Selenium dioxide CAS 7446-08-4 kumu kūʻai hana

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Selenium dioxide cas 7446-08-4 mea hoʻolako hale hana


  • Inoa mea kūʻai :Selenium dioxide
  • CAS:7446-08-4
  • MF:O2Se
  • MW:110.96
  • EINECS:231-194-7
  • ʻAno:mea hana
  • Pūʻolo:1 kg / kg a i ʻole 25 kg / pahu
  • Huahana Huahana

    Huahana Huahana

    wehewehe

    Inoa Huahana: Selenium dioxide
    CAS: 7446-08-4
    MF: O2Se
    MW: 110.96
    EINECS: 231-194-7
    Ka helu hehee: 315 °C (subl.)(L.)
    Puni paila: 684.9 °C(kukui.)
    Māmā: 4.81 g/mL ma 25 °C(māmā)
    Pumi mahu: 1 mm Hg (157 °C)
    Hōʻike hoʻohālikelike: nD20 <1.76
    Fp: 315°C
    Merck: 14,8434

    Hōʻike

    Ka nana aku Pauda keʻokeʻo
    Hoʻāʻo 99% min
    Lae hehee 315 °C (subl.)(kumu)
    Lae paila 684.9 °C(māmā)

    Palapala noi

    1. Selenium dioxide cas 7446-08-4 i hoʻohana ʻia i ka hana ʻana i ka selenium maʻemaʻe kiʻekiʻe a me nā pūhui selenium ʻē aʻe, a me kahi oxidant a me ka catalyst no nā lāʻau lapaʻau synthetic.
    2. Selenium dioxide cas 7446-08-4 i hoʻohana ʻia ma ke ʻano he mea hoʻoheheʻe organik, catalyst, reagent kemika, mea maka no ka hana ʻana i nā pūhui selenium inorganic.

    Uku

    * Hiki iā mākou ke hāʻawi i nā ʻano uku uku no ka koho ʻana o nā mea kūʻai aku.

    * Ke liʻiliʻi ka nui, hana maʻamau nā mea kūʻai aku ma o PayPal, Western Union, Alibaba, etc.

    * Ke nui ka nui, uku maʻamau nā mea kūʻai ma o T / T, L / C ma ka ʻike, Alibaba, etc.

    * Ma waho aʻe, ʻoi aku ka nui o nā mea kūʻai aku e hoʻohana iā Alipay a i ʻole WeChat uku e uku.

    uku

    Nā kūlana mālama

    E kūʻai i loko o kahi hale kūʻai maloʻo a maloʻo.E makaʻala i ka makū, a pono e hoʻopaʻa ʻia ka pahu.No ka pale ʻana i ka pōʻino i ka ʻeke.

    Paʻa

    1. Keʻokeʻo acicular crystalline pauka, ʻono ʻawaʻawa a me ke ʻano wela.He melemele-'ōmaʻomaʻo kona mahu, me ka ʻono ʻono, kūpaʻa i ka māmā a me ka wela, a me ka hygroscopic.ʻono ʻawaʻawa a loaʻa ke ʻano wela.He mea hoʻohāhā ia, a e hoʻoheheʻe ʻia ka monomer selenium i ka wā e hālāwai ai me ka mea hoʻemi organik.ʻawaʻawa.

    2. Hoʻemi maʻalahi i ka selenium.

    3. E hoʻohana i nā mea pale i ka wā e hana ai.E makaʻala i ka nānā pinepine ʻana i ka neʻe o ka selenium i ka lewa.E nānā mau i kou kino.Hāʻawi i kahi meaʻai momona i ka protein a me nā waikawa amino.

    4. Paʻa i ka ea a me ka haʻahaʻa.No ka mea he mea ʻawaʻawa loa ia, ua ʻōlelo ʻia e mālama a hoʻohana pono i loko o kahi puʻupuʻu fume.


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