Oxidation nitrilotriacetic acid

Ammonium carbonate Citric acid Methyl vinyl ether/maleic acid copolymer Nitrilotriacetic acid Oxidized cellulose PEG-2 cocomonium chloride Sodium disilicate Sodium metaphosphate Sodium sesquicarbonate Sodium silicoaluminate Tetrapotassium pyrophosphate Tetrasodium EDTA Zeolite Zeolite synthetic detergent builder, household cleaners Potassium silicate detergent builder, laundry powders Sodium sulfate... 

Nitric acid, 98 Nitric oxide, 98 Nitrilotriacetic acid, 98 p-Nitroaiiiline, 99 Nitrobenzene, 99 Nitrocarbono SA, 146 Nitrocellulose, 99 p-Nitrochlorobenzene, 99 Nitroethane, 99 Nitrofen, 99 Nitrogen, 99 Nitrogen dioxide, 99 Nitrogen oxides, 99 Nitrogen trifluoride, 99 Nitroglycerin, 100 Nitrokemia 200 Rt., 167 Nitromethane, 100 5-Nitro-o-anisidine, 99 5-Nitro-o-toluidine, 100 Nitrophenols, 100... 

Chromiain(ii) Complexes.—The oxidation of chromium(ii) in alkaline solution has been studied polarographically and the reaction shown to be irreversible with = — 1.65 V vs. S.C.E. In the presence of nitrilotriacetic acid, salicylate, ethylenediamine, and edta the values were determined as —1.075, —1.33, — 1.38, and —1.48 V, respectively. The production of [Cr(edta)NO] from [Cr (edta)H20] and NO, NOJ, or NO2 suggests that this complex is able to react via an inner-sphere mechanism in its redox reactions. ... 

Toste AP. Gamma-ray-induced destruction of nitrilotriacetic acid in a simulated, mixed nuclear waste radiolytic and chemical forces. J AOTs Adv Oxid Technol 1998 3 70-78. 

Here, the specific and strong chelating interaction between 6 x Histidine and the tetradentate nitrilotriacetic acid (NTA) mediated by Ni2+ [43] was used for the immobilization of a reconstituted LHCII mutant, whose c-terminus was extended by 6 x Histidine residues via genetic engineering (cf. Fig. 13(A)). NTA terminated thiols and OEG (spacer) thiols were used to built up a mixed SAM (X = 0.4) on a substrate coated by 23 nm silver and 5 nm Au (the gold layer was used to protect the silver film from being oxidized). 

The sodium salt may be obtained by adding a dilute NaOH solution to attain pH 5.0. One of the main precautions is that the synthesis be done with dilute solutions. For example nitrilotriacetic acid (NTA) complexes have been synthesized using 0.02 M solutions and at higher dilutions in the case of heavy lanthanides [37]. Use of an excess of lanthanide oxide should be avoided since reactions of the following type may take place [38]... 

Removal of lead from water is performed generally by precipitation as carbonate or hydroxide with or without coagulation. Chelation with EDTA, nitrilotriacetic acid, or other agents is another usual treatment followed by recovery using precipitation, electrolysis, or chemical oxidation (Borrell-Damian and Ollis, 1999). However, most of these treatments are expensive, and some other ways of lead elimination from wastewater are necessary to be developed. 

Iron Oxides. Chelated iron oxide, using nitrilotriacetic acid [139-13-9] and EDTA, has been studied as an alternative oxygen source (35). Iron oxide which is often difficult for the microbes to access, is made more available by chelating agents. 

Nicotinamide, nitrilotriacetic acid, EDTA, quinaldinic acid, imidazole, sulfanilamide, diamox, and zincon did not inhibit the oxidation of alcohol significantly in concentrations of 5 X 10 M, 0° C., 1 hour preincubation, pH 6.0 to 9.5. 

Nitrilotriacetate. Nitrilotriacetic acid (NTA) is a triprotic weak acid which is a well known sequestering agent. It forms a quadradentate chelate with Ni of the form Ni-NTA which is very stable (log K = 13.1). If sufficient NTA is added to solution, virtually complete ( 100%) chelation of Ni takes place in the neutral and alkaline pH range. Results of the nickel-NTA-oxide systems are shown in Figures 8 and 9 for silica and goethite, respectively. 

The eluate fractions are brought to a boil and the rare earths precipitated with oxalic acid. The mixtures are allowed to stand for 20 minutes at 80°C and filtered hot, and the solids are calcined to the oxides. The first fractions, which may contain minute quantities of Zn, are reprecipitated. More than 70% of the nitrilotriacetic acid used in the process can be recovered from the eluate by precipitation with HCl. 

Recently, a class of alkaline salts called sequestrants has come into general use for water treatment to prevent scale formation and for periodic removal of both water scale and corrosion products. The most useful examples are derived from an organic acid called ethylenediaminetetraacetic acid (EDTA). The sodium salt dissolves water hardness scale, while the ammonium salt is now being used to remove iron oxides and copper from high pressure steam generators. A related compound is nitrilotriacetic acid (NTA). The sodium salt is used in boiler water treatment. 

They also studied the separation of rare earths in phosphor wastes by chelating resins. The leaching was done in two steps (i) selective leaching with 1.5 kmol/m sulfuric acid in order to obtain (Y, Eu) fraction and (ii) leaching of its residue with 18 kmol/m sulfuric acid in order to obtain (La, Ce, Tb) fraction. For the mutual separation of the rare earths, the iminodiacetic acid and nitrilotriacetic acid-type resins were used for the (Y, Eu) and (La, Ce, Tb) fractions, respectively. After oxalate precipitation and calcination, each rare-earth oxides were obtained with the yields and purities, respectively, of 50% and 99.8% (Y), 50% and 98.3% (Eu), 30% and 96.0% (La), 30% and 87.3% (Ce), and 90% and 91.8% (Tb) (Takahashi et al., 1996). They applied solvent extraction with PC-88A to achieve mutual separation between yttrium and europium from (Y, Eu) fraction obtained by the selective leaching with 1.5kmol/m sulfuric acid. Mutual separation was achieved by the... 

NickelOI), 32-36, 83 Nickel carbonate, 83 Nickel hydroxide, 83 Nickel oxide, 83 Nickel sulfate, 85 Nickel sulfide, 83 Nitric acid, 21, 29, 39 Nitrilotriacetic acid, 83, 95, 106 Nitrobenzene, 326... 

Ammonium Nitrate 2-Nitroaniline 4-Nitroaniline Nitric Acid Aluminum Nitrate Ferric Nitrate Lead Nitrate Nitric Oxide Nitrilotriacetic Acid and Salts... 

Ag(in)(H3l06)(H20)2] is the reactive silver(III) species involved in the diper-iodatoargentate(in) oxidation of nitrilotriacetic acid (NTA) in a mildly basic medium to produce formaldehyde and ammonia. NTA binds to the silver(III) complex in an axial fashion and two electrons are transferred from bound NTA to the silver(III) centre sequentially. The latter stages of the reaction consist of a composite process involving the oxidation of NTA and its products in parallel reactions. ... 

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