Decomposition of copper(II) sulfate pentahydrate: A sequential gravimetric analysis

Molten Chloride Thermophysical Properties, Chemical Optimization, and Purification

“…However, the off-white color after pre-drying-where the pre-drying temperature is likely not high enough to cause composition shift in terms of the content Mg, K, Na, and other minor salt components-proves that the color change is more correlated to change in salt's crystal structure due to removal of hydrates. Color change has been observed in the literature for salt hydrates during dehydration [57][58][59]. To our best knowledge, there is no This report is available at no cost from the National Renewable Energy Laboratory at www.nrel.gov/publications.…”

“…The crucible material available for the laser flash instrument is Pt-based which tends to allow salt to wet and creep outside the crucible causing experimental errors. 57 The large standard deviations in Figure 28(b) is a result of the large standard deviations of the thermal diffusivity (~10%) and heat capacity (~5%) following the error propagation calculation in Eq.…”

Calculation and optimization of the copper (II) sulphate monohydrate from copper (II) sulphate pentahydrate production process in a fluidized bed dryer

“…Mehanizam dehidratacije bakar(II)-sulfat-pentahidrata predmet je brojnih studija u proteklih osamdesetak godina [1][2][3][4]. Rezultati ukazuju da ovaj materijal ima neka jedinstvena termička svojstva.…”

“…Kristali CuSO 4 •5H 2 O ispoljavaju i tzv. Smith-Topley efekat po kome proces dehidratacije zavisi od napona vodene pare [1][2][3][4].…”

“…Na oko 70 °C proizvod zagrevanja CuSO 4 •5H 2 O je trihidrat, CuSO 4 •3H 2 O. U ovom kristalohidratu, atomi kiseonika iz tri molekula vode i atom kiseonika iz sulfat-jona obrazuju deformisan kvadrat u kome su veze Cu(II) i atoma kiseonika iz molekula vode nešto kraće (0,196 nm). Daljim zagrevanjem, moguće je izvršiti potpunu dehidrataciju i dobiti anhidrovanu so, CuSO 4 , kod koje je Cu(II) vezan za atome kiseonika iz sulfat-jona [1][2][3][4].…”