Cas 7782-49-2 maʻemaʻe kiʻekiʻe 99.9% -99.999% Selenium Se pauka kumu kūʻai

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

Hoʻolauna pōkole

1. inoa huahana:Selenium Se pauka

2. Kumu: Se3.Maʻemaʻe: 99.9%- 99.999%4.Ka helu helu:7782-49-2

5. Nānā: ka paukaʻeleʻele
6. Ka nui o ka ʻāpana: 200 mesh

Ke ano.

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.

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.
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
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Hoʻolauna Hui

Aia ʻo Shanghai Epoch Material Co., Ltd. ma ke kikowaena waiwai—Shanghai.Hoʻopili mau mākou i "Nā mea ʻoi aku ka maikaʻi, ola maikaʻi" a me ke komite i ka ʻimi noiʻi a me ka hoʻomohala ʻana o ka ʻenehana, e hoʻohana ai i ke ola o ke kanaka i kēlā me kēia lā e hoʻomaikaʻi i ko mākou ola.

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Ua hala kā mākou hui i ka ʻōnaehana hoʻokele o ISO 9001, a loaʻa iā mākou kā mākou ʻōnaehana SOP no ka hana ʻana, kūʻai aku, a ma hope o ka lawelawe kūʻai!Manaʻolana hiki iā mākou ke hāʻawi i kahi lawelawe maikaʻi a ʻoihana no ʻoe!
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Loaʻa iā mākou nā mea kūʻai ma ka honua holoʻokoʻa, a hiki i kēia manawa, ua hoʻokumu i kahi hui maikaʻi me sumsung, LG, LV, a me nā mea kūʻai aku he nui pū kekahi, a no ka ʻike hou aku, e ʻoluʻolu e kelepona mai iā mākou!
FAQ
1) Hana ʻoe a kālepa paha?

He mea hana mākou, aia kā mākou hale hana ma Shandong, akā hiki iā mākou ke hāʻawi i kahi lawelawe kūʻai kūʻai hoʻokahi no ʻoe!
2) Nā huaʻōlelo uku: T / T (telex transfer), Western Union, MoneyGram, BTC (bitcoin), etc.3) Lead time≤25kg: i loko o ʻekolu mau lā hana ma hope o ka loaʻa ʻana o ka uku.>25kg: hoʻokahi pule
4) SampleAvailable, hiki iā mākou ke hāʻawi i nā mea liʻiliʻi liʻiliʻi liʻiliʻi no ka loiloi maikaʻi! 5) Package1kg no kēlā me kēia ʻeke fpr samples,

25kg a i ʻole 50kg no ka pahu, a i ʻole e like me kāu e koi ai.6)StorageStore e paʻa paʻa i ka pahu ma kahi maloʻo, ʻoluʻolu a maikaʻi.


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