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Thread: Selenium

  1. #11
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    Jul 2016
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    It also accumulates in the residues from sulphuric acid manufacture.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  2. #12
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    This is related in some way also.

    Tellurium wiki

    I have a feeling that if you invested in this right now you could make a killing...

    This stuff is freaking cool!
    Last edited by Loki Morningstar; 08-14-2016 at 11:18 PM.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  3. #13
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    142
    Antimony is pretty cool too eh? I never realised that this physical alchemy stuff could be so fun! Can you believe that Antimony(III) sulfide, Sb2S3, was recognized in predynastic Egypt as an eye cosmetic (kohl) as early as about 3100 BC, when the cosmetic palette was invented, and a copper object plated with antimony dating between 2500 BC and 2200 BC has been found in Egypt.

    Wikipedia is so awesome!
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  4. #14
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    I think I am quickly starting to realise that in my opinion Gold Should not be the goal of Neo-Alchemy. It seem there are plenty of rarer earth metals with greater use.

    Man I love this universe in which we live. What a cool place.
    Last edited by Loki Morningstar; 08-15-2016 at 04:40 PM.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  5. #15
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    It seem that the book of Arnold of Villanova (c. 1235-1311) that talks of "red sulphur" (sulphur rubeum), is 'Rosarium Philosophorum' which was found on the walls of chambers in which native sulphur was vaporised.

    This is from the book 'Selenium in food and health' by 'C.Reilly'. It seems a relatively good book, and I think I might buy it.
    Last edited by Loki Morningstar; 08-15-2016 at 04:53 PM.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  6. #16
    Join Date
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    142
    Selenium trioxide SeO3, can be made by the action of sulphur trioxide on potassium selenate. (Cook the sulphur well with the sulphur?)

    It is a white, crystalline, hydroscopic compound which dissolves in water to form selenic acid.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  7. #17
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    The organic compounds of selenium are considerable interest and several of them play important roles in biochemistry and nutrition. Organoselenium compounds are similar, but not identical, in chemistry and biochemical properties to organosulphur compounds. Because a increase in atomic number results in a decrease in bond stability, selenium compounds are less stable on exposure to light or heat and are more easily oxidised than are their sulphur analogues.

    Many selenium compounds change colour on exposure to light or air and have unpleasant odours. To some extent, such properties discouraged investigators of these compounds in the past, understandably so, if we are to judge by a story related by Frost. This tells of a unfortunate experience of an organic chemist who worked on selenium at the University of Cambridge. His efforts at synthesis, we are told, led to such a stench that he moved to the roof of his lab to try again. "There, however, the horrible odour permeated all of Cambridge and even disrupted a ceremony at the university in memory of Darwin.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  8. #18
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    Aug 2012
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    Quote Originally Posted by Loki Morningstar View Post
    I think I am quickly starting to realise that Gold is not the goal of Alchemy. It seem there are plenty of other rare earth metals with great use, that are actually rarer than gold...
    The "realization" is wrong in this case since the alchemists knew nothing of these rare earth metals, as they had no way of reducing them back to their metallic forms. They were plenty acquainted with gold and silver, though, the two "noble" metals since remote antiquity, and thus that was always their goal.

  9. #19
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    I have edited my post. Hope it is more clear.
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

  10. #20
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    Jul 2016
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    It is a shame this is so expensive, I would have liked to have read this.

    Mice injected with gold and selenium
    Distill fact from theory, fixate on inferences drawn.
    Upon which points does the mystery turn?
    "What's the matter?", one asks.
    "The universe is mental!", one replies.
    Know The Self.

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