Results 31 to 40 of about 9,697 (144)
Poly[butane-1,4-diammonium [tri-μ-oxalato-dimanganese(II)] hexahydrate]
IUCrData, 2016 In the title coordination polymer, {(C4H14N2)[Mn2(C2O4)3]·6H2O}n, the MnII ions are octahedrally coordinated by the oxalate ligands to form a two-dimensional honeycomb-like network.
Masaaki Sadakiyo +2 more
doaj +1 more source
Poly[dimethylammonium [aquadi-μ2-oxalato-samarate(III)] trihydrate]
Acta Crystallographica Section E, 2011 In the title complex, {(C2H8N)[Sm(C2O4)2(H2O)]·3H2O}n, the SmIII atom is chelated by four oxalate ligands and one water molecule forming a distorted tricapped trigonal–prismatic geometry. Each oxalate ligand chelates to two SmIII atoms,
Yao-Kang Lv +3 more
doaj +1 more source
Molecules, 2023 Ammonium N-(pyridin-2-ylmethyl)oxamate (AmPicOxam), synthesized from O-methyl-N-(pyridin-2-ylmethyl)oxamate, was spectroscopically and structurally characterized and assayed as a novel precursor for the protection and consolidation of carbonate stone ...
Anna Pintus +14 more
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Crystallurical profile in sheep after ammonium chloride supplementation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2022 Although urinary crystals are habitual components, urolithiasis formation is always preceded by these concretions. We aimed to identify the change in the crystalline profile in sheep supplemented with ammonium chloride.
F.C. Navarro +5 more
doaj +1 more source
Poly[dimethylammonium [aquadi-μ2-oxalato-yttriate(III)] trihydrate]
Acta Crystallographica Section E, 2011 The title complex, {(C2H8N)[Y(C2O4)2(H2O)]·3H2O}n, was obtained accidentally under hydrothermal conditions. The YIII atom is chelated by four oxalate ligands and one water molecule resulting in a distorted tricapped trigonal–prismatic ...
Yao-Kang Lv +4 more
doaj +1 more source
Degree of phosphorus saturation threshold for minimizing P losses by runoff in cropland soils of Southern Brazil [PDF]
Pesquisa Agropecuária Brasileira, 2016 The objective of this work was to assess the risk of phosphorus losses by runoff through an index based on the degree of P saturation (DPS), in cropland soils of Southern Brazil.
Leandro Bortolon +6 more
doaj +1 more source
Crystal structure of dimethylammonium hydrogen oxalate hemi(oxalic acid) [PDF]
Acta Crystallographica Section E Crystallographic Communications, 2015 Single crystals of the title salt, Me2NH2+·HC2O4−·0.5H2C2O4, were isolated as a side product from the reaction involving Me2NH, H2C2O4and Sn(n-Bu)3Cl in a 1:2 ratio in methanol or by the reaction of the (Me2NH2)2C2O4salt and Sn(CH3)3Cl in a 2:1 ratio in ethanol. The asymmetric unit comprises a dimethylammonium cation (Me2NH2+), an hydrogenoxalate anion
Waly Diallo +4 more
openaire +3 more sources
Yankuang ceshi, 2016 Direct determination of trace silver in all kinds of geological samples by Graphite Furnace Atomic Absorption Spectrometry has been widely reported. In all of them, the samples were dissolved by acids.
XU Guo-dong +4 more
doaj +1 more source
Revista de la Facultad de Ciencias, 2018 The selective and sequential extraction of the fractions of Al, Fe and Si (potassium chloride, sodium pyrophosphate, ammonium acid oxalate, dithionite-citrate-bicarbonate and sodium hydroxide) of a Andisol of the East of Antioquia was studied for genetic
Nicolás Pérez Echavarría +3 more
doaj +1 more source
Urinary Stone Analysis of 1,000 Patients in Southern Taiwan
Kaohsiung Journal of Medical Sciences, 2007 Urolithiasis is a common urologic disease. Stones may occur in the kidney, ureter, or urinary bladder. We collected 1,000 stone samples in the subtropical area of southern Taiwan. Stone components were analyzed by Fourier transform infrared spectroscopy.
Yii-Her Chou +9 more
doaj +1 more source