磷石膏是湿法生产磷酸排出的工业废渣,主要成分是CaSO4·2H2O。 ⑴CaSO4·2H2O脱水反应相关的热化学方程式为: CaSO4·2H2O(s)=CaSO4·H2O(s)+H2O(g) ΔH1=83.2 kJ·mol-1 CaSO4&
The thermal decomposition of polyhalite (K2SO4 · MgSO4 · 2 CaSO4 · 2H2O) was investigated by DSC/TG and X-ray powder diffraction. The decomposition of the polyhalite starts at 285 掳C in releasing the crystal water within one step. Simultaneously the decomposition of the polyhalite into ...
感难元称家团改出力还听太建筑石膏的分子式是()感难元称家团改出力还听太 A. CaSO4middot;2H2O B. CaSO4 C. CaS4middot;H2O D
ECaSO4·2H2O→CaSO4·1/2H2O 该题目是单项选择题,请记得只要选择1个答案!正确答案 点击免费查看答案 试题上传试题纠错题目解答分析 石膏类模型材料的凝固是半水硫酸钙转变为二水硫酸钙的过程。半水硫酸钙溶解度低,为0.9g/100ml,与水混合后转变为二水硫酸钙,二水硫酸钙的溶解度更低,为0.2g/100ml,很快形成过...
2、已知298.15 K时,反应CaS(s) + 2O2(g) + 2H2O(l) → CaSO4·2H2O(s)的标准摩尔反应热为-967.8 kJ·mol-1,H2O(l)的标准摩尔生成焓为-285.83 kJ·mol-1,CaSO4·2H2O(s)的标准摩尔生成焓为-2021.3 kJ·mol-1,则反应2H2O(l) → 2H2
Host–Guest Interactions in Bassanite, CaSO4·0.5 H2O 来自 Wiley 喜欢 0 阅读量: 31 作者:H Voigtländer,B Winkler,W Depmeier,K Knorr,L Ehm 摘要: Publication » Host–Guest Interactions in Bassanite, CaSO4·0.5 H2O....