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huahana

Selenium

wehewehe pōkole:

Lawe ʻo Selenium i ka uila a me ka wela.Hoʻololi koke ka conductivity uila me ka ikaika o ka māmā a he mea photoconductive.Hiki iā ia ke hana pololei me ka hydrogen a me ka halogen, a me ka metala e hana i ka selenide.


Huahana Huahana

Huahana Huahana

Nā kikoʻī huahana

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Hāʻawi ʻia nā kikoʻī

ʻeleʻele pauda

Maʻiʻo ≥ 99%

 (Ka palena o ka palapala noi 'hoʻohana huahana')

ʻEhā mau alomorph ka Selenium: hina hexagonal metallic selenium, uliuli iki, me ka mānoanoa pili o 4.81g/cm³ (20 ℃ a me 405.2kPa), kahi heheʻe o 220.5 ℃, kahi paila o 685 ℃, hiki ʻole ke hoʻoheheʻe ʻia i ka wai, carbon disulfide a me ka ethanol , hiki ke hoʻoheheʻe ʻia i ka sulfuric acid a me ka chloroform;He 4.39g/cm³ ʻulaʻula monoclinic crystal selenium, ka helu hoʻoheheʻe 221 ℃, kahi e hoʻolapalapa ai 685 ℃, hiki ʻole ke hoʻoheheʻe ʻia i ka wai, ethanol, hiki ke hoʻoheheʻe ʻia i ka etera, hiki ke hoʻoheheʻe ʻia i ka waikawa sulfuric a me ka waikawa nitric;ʻO ka mānoanoa pili o ka selenium amorphous ʻulaʻula he 4.26g/cm³, a ʻo ka mānoanoa pili o ka selenium aniani ʻeleʻele he 4.28g/cm³.Hoʻololi ʻia ia i ka selenium hexagonal ma 180 ℃, a ʻo ka helu hoʻolapalapa he 685 ℃.ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke hoʻoheheʻe ʻia i ka carbon disulfide.

E hāʻawi pū ʻo EVERBRIGHT® i nā kikoʻī kikoʻī i hoʻopilikino ʻia: ʻiʻo/keʻokeʻo/particlesize/PHvalue/color/packagingstyle/pack specifications a me nā huahana kikoʻī ʻē aʻe i kūpono i kāu kūlana hoʻohana, a hāʻawi i nā laʻana manuahi.

Laina Huahana

CAS Rn

7782-49-2

EINECS Rn

231-957-4

FORMULA wt

78.96

KĀWAI

ʻAno metala ʻole

 

 

NUI

4.81 g/cm³

H20 SOLUBILITY

Hiki ʻole i ka wai

PALAPALA

685

HE HOOLAHA

220.5°C

整流器
色玻
医药级1

Hoohana Huahana

Hoʻohana ʻenehana

Loaʻa iā Selenium nā waiwai photoelectric a me nā photosensitive.Hiki i ka hana Photoelectric ke hoʻololi pololei i ke kukui i ka uila, a hiki i ka hana photosensitive ke hōʻemi i ke kū'ē i ka wā e hoʻonui ai i ka mālamalama.Hiki ke hoʻohana ʻia nā waiwai photoelectric a me nā photosensitive o ka selenium i ka hana ʻana i nā photocells a me nā mika ʻike no nā kāmera a me nā cell solar.Hiki i ka Selenium ke hoʻololi i ke au i ke au pololei, no laila hoʻohana nui ʻia i ka hana ʻana i nā mea hoʻoponopono.ʻO Selenium elemental kahi semiconductor P-type hiki ke hoʻohana ʻia i nā kaapuni a me nā ʻāpana paʻa.I ke kope kope, hiki ke hoʻohana ʻia ka selenium e kope i nā palapala a me nā leka (toner cartridges).I ka ʻoihana aniani, hiki ke hoʻohana ʻia ka selenium e hana i ke aniani decolorized, aniani kala ruby ​​a me ka enamel.

Papa meidical

Hoʻonui i ka palekana

Hiki i ka selenium hana kanu ke hoʻomaʻemaʻe i nā radical manuahi i loko o ke kino, hoʻopau i nā toxins i loko o ke kino, antioxidant, hiki ke pale pono i ka hana ʻana o ka lipid peroxide, pale i nā clots koko, wehe i ka cholesterol, a hoʻonui i ka hana pale kanaka.

Kāohi i ka maʻi diabetes

ʻO Selenium ka mea ikaika o ka glutathione peroxidase, hiki ke pale i ka luku oxidative o nā pūnae beta islet, hana i ka hana maʻamau, hoʻoikaika i ka metabolism sugar, hoʻemi i ke kō koko a me ka mimi kō, a hoʻomaikaʻi i nā hōʻailona o nā maʻi maʻi diabetes.

Kāohi i ka cataract

Hiki ke hoʻopōʻino ʻia ka retina ma muli o ka ʻike nui ʻana i ka radiation kamepiula, hiki i ka selenium ke pale i ka retina, hoʻomaikaʻi i ka pau ʻana o ke kino vitreous, hoʻomaikaʻi i ka ʻike maka, a pale i ka cataracts.


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