage of l-phenylphospha-3-cyclopentene to give homoallylic phosphines is observed. (l-Benzyl-3-pyrroline and dihydro-furan also undergo similar cleavage.)... 

By analogy with phosphorus compounds, name the following Na3As04, FI3ASO4, Mg3(Sb04)2. 

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