New reaction of the sodium salt of 2-nitroethanol. X-ray analysis of the sodium salt of 2-oxo-3-hydroxypropionic acid oxime, 2-bromo-2-nitropropane-1,3-diol, and the model 2,2-dinitropropane-1,3-diol

1996 ◽  
Vol 45 (5) ◽  
pp. 1157-1161 ◽  
Author(s):  
B. S. Fedorov ◽  
N. L. Gotovina ◽  
V. V. Arakcheeva ◽  
R. F. Trofimova ◽  
L. O. Atovmyan
Keyword(s):  
Sodium Salt ◽  
X Ray ◽  
Hydroxypropionic Acid

Adsorption of Hydrophobically Modified Poly(acrylic acid) Sodium Salt at the Air/Water Interface by Combined Surface Tension and X-ray Reflectivity Measurements

Langmuir ◽  
1999 ◽  
Vol 15 (6) ◽  
pp. 2112-2119 ◽  
Author(s):  
Frédéric Millet ◽  
Michael Nedyalkov ◽  
Benjamin Renard ◽  
Patrick Perrin ◽  
Françoise Lafuma ◽  
...  
Keyword(s):  
Surface Tension ◽  
Acrylic Acid ◽  
Sodium Salt ◽  
Water Interface ◽  
X Ray ◽  
Hydrophobically Modified ◽  
Acid Sodium Salt ◽  
Air Water Interface ◽  
Poly Acrylic Acid

Base mediated dimerization of 2-tetradecynoic acid

1983 ◽  
Vol 61 (11) ◽  
pp. 2449-2454 ◽  
Author(s):  
Suzanne R. Abrams ◽  
J. Wilson Quail ◽  
Louis T. J. Delbaere
Keyword(s):  
Sodium Salt ◽  
Michael Addition ◽  
Dimethyl Ester ◽  
Crystallographic Analysis ◽  
Strong Base ◽  
X Ray ◽  
Crude Product ◽  
Monomethyl Ester

Under the influence of the very strong base, the sodium salt of 1,2-diaminoethane in 1,2-diaminoethane, 2-tetradecynoic acid is converted to 3-tetradecynoic acid (35%) and a novel dimer 3. Compound 3 ((Z)-2-(1-dodecynyl)-3-undecyl-pent-2-en-1,5-dioic diacid) is isolated as the monomethyl ester 1 after treatment of the crude product with methanolic HCl. The structures of 1 and 3 are deduced from an X-ray crystallographic analysis of the dimethyl ester 2 obtained by reaction of 1 with diazomethane. The dimer 3 is thought to arise from Michael addition of the dianion 4 of 3-tetradecynoic acid with the sodium salt of 2-tetradecynoic acid.

Spectra of sodium and potassium azide crystals coloured by ultra-violet and X -ray radiation

1959 ◽  
Vol 251 (1264) ◽  
pp. 27-40 ◽  
Keyword(s):  
Sodium Salt ◽  
Ultra Violet ◽  
Liquid Nitrogen Temperature ◽  
Mechanism Of Formation ◽  
Potassium Salts ◽  
Absorption Bands ◽  
X Ray ◽  
Rate Of Increase ◽  
Potassium Azide ◽  
Sodium And Potassium

The spectra of sodium and potassium azide crystals that had been coloured by irradiation with both ultra-violet and X-ray radiation for varying periods at liquid-nitrogen temperature have been recorded. From these results and from measurements of the rate of increase of intensity of the various absorption bands with time, together with the changes observed on raising the temperature, the nature and mechanism of formation of some of the centres are deduced. The different behaviour of the sodium and potassium salts under irradiation and the different effects produced by the two types of irradiation, particularly with the sodium salt, are discussed.

Studies on EDTA Recycling via Formation of EDTA Iron(III) Sodium Salt

2011 ◽  
Vol 396-398 ◽  
pp. 1707-1710
Author(s):  
Li Wang ◽  
Di Weng ◽  
Jun Bo Wang ◽  
Xue Song Chen ◽  
Xiao Lu Xu
Keyword(s):  
Sodium Salt ◽  
Inductively Coupled Plasma ◽  
Transformation Product ◽  
Commercial Application ◽  
Separation And Purification ◽  
Paper Recycling ◽  
X Ray ◽  
Inductively Coupled ◽  
Edta Solution ◽  
Infrared Spectrophotometer

So far the absorption of NO by FeIIEDTA solution has not been put into commercial application due to its high cost. In this paper recycling EDTA via formation of EDTA iron (III) sodium salt was presented for the purpose of offering a new pathway to solve this issue. The invalid solution was fully oxidized after NO absorption by FeIIEDTA solution. Ion chromatogram were used to detect the remained ions in solution. It was found that the original ions such as SO32-, NO2- and so on were all oxidized to SO42- and NO3-. Solubility measurement was carried out and it was revealed that the separation and purification could be performed by decreasing the temperature to 306 K. Fourier transformation infrared spectrophotometer (FTIR) and X-ray diffractometer (XRD) were applied to determine the transformation product of EDTA. The results indicated that FeNaEDTA was formed. Inductively coupled plasma and atomic absorption spectroscopy (ICP-AAS) demonstrated that the practical solubility of FeNaEDTA reached 78.7% at pH 7.

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