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  2. Thallium - Wikipedia

    en.wikipedia.org/wiki/Thallium

    Soluble thallium salts are added to gold plating baths to increase the speed of plating and to reduce grain size within the gold layer. [62] A saturated solution of equal parts of thallium(I) formate (Tl(HCO 2)) and thallium(I) malonate (Tl(C 3 H 3 O 4)) in water is known as Clerici solution. It is a mobile, odorless liquid which changes from ...

  3. Gold plating (project management) - Wikipedia

    en.wikipedia.org/wiki/Gold_plating_(project...

    In time management, gold plating is the phenomenon of working on a project or task past the point of diminishing returns.. For example, after having met a project's requirements, the manager or the developer works on further enhancing the product, thinking that the customer will be delighted to see additional or more polished features, beyond that which what was asked for or expected.

  4. Gold plating - Wikipedia

    en.wikipedia.org/wiki/Gold_plating

    The thickness of gold plating on jewellery is noted in microns (or micro-meters). The microns of thickness determines how long the gold plating lasts with usage. The jewellery industry denotes different qualities of gold plating in the following terminology Gold flashed / Gold washed - gold layer thickness less than 0.5 micron

  5. Phytoextraction process - Wikipedia

    en.wikipedia.org/wiki/Phytoextraction_process

    Some examples are: phytosiderophores, organic acids, or carboxylates [4] If the metal is chelated at this point, then the plant does not need to chelate it later and the chelater serves as a case to conceal the metal from the rest of the plant. This is a way for a hyper-accumulator to protect itself from the toxic effects of poisonous metals.

  6. Flux (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Flux_(metallurgy)

    Removal of the native oxide layer is more troublesome; physical or chemical cleaning methods have to be employed and the surfaces can be protected by e.g. gold plating. The gold layer has to be sufficiently thick and non-porous to provide protection for reasonable storage time. Thick gold metallization also limits choice of soldering alloys, as ...

  7. Mineral processing - Wikipedia

    en.wikipedia.org/wiki/Mineral_processing

    These separators are commonly used for separating mineral sands, an example of one of these mineral processing plants is the CRL processing plant at Pinkenba in Brisbane Queensland. In this plant, zircon , rutile and ilmenite are separated from the silica gangue.

  8. Gold–aluminium intermetallic - Wikipedia

    en.wikipedia.org/wiki/Gold–aluminium_intermetallic

    Gold–aluminium intermetallic have different properties from the individual metals, such as low conductivity and high melting point depending on their composition. Due to the difference of density between the metals and intermetallics, the growth of the intermetallic layers causes reduction in volume, and therefore creates gaps in the metal ...

  9. Phytoremediation - Wikipedia

    en.wikipedia.org/wiki/Phytoremediation

    Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. [1] It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". [2]