Magnesium Mercury

Acetylenic compounds with replaceable acetylenically bound hydrogen atoms must be kept out of contact with copper, silver, magnesium, mercury or alloys containing them, to avoid formation of explosive metal acetylides. 

Lithium forms alloys with several metals including aluminum, calcium, copper, magnesium, mercury, sodium, potassium, silver, tin and zinc. 

AAS is used in a number of limit tests for metallic impurities, e.g. magnesium and strontium in calcium acetate palladium in carbenicillin sodium and lead in bismuth subgallate. It is also used to assay metals in a number of other preparations zinc in zinc insulin suspension and tetracosactrin zinc injection copper and iron in ascorbic acid zinc in acetylcysteine lead in bismuthsubcarbonate silver in cisplatinum lead in oxyprenolol aluminium in albumin solution and calcium, magnesium, mercury and zinc in water used for diluting haemodialysis solutions. 

The metallocene complexes are only used in catalytic amounts and may be recovered from the reaction mixture. Bis() 5-cyclopentadienyl)zirconium(TV) chloride (Cp2ZrCI2) and fluoride (Cp2ZrF2) in the presence of magnesium/mercury(II) chloride are equally effective. 

The Earth s crust is composed of a vast number of different compounds containing both metal and nonmetal elements called ores aluminum, antimony, arsenic, barium, beryllium, bismuth, calcium, cadmium, chromium (VI), cobalt, copper, iron, manganese, magnesium, mercury, lithium, osmium, potassium, silver, thorium, tin, uranium, vanadium, and zinc. 

Organometallic compounds of magnesium, mercury, or lithium have been treated with iodine or bromine to form organic halides. The method has been successful for obtaining neopentyl iodide where other methods have failed (92%). It has been found convenient in the synthesis of 9-iodoanthracene (53%) and certain heterocyclic halides. ... 

Hg2Mg (s) MgHg2 (s) Magnesium Mercury Hg2Mg (s) MgHg2 (s)... 

The preparation and electrical properties of magnesium mercury, MgjHgj, have been reported. The intermetallic compound was prepared by heating the elements together above 562 °C, at which temperature the compound melts, in an evacuated silica tube. Electrical resistivity and Hall-effect measurements were made from 2.4 to 297 K. No phase transition was observed over this range. The Hall constant was low and the ideal resistivity (the difference between total and residual resistivity) had the form p a T , where a = 1.9 and 1.0 at 11.50K and... 

BUTEN-3-YNE (689-97-4) Flammable gas (flash point <23°F/<—5°C). Unless inhibited, forms unstable peroxides with atmospheric oxygen or air. Heat, sunlight, oxygen, 1,3-butadiene, peroxides, oxidizers can cause explosive decomposition or polymerization. Forms sensitive and highly unstable metal acetylides with silver, cobalt, copper, magnesium, mercury, and their alloys. 

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