The crystal structure of ammonium nickel sulphate hexahydrate (NH4)2Ni(SO4)2. 6H2O. Crystals of ammonium nickel sulphate hexahydrate are monoclinic with space group P21/a. The unit cell of dimensions a=9.181, 5=12.459, c=6.239 /~, fl–106° 57′ contains two formula units.
The crystal structure of ammonium nickel sulphate hexahydrate (NH4)2Ni(SO4)2. 6H2O. Crystals of ammonium nickel sulphate hexahydrate are monoclinic with space group P21/a. The unit cell of dimensions a=9.181, 5=12.459, c=6.239 /~, fl–106° 57′ contains two formula units.
Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO4 and related hydrates. In the form of γ-anhydrite (the anhydrous form), it is used as a desiccant. One particular hydrate is better known as plaster of Paris, and another occurs naturally as the mineral gypsum.
The invention relates to a method for producing calcium chloride dihydrate, which is characterized by comprising the following steps: putting hydrochloric acid (31%) and limestone powder into a reaction vat according to the mixture ratio of 2.2:1, and stirring for reaction to generate an acid calcium chloride solution; …
Chemically, the compound is represented by the formula C6H12O6 and could be found in plants and animals in huge quantities. Its common isomers include the L-glucose and D-glucose even though the fructose (i.e. which is the keto-form) is a widely established isomeric compound.
EDTA, is a chelating agent with many applications in molecular biology. EDTA is often used in buffers as a metal ion inhibitor to maintain the stability and integrity of biological samples. EDTA binds to metal cations by forming a stable octahedral complex.
Sodium Carbonate, Anhydrous is a water insoluble Sodium source that can easily be converted to other Sodium compounds, such as the oxide by heating (calcination). Carbonate compounds also give off carbon dioxide when treated with dilute acids. Sodium Carbonate is generally immediately available in most volumes.
It is used in the manufacture of detergents, soaps, and paper. Also used in the manufacture of water glass (sodium silicate), borax, sodium phosphate, and many other sodium compounds.
The purpose of adding sodium thiosulfate is to remove the excess iodine from the reaction mixture. This is important because iodine is a strong oxidizing agent and can cause side reactions with the organic compounds in the mixture.
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