What is chemical formula of Bauxite? - Chemistry Stack Exchange
2016年9月4日 · Bauxite is an ore of the mineral called Alumina( Al2O3) which can be used to extract aluminium. So bauxite is group of hydrated aluminum oxides, Al(OH)3 with possible …
Si (OH)4 vs. H4SiO4 vs. SiO2.2H2O - Chemistry Stack Exchange
2020年12月19日 · Adding to the confusion is that the compound is not really crystalline (like opal). And finally to confuse you even more, a ratio of 2-to-1 of water to silica isn't required, and it …
What is the meaning of the "dot" notation in chemical formulas?
2015年2月27日 · So, the dot here signifies ignorance of how the subunits of a formula are structurally related. The use of dots in phase diagrams. Let's take the example of the ternary …
inorganic chemistry - Use of cryolite and fluorspar in electrolytic ...
2019年7月8日 · Cryolite $\ce{(Na3AlF6)}$ and fluorspar $\ce{(CaF2)}$ are added to alumina to lower the temperature of the mixture from $\pu{2000 °C}$ to about $\pu{900 °C}$ and also to …
inorganic chemistry - What is the chemical formula for the …
2020年7月18日 · First, let me state the standard formula of hydroxyapaptite: The term "apatite" applies to a group of compounds with a general formula in the form $\ce{M10(XO4)6Z2}$, …
inorganic chemistry - Reaction between alumina and aqueous …
2016年10月7日 · My chemistry textbook has a rather annoying irregularity. It cites two different reactions for the same set of reactants (aluminium oxide, sodium hydroxide and water) without …
What does the formula (CH2O)106 (NH3)16H3PO4 represent?
2019年7月30日 · The molecular formula $\ce{(CH2O)106(NH3)16H3PO4}$ appears in the wikipedia entry for "anoxic bodies of water". A quick search suggests that it represents the …
stereochemistry - How to derive these general formulae for …
A formula for the number of meso isomers As you must have observed from the table, the sequence of optical configurations, when read from the fourth carbon atom, is exactly the …
What is Rinman's green used for? - Chemistry Stack Exchange
2020年2月5日 · The main use of Rinmann's green is analytical. It may be used to identify small amounts of zinc in a mixture. If a precipitate containing metal hydroxides and sulfides is burnt …
When is Serpeck's process preferred over Bayer's process?
2015年5月5日 · During extraction of Al from Bauxite containing more than 10% of silica as impurity, Baeyer's process will be uneconomical due to generation of insoluble sodium …