Sodium Selenite 10102-18-8

Sodium selenite Supplier

Xi'an Yihui tuam txhab yog cov chaw tsim khoom ntawm sodium selenite. Peb tuaj yeem tsim sodium selenate nrog 99.9% cov ntsiab lus. Nws tuaj yeem siv rau hauv cov khoom noj, tshuaj, khoom siv kho mob, lossis tshuaj pleev ib ce thiab ua tau raws li USP, BP, EP, CP cov qauv. Peb tuaj yeem muab koj cov khoom ntawm qhov siab tshaj plaws caliber ntawm tus nqi sib tw tshaj plaws. Koj qhov kev xaiv zoo tshaj plaws rau lub npe nrov sodium selenite tsum yog Xi'an Yihui Company!

Peb qhov zoo dua

Kev nplua nuj experice: peb muaj 13 Xyoo kev ua haujlwm;

Cov neeg siv khoom thoob plaws lo lus: muag rau ntau tshaj 100 lub teb chaws;

Muab cov khoom sib txawv: cov khoom lag luam tau siv rau txhua lub npe thoob ntiaj teb loj hauv kev lag luam tshuaj, tshuaj noj, tshuaj pleev ib ce, tsiaj noj khoom haus thiab khoom noj khoom haus.

Nqe ua ntej: qis MOQ nrog tus nqi sib tw;

Daim ntawv pov thawj zoo: ISO; Halal; Kosher tau ntawv pov thawj

Kev pab cuam tom qab muag: Pab neeg tshaj lij 7 * 24 teev cov neeg siv khoom.

Sodium selenite yog dab tsi?

Sodium selenite 10102-18-8yog ib qho inorganic compound nrog cov tshuaj formula Na2SeO3. Cov ntsev yog cov xim tsis muaj xim. Lub pentahydrate Na2SeO3 · 5H2O yog cov dej-soluble selenium ntau tshaj plaws.

Cov ntaub ntawv tseem ceeb:

Khoom npe:Sodium selenite

Cas No.:10102-18-8

Cov mis mos molecular: Na2O3Se

Cov mis hnyav: 172.94

Cov ntsiab lus selenium: Ntau dua lossis sib npaug li 44.7%; Ntau dua lossis sib npaug li 45%; Ntau dua lossis sib npaug li 45.5%

Pob: 25kg / hnab; 25kg / nruas

Lub cev thiab tshuaj muaj zog: tsis muaj kob crystal, melting point 1056 degree. Stable nyob rau hauv huab cua, soluble nyob rau hauv dej, insoluble nyob rau hauv cawv.

Kev Siv: Feem ntau yog siv hauv tshuaj thiab kev lag luam pub khoom noj ua zaub mov muaj zog. Siv rau kev ntsuam xyuas ntawm alkaloids thiab kev npaj ntawm iav liab thiab glaze.

Cia kub: chav temp.

Stability: ruaj khov rau 2 xyoos

Tus qauv qauv:

Cov qauv zoo:

Synthesis:

Sodium selenite 10102-18-8Feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm selenium dioxide nrog sodium hydroxide:

SeO2 + 2 NaOH → Na2SeO3 + H2O

Tom qab cua sov rau 40 degree, lub hydrated compound yog hloov mus rau hauv daim ntawv anhydrous.

Zoo ib yam li sodium sulfite, Na2SeO3 muaj pyramidal divalent anion SeO2−3. Nws tuaj yeem raug oxidized los ua sodium selenate, Na2SeO4.

Daim ntawv thov:

• Zoo li sodium selenate thiab zinc selenite, sodium selenite feem ntau yog siv los tsim cov iav tsis muaj xim, qhov twg cov xim liab ua los ntawm cov ntsev selenite no pab kom tsis txhob muaj xim ntsuab impurities los ntawm hlau impurities.
• Vim tias selenium yog ib qho tseem ceeb, sodium selenite kuj yog siv los ua ib feem ntawm cov khoom noj xws li multivitamin / minerals, tab sis cov tshuaj feem ntau siv L-selenomethionine los yog selenized poov xab xwb yog tias tsuas yog selenium.
• US FDA tau pom zoo cov tshuaj selenium rau kev siv tsiaj pub, nrog rau sodium selenite yog cov feem ntau siv hauv cov khoom noj tsiaj. Raws li ib tsab xov xwm, me ntsis paub txog cov selenium tebchaw uas tau pom zoo siv rau hauv cov tsiaj noj thaum qhov kev txiav txim siab tau ua nyob rau xyoo 1970 los tswj lawv txoj kev siv, tab sis tsuas yog cov ntsev ntsev inorganic selenium (xws li sodium selenite thiab sodium selenate) tuaj yeem siv rau tsiaj. pub qhov twg tus nqi tso cai thaum txoj cai raug muab tso rau.

Kev nyab xeeb:

Selenium tuaj yeem ua rau muaj kuab lom nyob rau hauv siab. Rau sodium selenite, cov tshuaj lom neeg mob ntev tau piav qhia txog li 2.4 txog 3 milligrams ntawm selenium ib hnub. Xyoo 2000, Lub Tsev Haujlwm Saib Xyuas Tshuaj hauv Tebchaws Meskas tau tsim kom muaj kev noj qab haus huv siab siab (UL) rau selenium los ntawm txhua qhov chaw, suav nrog zaub mov, dej haus, thiab kev noj haus, ntawm qhov siab ntawm 400 micrograms ib hnub. European Food Safety Authority kuj tau tshuaj xyuas qhov teeb meem kev nyab xeeb thiab teeb tsa lawv UL rau selenium ntawm 300 micrograms ib hnub.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias ntau tshaj cov kev pom zoo ntawm cov selenium kom tsawg tuaj yeem ua rau muaj cov tsos mob toxicity, xws li plab hnyuv, plaub hau poob, ntsia thawv brittleness, thiab neurological txawv txav. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum tau ua raws li cov lus qhia tau pom zoo thiab sab laj nrog cov kws kho mob rau kev noj tshuaj kom raug thiab ntxiv.

Stability thiab cia:

Sodium selenite yog ib qho chaw ruaj khov, tab sis nws tuaj yeem raug decomposition nyob rau hauv tej yam kev mob. Nov yog qee cov lus piav qhia txog kev ruaj ntseg thiab kev cia khoom ntawm sodium selenite:

Kev ruaj ntseg:Sodium selenite yog qhov ruaj khov ntawm chav tsev kub, tab sis nws tuaj yeem degrade nyob rau hauv qhov kub thiab txias, tshav ntuj ncaj qha, lossis qhov chaw ntub dej. Nws tuaj yeem cuam tshuam nrog oxygen, acids, thiab lwm yam oxidizing cov neeg ua haujlwm, maj mam hloov mus rau selenate ntsev.

Cia tej yam kev mob:Txhawm rau kom ntseeg tau lub sijhawm ntev thiab ruaj khov ntawm sodium selenite, ntawm no yog qee qhov kev pom zoo cia:

• Kub: Khaws nyob rau hauv chav tsev kub, zam qhov kub thiab txias txias.
• Lub teeb: Khaws rau hauv cov thawv uas tiv thaiv lub teeb, tiv thaiv nws los ntawm tshav ntuj ncaj qha.
• Humidity: Khaws ib puag ncig qhuav, tsis txhob ya raws thiab cov av noo siab.
• Ntim: Siv cov thawv ntim zoo los tiv thaiv huab cua, noo noo, thiab lwm yam impurities nkag mus.
• Kev tiv thaiv hluav taws kub thiab tawg: Txij li thaum sodium selenite tuaj yeem cuam tshuam nrog lwm cov tshuaj, nws yuav tsum muab cais tawm ntawm cov khoom tawg thiab tawg.

Cov neeg siv khoom tawm tswv yim

Xi'an Yihui daim ntawv pov thawj

Xi'an Yihui tuam txhab muaj cov hauv qab no zoo:

Kev ruaj ntseg zoo: peb siv high-purity lead-free ntau lawm tshuab. Cov khoom tau dhau los ua ntau yam kev tsim khoom nruj thiab cov txheej txheem kuaj xyuas kom paub meej cov khoom zoo.

Tus nqi tsim nyog: peb muaj tus nqi tsim nyog piv rau cov khoom zoo sib xws.

Cov kev pabcuam zoo tshaj plaws: peb muaj cov kws tshaj lij kev pabcuam thiab pab pawg pabcuam tomqab muag, yog li peb tuaj yeem muab kev pabcuam kev tshaj lij thiab kev pabcuam tomqab muag los xyuas kom cov neeg siv khoom tau txais kev paub zoo tshaj plaws.

Unified hom duab: peb txais ib lub logo sib koom ua ke thiab tsim qauv ntawm cov khoom ntim, ua kom yooj yim rau cov neeg siv khoom kom paub txog lub hom phiaj thiab pab txhawb lub hom lag luam.

Xi 'an Yihui tuam txhab muag khoom, khoom siv ntau lawm

Xi'an Yihui tuam txhab muaj qib siab ntawm kev tshawb fawb thiab kev txhim kho muaj peev xwm

Xi'an Yihui Lub Tuam Txhab Advanced ntau lawm cov cuab yeej thiab thev naus laus zis

Zoo meej kev pab cuam tom qab muag

Hauv kev xaus, raws li tus kws tshaj lijSodium selenite 10102-18-8chaw tsim tshuaj paus, peb muaj advanced technology, scale kom zoo dua, qhov zoo tshaj plaws zoo, nplua nuj ntau lawm kev, thiab cov kev pab zoo heev. Cov txiaj ntsig zoo no yuav ua rau pebSodium selenite anhydroussawv tawm hauv kev sib tw ua lag luam thiab yeej ntau tus neeg siv khoom ntseeg siab thiab kev txhawb nqa. yog koj xav tauSodium selenite 45%, pls xav tiv tauj peb txhua lub sijhawm. peb yuav teb koj asap.

peb cov ntaub ntawv tiv tauj:

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