The paper deals with a study of interactions of protons in crystallization water of paramagnetic hydrates FeSO4.n H2O (wheren=1, 4, 5 and 7). The interaction of protons and paramagnetic ions Fe2+ and the nuclear dipole-dipole interaction of protons have been studied by means of the ...
The number of water molecules present in every formula unit of the ionic compound determines the water of crystallization or water of hydration of the salt. The value of the water of crystallization varies from one salt to another. ...
FeSO4·7H2O ≥98% Fe, % ≥19% As% ≤0.0004 Pb% ≤0.002 Cd, % ≤0.0005 Product performance: Ferrous sulphate heptahydrate Glaucous crystallization. The relative density 1.897, melting point ºC into four 64 when water and salt, salt water into ºC when 65. I...
Influence of impurities on ammonium dihydrogen phosphate crystallization process J. Sichuan Univ., 42 (2010), pp. 98-101 View in ScopusGoogle Scholar [18] X.Y. Yang, S.B. Fang Practices, perceptions, and implications of fertilizer use in East-Central China Ambio, 44 (2015), pp. 647-652...
3. The modified MOC composites have good water resistance and compressive strength. 4. The effect of the SHP/SP synergistic system on the crystallization of hydration MOC COMPOSITES was investigated. 5. MOC composites have excellent wet shearing strength and can be used in the wood industry. ...
(III) are minor and present as FeSO4+, Fe(SO4)2−, and FeHSO42+. Under circumneutral pH in the study area, hydroxide species such as Fe(OH)2+and Fe(OH)4−are dominant. Mn is present either as free aqueous ions or as sulfate and bicarbonate species. Saturation indices show that...
crystallization waterTG-DTG-DTAkineticsThe nature of the crystallization water in some hydrates with different cations, namely: MnSO4·H2O; FeSO4·7H2O; CoSO4·7H2O; NiSO4·7H2O, has been studied by the application of the following non-isothermal techniques: thermogravimetry (TG), derivative ...
Was subjected to hydrolysis by adding ammonia, after 20 minutes the solution was warmed to maintain 80 ℃ crystallization using an applied magnetic field separated Fe3O4 magnetic nanoparticles obtained by the reaction. 将制得的Fe3O4纳米颗粒用去离子水稀释,用氨水调节pH=8,加入AgNO3,搅拌均匀,加入没...
Solar energy is the most sustainable alternative to fossil fuels. The production of solar thermochemical fuels from water/carbon dioxide not only overcomes
Membrane distillation was used to produce demineralized water from ground water. The influence of feed water pretreatment carried out in a contact clarifier (softening with Ca(OH)2 and coagulation with FeSO4 · 7H2O) followed by filtration, on the proces