Ammonium fluorophosphate

Si 4H CP/MAS-NMR, 27A1 and 23Na MQ/MAS-NMR studies have been made of amorphous aluminium silicates, to determine local atomic struc-tures. A1 MAS-NMR (together with some other nuclei) studies have been carried out on novel porous sodium aluminophosphate-silicate and sodium ammonium fluorophosphates silicate 340 an ordered hexagonal mesoporous silica material (JLU-30) 341 mesoporous Al-MSU-X aluminosilicate 342 cubic mesoporous aluminosilicate A1MB48 343 and mesoporous Al-SBA-15.344... 

Phosphoms oxyfluoride is a colorless gas which is susceptible to hydrolysis. It can be formed by the reaction of PF with water, and it can undergo further hydrolysis to form a mixture of fluorophosphoric acids. It reacts with HF to form PF. It can be prepared by fluorination of phosphoms oxytrichloride using HF, AsF, or SbF. It can also be prepared by the reaction of calcium phosphate and ammonium fluoride (40), by the oxidization of PF with NO2CI (41) and NOCl (42) in the presence of ozone (43) by the thermal decomposition of strontium fluorophosphate hydrate (44) by thermal decomposition of CaPO F 2H20 (45) and reaction of SiF and P2O5 (46). 

Other chemicals which inhibit milk lipase include hydrogen peroxide, animal cephalin, sodium arsenite, diisopropyl fluorophosphate, 2,4 din-itro-l-fluorobenzene, p-hydroxymercuribenzoate, potassium dichromate, lauryl dimethyl benzyl ammonium chloride, aureomycin, penicillin, streptomycin, and terramycin (Schwartz 1974). 

FP03(NH4)2 Ammonium mono-fluorophosphate, 2 155 FP03Na2 Sodium monofluorophos-phate, 3 106, 108 F2Ag Silver(II) fluoride, 8 176 F2Ca Calcium fluoride, 4 137 F2Hg Mercury (II) fluoride, 4 136 F2KH Potassium hydrogen fluoride, 1 140... 

Alkali metal fluorides and ammonium bifluorides, fluoroborates, fluorophosphates, fluoroarsenates, fluoroantimonates, fluorotitanates, fluorozirconates, etc. require either anhydrous HF or aqueous HF for their preparations. Similarly, alkaline earth metals, transition metals, rare earth metal fluorides or their fluorosalts require... 

The phosphonitrilic fluorides do not result from the interaction of ammonium fluoride with phosphorus pentachloride ammonium hexa-fluorophosphate is formed instead (47). They may be prepared indi-j ectly by the reaction of potassium fluorosulfite with the chlorides at 100°-120° (75),... 

The corresponding ammonium tetrafluoroborate, like ammonium hexa-fluorophosphate, is stable to heat, and does not give the B-trifluoro-borazole. 

P03F(NH4)2 Ammonium mono- fluorophosphate, 2 155 P03FNa2 Sodium monofluorophos-phate, 3 106, 108 P03H3 Phosphorous acid, 4 55 P03NH2(C2H6)2 Diethyl mono-amidophosphate, 4 77 (P03Na)j Sodium polymetaphosphate, 3 104... 

FPO3K2 Potassium monofluoro-phosphate, 3 109 FPOs(NH4)2 Ammonium mono-fluorophosphate, 2 155... 

The V8 protease of Staphylococcus aureus (MW 12 kd) is active at a pH between 3.5 and 9.5 and develops maximal activity at pH 4.0 and 7.8. At pH 4.0, the protease partially precipitates. In phosphate buffer, V8 protease cleaves peptide bindings on the carboxyl terminal side of aspartate or glutamate residues. In 50 mM ammonium bicarbonate buffer pH 7.8 or ammonium acetate buffer pH 4.0, on the other hand, the enzyme cleaves only behind glutamate residues. Below 40° C, the protease does not exhibit any self-digestion. Its watery solution can be frozen and thawed without activity loss. Divalent cations or EDTA have no effect on the enzyme activity. The enzyme also still works in 0.5% SDS. Diisopropyl fluorophosphate inhibits V8 protease. 

Phosphorodithioic acid, mixed 0,0-bis (isobutyl and pentyl) esters, zinc salt. See Zinc dialkyl dithiophosphate Phosphorofluoridic acid, calcium salt. See Calcium monofluorophosphate Phosphorofluoridic acid, disodium salt. See Sodium fluorophosphate (Na2P03p) Phosphorofluoridic acid, monoammonium salt. See Ammonium monofluorophosphate Phosphorofluoridic acid, potassium salt. See Potassium monofluorophosphate Phosphorothioic acid. See Diazinon Phosphorothioic acid, S-((6-chloro-2-oxooxazxolo(4,5-b) pyridin-3(2H)-yl)methyl) 0,0-dimethyl ester. See Azamethiphos, Phosphorothioic acid, 0-(2,5-dichloro-4-iodophenyl) 0,0-dimethyl ester. See lodofenphos... 

Sodium fluorophosphate (Na2POsF) 233-439-3 Acid red 97 233-466-0 Irganox E 201 DL-a-Tocopherol Vitamin E USP, FCC 233-469-7 Ammonium bisulfite 233-471-8 Flamtard Z10 Flamtard Z15 Zinc borate 233-480-7... 

Ionic liquids (ILs) with their outstanding solvent properties, that is, high conductivity, tunable polarity, zero volatility, and high thermal stability, are of growing interest in different fields of application including as a solvent component in microemulsions [6,7]. Thus, the tunable polar properties are of special interest. Therefore, ILs can be used as polar [8-11] as well as nonpolar solvents [12,13], Moreover, ILs can show amphiphilic behavior [14] and are called IL sirnfactants [15], Their physical properties can be adjusted in a characteristic way by varying the molecular structure of ILs. Since the ILs are sterically mismatched ions, they hinder crystal formation. Different cations, for example, ammonium, phosphonium, sulfonium, imidazolium, pyridinium, or pyrrolidinium, with different anions, for example, chloride, bromide, iodide, fluoroborate, or fluorophosphates, can be selected for a broad range of combinations [6]. 

The influence of the anion type on the thermal stability of the imidazolium ILs has been studied by Awad et al. [32]. TTiey have demonstrated that for the hexa-fluorophosphate PF, tetrafluoroborate BF , and bis(trifluoromethylsulfonyl)amide [(CF3SOj)JN, increase of 100 C in the degradation temperature was obtained compared to the use of the halide salts (bromide and chloride). For nanoclays modified with imidazolium salts as surfactants, the works reported in the literature demonstrate a large increase of degradation temperature under nitrogen and oxidative atmosphere compared to ammonium-treated MMT. However, despite the intrinsic stability of imidazolium ILs induced by the substitution of halide anions by fluorinated ones, no significant improvement in the thermal stability of the MMT treated by ILs having tetrafluoroborate or hexafluorophosphate anions has been reported. 

Animals. Flavin et al. (llla-113) have recently observed the presence of a succinate-propionate system in animal tissues. Rat liver extracts and ammonium sulfate fractions of pig heart were found to fix C K)2 in the presence of propionate, ATP, CoA, and Mg++. Propionyl-CoA could replace CoA + propionate but the presence of ATP was still required. Evidence for CO2 activation by ATP has now been obtained, since in the presence of fluoride a CO -dependent formation of fluorophosphate is observed (112). The primary CO fixation product has been identified as methylmalonyl-CoA (llla,113). The mechanism of the rearrangement of this product to succinyl-CoA is unknown. Reactions (41 to 43) are... 

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