Buscar
Mostrando ítems 1-10 de 12807
Thermal and structural analysis of the reaction pathways of α-spodumene with NH4HF2
(Elsevier Science, 2020-07)
In this work, the thermal and microstructural analysis of the reaction pathways of α-spodumene with NH4HF2 at low temperatures is presented. The thermal behavior of NH4HF2, mixtures α-LiAlSi2O6/NH4HF2 and by-products ...
An exploratory ab initio study on the conformations of ethylguanidine in its neutral [CH3-CH2-NH-C(=NH)NH2] and protonated [CH3-CH2-NH-C(NH2)2] forms
(National Research Council Canada-NRC Research Press, 2000-05)
To explore the conformation intricacies of the guanidine group in the arginine side chain, ab initio computations have been carried out with ethylguanidine and the ethyl guanidinium ion. HF computations have been performed ...
Polyfullerene Thin Films Applied as NH3 Sensors
(2021-01-01)
Fullerene is considered to be the third carbon allotrope after diamond and graphite. The study of fullerene derivatives has been growing due to their exceptional electron affinity. This work proposes th study of three ...
Accompanying ions of ammonium sources and nitrate : ammonium ratios in tomato plants
(2018-06-01)
The tomato (Solanum lycopersicum L.) cultivar Micro-Tom (MT) is widely used in physiological studies, but the effects of nitrate (NO3 -) and ammonium (NH4 +) ratios (NO3 - : NH4 + ratios) and, in particular, the effects ...
PHASE-TRANSITION IN METAL HEXAMMINE COMPLEXES .2. EPR-SPECTRA OF NI(NO3)26NH3 AND NI++ DOPED ZN(NO3)26NH3 AND CD(NO3)26NH3
(Amer Inst PhysicsWoodbury, 1975)
Silicon alleviates ammonium toxicity in cauliflower and in broccoli
(2017-11-18)
Plant growth may be higher with a nitrate (NO3 −) and ammonium (NH4 +) ratio (N-A ratio), in relation to a particular form of N. However, the NH4 + can be toxic. In order to alleviate NH4 + toxicity in plants, silicon (Si) ...