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| Name: | Thadiareazise  | | E-Mail: | battery650 126.com | | Homepage: | http://www.large-battery.com | | Time: | 06/25/2012 at 5:45am (UTC) | | Message: | Determining of Lithium
Dr. Doug Stewart
Lithium was discovered before Johan Arfvedson in 1817, during an inquiry of petalite
(LiAlSi4O10).
He found the petalite contained ¡°silica, alumina and an alkali.¡± (1)
The new alkali metal in the petalite had harmonious ' properties.
It required more acid to even it than sodium and its carbonate was only sparingly soluble in unworkable šC distant from sodium carbonate.
The changed alkali differed from potassium because it did not recite a hasty with tartaric acid.
Arfvedson tried to bring out a sterling sample of the unique metal close to electrolysis, but he was ineffective; the battery he reach-me-down was not energetic enough. (2)
The simon-pure metal was isolated the following year nearby both William Brande and Humphry Davy working independently.
Davy obtained a minuscule quantity of lithium metal aside electrolysis of lithium carbonate. (3)
He famous the modish element had a red warmth color to some like strontium and produced an alkali colloidal suspension when dissolved in water.
In days less safety-conscious than the show, Brande said of lithium, ¡°its discovery tastes acrid like the other unfluctuating alkalies.¡± (4)
By 1855 Robert Bunsen and Augustus Matthiessen were independently producing the metal in chunky quantities by electrolysis of molten lithium chloride.
Lithium¡¯s respect is derived from the Greek facts ¡®lithos¡¯ interpretation, ¡®stone.¡¯ |
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