SII

SII may be an acronym of:

  • Chartered Institute for Securities & Investment (Securities & Investment Institute), a London-based professional and training body
  • Investigation Bureau for Railway, Funicular and Boat Accidents (Servizio d’inchiesta sugli infortuni dei trasporti pubblici), a Swiss Government accident and incident investigation agency
  • Seiko Instruments Inc., one of three core companies of the Seiko Group
  • Silicon Image Inc., a manufacturer of wireless and wired connectivity products used for high-definition content
  • Smith International Inc., New York Stock Exchange ticker symbol
  • Speech transmission index (Speech intelligibility index), a way to measure the understandability of speech for a listener in different conditions (noise, hearing loss, etc.)
  • Standards Institution of Israel, the national standard-setting organization of Israel and an ISO member organization
  • Strong Interest Inventory, one of the most popular career assessment tools

    • or it may refer to

  • Secondary somatosensory cortex (S2), a functionally-defined region in the brain's parietal cortex
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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/SII

    Silicon tetraiodide

    Silicon tetraiodide is the chemical compound with the formula SiI4. It is a tetrahedral molecule with Si-I bond lengths of 2.432(5) Å.

    SiI4 is a precursor to silicon amides of the formula Si(NR2)4 (R = alkyl). It has also been of interest in the manufacture and etching of silicon in microelectronics.

    Reactions

    The compound is stable to strong heating and can be stored for long periods at room temperature but must be kept dry as it reacts quickly with water and also reacts slowly with moisture in the air in a similar way to silicon tetrachloride. It can be made on a large scale by reaction of silicon or silicon carbide with iodine on heating to about 200 °C. Of more academic interest is the reaction of silane with iodine vapour at 130 - 150 °C, as this produces a series of compounds ranging from iodosilane SiH3I to diiodosilane SiH2I2 and triiodosilane SiHI3 as well. These compounds are colourless liquids at room temperature. The last one can be readily distinguished from the similar carbon compound, iodoform which is a yellow solid at room temperature.

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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Silicon_tetraiodide

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    Latest News for: sii

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    ‘Lack of communication between you and SII’: Sanjeev Sanyal reinstated as Chancellor of Gokhale

    Indian Express 05 Apr 2025
    SIS V-P accuses leadership of not following due process in removing Sanyal as GIPE\u2019s Chancellor .
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    Sanjeev Sanyal removed as GIPE Chancellor by SII

    Indian Express 03 Apr 2025
    Institute\u2019s Twitter handle, however, denies it\r. \r. .
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    2024 O-SII buffer framework review (Bank of England)

    Public Technologies 28 Mar 2025
    The other systemically important institutions (O-SII) buffer is the UK's capital buffer for certain domestic systemically important firms ... This consultation is relevant to PRA-regulated firms that are subject to the O-SII buffer.
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