Cerium oxide inorganic substance ine kemikari formula CeO2, light yellow kana yellowish brown anobatsira hupfu. Density 7.13g/cm3, melting point 2397°C, isinganyunguriki mumvura uye alkali, inonyungudika zvishoma muacid. Pakupisa kwe2000 ° C uye kumanikidzwa kwe15MPa, haidrojeni inogona kushandiswa kuderedza cerium oxide kuwana cerium oxide. Kana tembiricha yasununguka pa2000°C uye pressure yakasununguka pa5MPa, cerium oxide inenge yakaita yero yakatsvuka zvishoma, uye pink. Inoshandiswa sekupukuta zvinhu, catalyst, catalyst carrier (inobatsira), ultraviolet absorber, fuel cell electrolyte, mota exhaust absorber, electronic ceramics, nezvimwewo.
Chengetedzo Information
Munyu wecerium oxidezvisingawanzo zvinhu zvepasi zvinogona kuderedza zvirimo muprothrombin, kuita kuti zvisashande, zvivhare chizvarwa chethrombin, precipitate fibrinogen, uye kukonzeresa kuparara kwephosphoric acid makomisheni. Kutyisa kwezvinhu zvisingawanzoitiki zvepasi kunopera simba nekuwedzera kwehuremu hweatomu.
Inhalation yecerium-ine guruva inogona kukonzera occupational pneumoconiosis, uye chloride yayo inogona kukuvadza ganda uye kutsamwisa mucous membranes yemaziso.
Iyo yakanyanya kubvumidzwa yekuisa: cerium oxide 5 mg / m3, cerium hydroxide 5 mg / m3, gasi masks inofanirwa kupfekwa kana ichishanda, kuchengetedzwa kwakakosha kunofanira kuitwa kana paine radioactivity, uye guruva rinofanira kudziviswa kubva pakupararira.
nature
Chigadzirwa chakachena chichena chinorema poda kana cubic crystal, uye chigadzirwa chisina kuchena chakajeka yeyero kana kunyange pink kune tsvuku tsvuku (nekuti ine mavara e lanthanum, praseodymium, nezvimwewo). Zvinenge zvisinganyunguriki mumvura uye asidhi. Relative density 7.3. Kunyungudika: 1950°C, nzvimbo yekuvira: 3500°C. Toxic, iyo yepakati inouraya dose (gonzo, remuromo) inenge 1g/kg.
store
Chengetedza mhepo.
Quality Index
Yakakamurwa nekuchena: kuchena kwakadzika: kuchena kusingapfuuri 99%, kuchena kwakanyanya: 99.9% ~ 99.99%, Ultra-yakanyanya kuchena pamusoro pe99.999%
Yakakamurwa nehukuru hukuru: coarse poda, micron, submicron, nano
Mirayiridzo yekuchengetedza: Chigadzirwa chine muchetura, hachina kunaka, hachitsamwise, chakachengeteka uye chakavimbika, chakagadzikana mukuita, uye hachiite nemvura uye organic zvinhu. Iyo yemhando yepamusoro yegirazi yekujekesa mumiriri, decolorizing agent uye kemikari yekubatsira mumiriri.
use
oxidizing agent. Catalyst for organic reactions. Kuongorora kwesimbi nesimbi seyepasi pasi simbi chiyero sampuli. Redox titration kuongororwa. Decolorized girazi. Vitreous enamel opacifier. alloys anodzivirira kupisa.
Inoshandiswa sechinhu chinowedzera muindasitiri yegirazi, sechinhu chekukuya chegirazi replate, uye se anti-ultraviolet mhedzisiro mune cosmetics. Yakawedzerwa kusvika pakukuya kwegirazi rinoona, lenzi yemaziso, uye chubhu yepikicha, uye inotamba zvinzvimbo zvekubvisa ruvara, kujekesa, uye kunyura kwemwaranzi yeultraviolet nemaranzi erekitironi egirazi.
Nguva yekutumira: Zvita-14-2022