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  2. Transition metal chloride complex - Wikipedia

    en.wikipedia.org/wiki/Transition_metal_chloride...

    Several hydrated metal chlorides are not molecular and thus are not included in this tabulation. For example the dihydrates of manganese(II) chloride, nickel(II) chloride, copper(II) chloride, iron(II) chloride, and cobalt(II) chloride are coordination polymers.

  3. Chemical garden - Wikipedia

    en.wikipedia.org/wiki/Chemical_garden

    If one uses a metal salt that produces a very dense fluid inside the membrane, the growth is downward. For example, a green solution of trivalent chromium sulfate or chloride refuses to crystallize without slowly changing into the violet form [clarification needed], even if boiled until it concentrates into a tarry mass. That tar, if suspended ...

  4. Human services - Wikipedia

    en.wikipedia.org/wiki/Human_services

    Human services is an interdisciplinary field of study with the objective of meeting human needs through an applied knowledge base, focusing on prevention as well as remediation of problems, and maintaining a commitment to improving the overall quality of life of service populations [1] The process involves the study of social technologies (practice methods, models, and theories), service ...

  5. Metal halides - Wikipedia

    en.wikipedia.org/wiki/Metal_halides

    The halogens can all react with metals to form metal halides according to the following equation: 2M + nX 2 → 2MX n. where M is the metal, X is the halogen, and MX n is the metal halide. Sample of silver chloride. In practice, this type of reaction may be very exothermic, hence impractical as a preparative technique.

  6. Metal cluster compound - Wikipedia

    en.wikipedia.org/wiki/Metal_cluster_compound

    Many metal carbonyl clusters contain ligands aside from CO. For example, the CO ligand can be replaced with myriad alternatives such as phosphines, isocyanides, alkenes, hydride, etc. Some carbonyl clusters contain two or more metals. Others contain carbon vertices. One example is the methylidyne-tricobalt cluster [Co 3 (CH)(CO) 9]. [3]

  7. Molten-salt battery - Wikipedia

    en.wikipedia.org/wiki/Molten-salt_battery

    Sodium metal chloride batteries are very safe; a thermal runaway can be activated only by piercing the battery and also, in this unlikely event, no fire or explosion will be generated. For this reason and also for the possibility to be installed outdoor without cooling systems, make the sodium metal chloride batteries very suitable for the ...

  8. Metallurgy - Wikipedia

    en.wikipedia.org/wiki/Metallurgy

    Metallurgy derives from the Ancient Greek μεταλλουργός, metallourgós, "worker in metal", from μέταλλον, métallon, "mine, metal" + ἔργον, érgon, "work" The word was originally an alchemist's term for the extraction of metals from minerals, the ending -urgy signifying a process, especially manufacturing: it was discussed in this sense in the 1797 Encyclopædia ...

  9. Alkali metal halide - Wikipedia

    en.wikipedia.org/wiki/Alkali_metal_halide

    Alkali metal halides, or alkali halides, are the family of inorganic compounds with the chemical formula MX, where M is an alkali metal and X is a halogen. These compounds are the often commercially significant sources of these metals and halides. The best known of these compounds is sodium chloride, table salt. [1]