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Poor lime is also known as lean or meager lime. Poor lime sets and cures very slowly and has weak bonding. Poor lime is grey in color. Magnesium lime contains more than 5% magnesium oxide (BS 6100) or 5-35% magnesium carbonate (ASTM C 59-91). [15] Dolomitic lime has a high magnesium content of 35-46% magnesium carbonate (ASTM C 59-91). [15]
Proposed name for berkelium. The symbol and name were later used for element 101. [nb 1] [nb 3] Ml: Moldavium: 87: Discredited claim to discovery of francium made by Horia Hulubei and Yvette Cauchois. [nb 2] [7] Ms: Magnesium: 12: Current symbol is Mg. [nb 1] Ms: Masrium: 88: Discredited claim to discovery of radium. [nb 2] Ms: Masurium: 43 ...
This is a list of common chemical compounds with chemical formulae and CAS numbers, ... magnesium diboride: 12007-25-9 B 2 H 2 Se 3: ... spent lime calcite limestone ...
118 chemical elements have been identified and named officially by IUPAC.A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
Ruthenium is from the Latin name for the region including Belarus, Ukraine, and Russia. [29] Lutetium is named after Lutetia, the Latin name for Paris. Copper's name comes from an Old English word derived from the Latin name for the island of Cyprus. [30] The names of both magnesium and manganese derive from the Greek region of Magnesia. [31]
The name magnesium originates from the Greek word for locations related to the tribe of the Magnetes, either a district in Thessaly called Magnesia [52] or Magnesia ad Sipylum, now in Turkey. [53] It is related to magnetite and manganese, which also originated from this area, and required differentiation as separate substances.
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Calcined gypsum is an alternative material in industrial plasters and mortars. Cement, cement kiln dust, fly ash, and lime kiln dust are potential substitutes for some construction uses of lime. Magnesium hydroxide is a substitute for lime in pH control, and magnesium oxide is a substitute for dolomitic lime as a flux in steelmaking. [28]