I-lithium hydride CAS 7580-67-8 Ubumsulwa obungu-99% njenge-ejenti yokunciphisa
Incazelo Yomkhiqizo
I-lithium hydride iyimpuphu eqinile noma emhlophe ephuma kokumhlophe kuya kokumpunga, ekhanyayo, engenaphunga eba mnyama ngokushesha lapho itholakala ekukhanyeni. Isisindo sama-molecule = 7.95; Ubukhulu obuqondile (H2O:1)=0.78; Iphuzu lokubila = 850℃ (ibola ngaphansi kwe-BP); Iphuzu lokuqandisa/lokuncibilika = 689℃; Iqondo lokushisa elizenzakalelayo = 200℃. Ukuhlonza Ingozi (okusekelwe ku-NFPA-704 M Rating System): Impilo 3, Ukuvutha 4, Ukusabela 2. I-solid evuthayo engakha amafu othuli olusemoyeni angaqhuma uma ethinta ilangabi, ukushisa, noma ama-oxidizer.
Izakhiwo Zomkhiqizo
I-Lithium hydride (LiH) iyi-crystalline salt substance (i-cubic egxile ebusweni) emhlophe ngesimo sayo esimsulwa, Njengezinto zobunjiniyela, inezakhiwo ezithakazelisayo kwezobuchwepheshe eziningi. Isibonelo, okuqukethwe okuphezulu kwe-hydrogen kanye nesisindo esincane se-LiH kwenza kube usizo ezivikelweni ze-neutron kanye nabaqondisi ezitshalweni zamandla enuzi. Ngaphezu kwalokho, ukushisa okuphezulu kokuhlanganiswa kanye nesisindo esincane kwenza i-LiH ifaneleke kwimidiya yokugcina ukushisa yezitshalo zamandla elanga kuma-satellite futhi ingasetshenziswa njengesinki sokushisa kwezinhlelo ezahlukene. Ngokuvamile, izinqubo zokukhiqizwa kwe-LiH zihilela ukuphathwa kwe-LiH emazingeni okushisa angaphezu kwe-melting point yayo (688 DC). Insimbi engagqwali yohlobo lwe-304L isetshenziselwa izingxenye eziningi zenqubo eziphatha i-LiH encibilikisiwe.
I-lithium hydride iyi-hydride ejwayelekile ye-ionic ene-lithium cations kanye nama-anion e-hydride. I-electrolysis yezinto ezincibilikisiwe iholela ekwakhekeni kwensimbi ye-lithium ku-cathode kanye ne-hydrogen ku-anode. Ukusabela kwamanzi e-lithium hydride, okuholela ekukhishweni kwegesi ye-hydrogen, nakho kuyinkomba ye-hydrogen eshajeke kabi.
I-lithium hydride iyimpuphu eqinile noma emhlophe ephuma kokumhlophe kuya kokumpunga, ekhanyayo, engenaphunga, efiphele noma emhlophe eba mnyama ngokushesha lapho itholakala ekukhanyeni. I-lithium hydride emsulwa yakha amakristalu angenambala, anombala. Umkhiqizo wezohwebo uqukethe iminonjana yokungcola, isib. insimbi ye-lithium engaphendulwanga, futhi ngenxa yalokho iba mpunga okhanyayo noma oluhlaza okwesibhakabhaka. I-lithium hydride izinzile kakhulu ngokushisa, iyi-hydride ye-ionic kuphela encibilika ngaphandle kokubola ngomfutho womoya (mp 688 ℃). Ngokungafani namanye ama-hydride ensimbi ye-alkali, i-lithium hydride incibilika kancane ezinyibilikisini ze-polar organic ezifana nama-ether. Yakha izingxube ze-eutectic ezinenani elikhulu losawoti. I-lithium hydride izinzile emoyeni owomile kodwa ivutha ngokushisa okuphezulu. Emoyeni omanzi i-hydrolyzed exothermically; izinto ezihlukaniswe kahle zingavutha ngokuzenzakalelayo. Emoyeni oshisayo ophakeme, isabela nomoya-mpilo ukuze yakhe i-lithium oxide, ne-nitrogen ukuze yakhe i-lithium nitride ne-hydrogen, kanye ne-carbon dioxide ukuze yakhe i-lithium formate.
Isicelo
I-lithium hydride isetshenziswa ekwakhiweni kwe-lithium aluminium hydride kanye ne-silane, njenge-ejenti yokunciphisa enamandla, njenge-condensation agent ekwakhiweni kwezinto eziphilayo, njengomthombo ophathekayo we-hydrogen, kanye nezinto zokuvikela i-nuclear ezilula. Manje isetshenziselwa ukugcina amandla okushisa kwezinhlelo zamandla asemkhathini.
I-lithium hydride iyikristalu elimhlophe okwesibhakabhaka elivutha kalula uma linomswakama. Isetshenziswa njengomthombo wegesi ye-hydrogen ekhishwa uma i-LiH iba manzi. I-LiH iyi-desiccant enhle kakhulu kanye ne-reducing agent kanye nesivikelo esivikela emisebeni edalwa ukusabela kwenuzi.
Ukupakisha Nokugcina Izinto
Ukupakisha: 100g/ithini; 500g/ithini; 1kg ngethini; 20kg ngedrama yensimbi
Indawo Yokugcina: Ingagcinwa emathinini ensimbi anesembozo sangaphandle sokuvikela, noma emadromini ensimbi ukuvimbela umonakalo wemishini. Gcina endaweni ehlukile, epholile, eyomile futhi enomoya omuhle, futhi uvimbele umswakama ngokuqinile. Izakhiwo kumele zibe nomoya omuhle futhi zingagcwali igesi.
Ulwazi lokuhamba
Inombolo ye-UN: 1414
Isigaba Sengozi: 4.3
Iqembu Lokupakisha: I
IKHODI YE-HS: 28500090
Imininingwane
| Igama | I-lithium hydride | ||
| I-CAS | 7580-67-8 | ||
| Izinto | Okujwayelekile | Imiphumela | |
| Ukubukeka | Impuphu yekristalu engabonakali mhlophe | Ukuhambisana | |
| Ukuhlolwa, % | ≥99 | 99.1 | |
| Isiphetho | Abafanelekile | ||
