ʻO Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauka a i ʻole ke kumu kūʻai granules

Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauda a granules kumu kūʻai Hōʻike kiʻi
  • ʻO Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauka a i ʻole ke kumu kūʻai granules
  • ʻO Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauka a i ʻole ke kumu kūʻai granules
  • ʻO Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauka a i ʻole ke kumu kūʻai granules

ʻO ka wehewehe pōkole:

inoa huahana: Selenium Se pauka

Kumu: Se

Maʻemaʻe: 99.9%- 99.999%

Ka helu helu: 7782-49-2

Nānā: ʻeleʻele pauka

Nui ʻāpana: 200 mesh


Huahana Huahana

Huahana Huahana

Hōʻike huahana

ʻO ka pauka ʻulaʻula amorphous, lilo i ʻeleʻele i ke kū ʻana a me ka crystalline i ka wela; Hiki ke hoʻomākaukau ʻia nā ʻano vitreous a me colloidal.

Hoʻopalupalu ke ʻano Amorphous ma 40 °C a hoʻoheheʻe ʻia ma 217 °C. ʻAʻole hiki ke loaʻa ma kona kūlana elemental ma ke ʻano, a i ʻole ma ke ʻano he ʻano huila maʻemaʻe.

Hōʻike

hōʻailona:
Se
CAS
7782-49-2
Helu ʻAtoma:
34
Kaumaha ʻAtoma:
78.96
ʻO ka mānoanoa:
4.79 gm/cc
Lae hehee:
217 oC
Lae paila:
684.9 oC
ʻO ka wela wela:
0.00519 W/cm/K @ 298.2 K
Ke kū'ē uila:
106 microhm-cm @ 0 oC
Electronegativity:
2.4 Paulings
Wela Kūikawā:
0.767 Cal/g/K @ 25 oC
Wela o ka mahu:
3.34 K-cal/gm atom ma 684.9 oC
Wela o ka hui ʻana:
1.22 Cal/gm mole

 

Palapala noi

1 Hana ʻia: selenium(I) chlorid, Selenium dichloride, Selenides, mercury selenide.

2 ʻOihana ʻenehana kiʻekiʻe ʻepekema: lead selenide, zinc selenide, copper indium gallium diselenide.

3 Uila: Semiconductor, metala electropositive, Tetraselenium tetranitride.

4 Kemika: Selenols, selenium isotope, Plastics, hoʻolaha kiʻi.

5 Ke noi ʻoihana: Ka hana aniani, pahu selenium, kiʻi electrostatic, mea hana ʻike.

ʻO kā mākou pono

Rare-earth-scandium-oxide-me-nui-kuai-2

ʻO ka lawelawe hiki iā mākou ke hāʻawi

1) Hiki ke hoʻopaʻa inoa ʻia ka ʻaelike maʻamau

2) Hiki ke pūlima ʻia ka ʻaelike hūnā

3) ʻEhiku lā hoʻihoʻi hōʻoia

ʻOi aku ka mea nui: hiki iā mākou ke hāʻawi i ka huahana wale nō, akā ʻo ka lawelawe ʻenehana hoʻonā!

FAQ

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Ka manawa o waena o ka hoʻomaka a i ka wā pau

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Laʻana

Loaʻa, hiki iā mākou ke hāʻawi i nā laʻana liʻiliʻi liʻiliʻi no ke kumu loiloi maikaʻi!

Pūʻolo

1kg no ka ʻeke fpr samples, 25kg a i ʻole 50kg no ka pahu, a i ʻole e like me kou makemake.

Waihona

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