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Results 931 - 940 of 3169 for Analytical instrument
  • Article - 10 Sep 2001
    TPX has a very low density (0.83g/cm3) and is transparent. Has a reasonably high continuous use temperature (approx. 75°C (170°F)) and may be autoclaved for sterilisation. Good high frequency...
  • Article - 29 Jul 2001
    Black was the first person to recognize magnesium (Mg) as an element in 1755. Later, in 1808, Davy isolated this element by evaporating mercury from a magnesium amalgam.
  • Article - 23 Jul 2001
    Ancient Chinese and Hindus were familiar with mercury (Hg). The metal was also found in Egyptian tombs of 1500 BC. Mercury rarely occurs as such in nature.
  • Article - 20 Jul 2001
    Cobalt is a brittle, hard metal white in appearance resembling nickel but with a bluish tinge instead of the yellow of nickel. It imparts hardness to steels and alloys. Radioactive cobalt 60 has many...
  • Article - 20 Jul 2001
    In its pure state chromium is a steel-silvery grey with bluish tinge lustre. It is an extremely hard metal that takes a high polish. As a coating it has no capilliary action to oil and water. Its main...
  • Article - 20 Jul 2001
    Caesium is the most electropositive and most alkaline element. It is also highly reactive. It is used as an oxygen getter, a gamma-ray emmitter, in teletherapy, as a catalyst for hydrogenation,...
  • Article - 20 Jul 2001
    Cerium is the most abundant of the rare earth metals. It is malleable and oxidises readily at room temperature. It is used in pyrophoric alloys for cigarette lighters and in the making of some...
  • Article - 20 Jul 2001
    Beryllium is a high melting point metal with low density. It is commonly alloyed with copper, aluminium and nickel. Other applications include aerospace, gyroscopes, radiation detectors and other...
  • Article - 20 Jul 2001
    Bismuth is one of few metals that increase in volume upon solidification. It is the most diamagnetic of metals and has the second lowest thermal conductivity. Uses are catalysts, fire protection,...
  • Article - 20 Jul 2001
    In 1817, German chemist Friedrich Strohmeyer discovered cadmium from an impurity of zinc carbonate (ZnCO3). Cadmium derives from the Latin term ‘cadmia’ and the Greek word ‘kadmeia’, which are ancient...

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