Seleni dioxide CAS 7446-08-4 tau gaosiga

Fa'amatalaga Puupuu:

Seleni dioxide cas 7446-08-4 fale gaosi oloa

igoa ole oloa:Seleni dioxide

CAS:7446-08-4

MF:O2Se

MW:110.96

EINECS:231-194-7

Uiga:gaosimea

afifi:1 kilokalama / kilokalama poʻo 25 kilokalama / paʻu

Auina imeli ia matou

Fa'amatalaga Oloa

Faailoga o oloa

Fa'amatalaga

Igoa Oloa: Seleni dioxide
CAS: 7446-08-4
MF: O2Se
MW: 110.96
EINECS: 231-194-7
Liu liusuavai: 315 °C (subl.)(malamalama)
Mea fa'apuna: 684.9 °C(malamalama)
Malosi: 4.81 g/mL ile 25 °C(malamalama)
Ausa malosi: 1 mm Hg (157 °C)
Fa'ailoga fa'afofoga: nD20 <1.76
Fp: 315°C
Merck: 14,8434

Fa'amatalaga

Fa'aaliga	Pa'u pa'epa'e
Su'ega	99% min
Liu liusuavai	315 °C (lalo.)(malamalama)
Fa'apuna	684.9 °C(malamalama)

Fa'atatauga

1. Selenium dioxide cas 7446-08-4 faʻaaogaina i le gaosiga o seleni maualuga ma isi mea faʻapipiʻi seleni, faʻapea foʻi ma se vailaʻau faʻamaʻi ma faʻamalosi mo vailaʻau faʻasolosolo.
2. Seleni dioxide cas 7446-08-4 faʻaaogaina e pei o le vailaʻau faʻamaʻi faʻamaʻi, catalyst, reagent kemisi, mea mata mo le gaosiga o mea faʻapipiʻi seleni inorganic eseese.

Totogi

* E mafai ona matou tuʻuina atu le tele o auala totogi mo filifiliga a tagata faʻatau.

* A laʻititi le aofaʻi, e masani ona totogi e tagata faʻatau e ala i PayPal, Western union, Alibaba, ma isi.

* A tele le aofaʻi, e masani ona totogi e tagata faʻatau e ala i le T / T, L / C i le vaʻaiga, Alibaba, ma isi.

* E le gata i lea, o le tele ma le tele o tagata faʻatau o le a faʻaogaina le Alipay poʻo le WeChat totogi e fai ai totogi.

Tulaga teuina

Teu i totonu o se faleteuoloa ea ma mago.Faʻalogo lelei i le susu, ma e tatau ona faʻamaufaʻailoga le afifiina.Ina ia puipuia le faaleagaina o le afifiina.

Maumau

1. Paʻepaʻe malamalama acicular tioata tioata, tofo oona ma lagona mu.O lona ausa e samasama-lanumeamata, ma se tofo manogi, mautu i le malamalama ma le vevela, ma hygroscopic.E tofo oona ma e mu le lagona.E fa'ama'iina, ma o le monomer seleni o le a fa'afefeteina pe a feiloa'i ma so'o fa'aitiitiga fa'aola.oona.

2. Fa'afaigofie ona fa'aitiitia ile seleni.

3. Fa'aaogā meafaigaluega puipui i le taimi o le fa'agaioiga.Fa'alogo lelei e siaki soo le maualuga o le seleni i le ea.Siaki lou tino i taimi uma.Tuuina atu se meaai e tele i porotini ma amino acids.

4. Mausali i le ea ma le susu.Talu ai e sili ona oona, e fautuaina e taulimaina ma faʻaoga faʻaeteete i totonu o se pusa asu.

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Sosoo ai: Tellurium dioxide CAS 7446-07-3 tau gaosiga