Sixirka Naadirka ah ee Dhulka: Lanthanum Oxide

Lanthanum oxide,caanaha molecularLa2O3, miisaanka kelli 325.8091. Inta badan loo isticmaalo soo saarista muraayadaha indhaha ee saxda ah iyo fiilooyinka indhaha.

Hantida kiimikada

Waxoogaa ku milmay biyaha oo si fudud ugu milmi asiidh si ay u sameeyaan milix u dhigma.

Marka loo eego hawada, way fududahay in la nuugo kaarboon laba ogsaydh iyo biyo, si tartiib tartiib ah isu beddela carbonate lanthanum.

Gubashadalanthanum oxideku daraa biyaha si ay u sii daayaan xaddi badan oo kulayl ah.

hanti jireed

Muuqaalka iyo sifooyinka: Budada adag ee cad.

Cufnaanta: 6.51 g/ml at 25 ° C

Barta dhalaalka: 2315 ° C, barta karkarinta: 4200 ° C

Solubility: Waxay ku milmaan asiidhyada iyo ammonium chloride, oo aan lagu milmi karin biyaha iyo ketones.

Habka wax soo saarka

1. Walxaha ceeriin ee habka soo saarista waa xal naadir ah oo dhulka ku jira ka saarista cerium ka dib, kaas oo ka kooban ku dhawaad ​​50% La2O3, cadadka raad ee CeO2, 116-7% Pr6O5, iyo 30% Nd2O3. Isku darka Σ Xalka nitrate-ka dhulka naadir ah oo leh 320-330g/L ee RxOy ayaa laga soo saaray oo laga soocay dhulal kale oo naadir ah iyadoo la adeegsanayo soosaaraha fosfine dhexdhexaad ah, dimethyl heptyl methylphosphonate (P350), ee nidaamka P350 kerosene ee heerarka 35-38 soosaarid. Xalka haraaga ah ee ka kooban lanthanum waxaa lagu dhex milmay ammonia, lagu shubay oxalic acid, ka dibna la sifeeyay oo la gubay si loo helo badeeco dhammaatay oo ah lanthanum oxide. Laga soo saaray lanthanum phosphate cerium ore ama lagu diyaariyey gubanaya lanthanum carbonate ama nitrate. Waxa kale oo lagu heli karaa kululaynta iyo kala-goynta oxalate of lanthanum.

2. Ku rid La (OH) 3 oo ku rid weel platinum ah, ku engegan 200 ℃, ku gub 500 ℃, oo qudhmi in ka badan 840 ℃ si aad u hesho lanthanum oxide.

Codsiga

Inta badan loo isticmaalo soo saarista muraayadaha indhaha ee saxda ah iyo fiilooyinka indhaha. Sidoo kale loo isticmaalo warshadaha elektiroonigga ah sida capacitors dhoobada iyo wax lagu daro dhoobada piezoelectric. Waxa kale oo loo isticmaalaa sida walxo ceeriin ah oo loogu talagalay soo saarista borate lanthanum iyo kicinta kala saarista iyo sifaynta batroolka.

Goobta Codsiga: Inta badan waxaa loo isticmaalaa in lagu soo saaro muraayadaha indhaha ee saxda ah ee daawaha ah, looxa fiber indhaha ee sare leh, oo ku habboon samaynta kamaradaha, kamaradaha, muraayadaha mikroskoob, iyo prisms ee qalabyada horumarsan. Waxa kale oo loo isticmaalaa soo saarida capacitors dhoobada, piezoelectric dopants dhoobada, iyo qalabka luminescent raajada sidalanthanum bromidebudo. Laga soosaaray lanthanum phosphate cerium ore ama laga helay gubasho lanthanum carbonate ama nitrate. Waxa kale oo lagu heli karaa kululaynta iyo kala-goynta oxalate of lanthanum. Loo isticmaalo kicinta falcelinno kala duwan, sida oksaydhka karbon monoxide marka lagu daro cadmium oxide, iyo hydrogenation katalytic ee carbon monoxide ilaa methane marka lagu daro palladium. Lanthanum oxide oo lagu dhex milmay lithium oxide ama zirconia (1%) ayaa loo isticmaali karaa in lagu soo saaro birlabyada ferrite. Waa soo-dooriye wax-ku-ool ah oo wax-ku-ool ah oo dooriya isku-xidhka oksaydhka ee methane si loo soo saaro ethane iyo ethylene. Waxaa loo isticmaalaa in lagu wanaajiyo ku tiirsanaanta heerkulka iyo sifooyinka dielectric ee barium titanate (BaTiO3) iyo strontium titanate (SrTiO3) ferroelectrics, iyo sidoo kale in lagu soo saaro qalabka fiber optic iyo muraayadaha indhaha.