Al2(SO4)3এর অসীম লঘু দ্রবণে Al^(3+ ) ও SO4^(2-) -এর মোলার আয়নীয় পরিবাহিতা যথাক্রমে 189 ও 160ohm^(-1)cm^2mol^
摘要: 以固体Al2(SO4)3·XH2O为催化剂,在微波辐射下,以α-萘乙酸和甲醇为原料合成了α-萘乙酸甲酯.考察了催化剂的用量,微波功率,微波辐射时间,醇酸比对酯产率的影响.试验结果表明,最佳试验条件为:催化剂用量6%,微波功率600W,微波辐射时间28min,醇酸比12:1,酯产率72.45%.关键词:...
Sulfate de aluminium (3:2) [French] [ACD/IUPAC Name] Unverified 10043-01-3 [RN] 233-135-0 [EINECS] 259-881-7 [EINECS] 7784-31-8 [RN] 99.99% (metals basis) Al2(SO4)3 Al2(SO4)3alumaluminium sesquisulfatealuminium sulfate (2:3)aluminium sulfate (anh.)aluminium sulfate ...
al2(so4)3 what is aluminium sulphate (al 2 (so 4 ) 3 )? al 2 (so 4 ) 3 is a chemical compound with the chemical name aluminium sulphate. aluminium sulphate is also called filter alum or dialuminum trisulphate. it is a white crystalline solid in its anhydrous form and in its ...
A hybrid ion-association-interaction approach is implemented to describe the chemistry and thermodynamics of aqueous H2SO4-Al2(SO4)3-MgSO4 solutions at 250 掳C. These solutions are relevant to the sulfuric acid pressure leaching of nickeliferous laterites. Strong complexes in solution are handled...
nsted acid H_2SO_4 and Lewis acid Al_2(SO_4)_3 in methyl levulinate(ML) production from biomass carbohydrates, including glucose,fructose and cellulose. The product distributions with different catalysts revealed that the Lewis acid was responsible for the isomerization of methyl glucoside(...
The main problems of quantum chemistry of H-bonded ferroelectrics are treated using the zero-dimensional K3H(SO4)2-like crystals as suitable examples. Various quantum chemical approaches and computational procedures are applied to evaluate the Ising model coupling parameters that determine different ...
Voltaite of the composition [(K0.90(NH4)0.10]2(Fe3.1902+Fe1.1243+Mg1.686)(Fe0.9383+Mg0.062)2(Al0.98Fe0.023+)·(SO4)12·18.9H2O* is obtained by treating a polymetallic sample with sulfuric acid. The crystal structure of the substance is formed of (Fe3+,Mg)O6 and (Fe2+,Fe3+,Mg)O4(...
On the crystal chemistry of sulfur-rich lazurite, ideally Na7Ca(Al6Si6O24)(SO4)(S-3)(-)center dot nH(2)OMicroporous mineral structurelazuritesulfide radical ionX-ray diffractionspectroscopysuperstructureDark blue lazurite from the Malo-Bystrinskoe lazurite deposit, Baikal Lake area, Eastern ...
Introduction β-Lactones (systematic name 2-oxetanones), are attracting the interest of scientists for mainly two reasons: (1) a number of natural and synthetic β-lactones are known to act as specific enzyme inhibitors [1–4]. Tetrahydrolipstatin (Xenical®, orlistat), for instance, is ...