Tayadda potassium

xarunta tayadda potassium waa nooc crystal singonicheskoy oo aan midab. barta barafku ay u dhigmaa 948 ° C, marka cufnaanta walax gaar ah 1,805 g / cm3 ah (cufnaanta lagu wadaa heerkulka caadiga ah 14 ° C). kiristaalo waa diyaar L. in xal aqueous oo ay leeyihiin hygroscopicity sare. Intaa waxaa dheer, tayadda potassium waa hydrolyzed, L. in glycerol iyo ethanol. Marka lalana iyaga la inta lagu jiro dareen diidmo ka sameeyay dihydrates iyo topotecan matalaya kiristaalo midab, lagu gartaa qiimaha H0obr, siday u kala horreeyaan, iyo -984,5 -1880,0 KJ / mol.

maalkiisu waa mid aad u fudud in la furo qayilo hawada, oon la xirrira K2S2O3, waxaana la sii daayay inta lagu guda jiro SO2 sari. tayadda potassium loo diyaariyey, kuwaas oo K2S formula, K2CO3 ficil leh baaruud, sidaas waxaa lagama maarmaan ah si ay u bixiyaan dareen-celin waayo, marka laga reebo loogasoo hawada. Waxaa suurto gal ah si aad u hesho walax iyo falcelin hoos u, carbon simaha on K2SO4 cusbo.

tayadda potassium waxaa si balaadhan looga isticmaalaa sida qayb muhiim ah in emulsion iyo blaastiigga warshadaha ee photosensitive iyo sawiro. In kiimikada soo saarta ay codsi ku salaysan awood u leh inay u dhaqmaan reagent fulinta kala sulfides biraha kala duwan. Isticmaal in dhar iyo maqaar warshadaha ka kooban yahay in potassium mid noqoshada tayadda ee hab ee daaweynta aasaasiga ah ee maqaar.

In hydrosulfide ama polysulfide wax KHS ah waxaa loo isticmaalay in teknoolajiyada sulfiding Alloys Ferro, bir iyo bir tuuray. Waxaa si weyn loo isticmaalaa in soo saaridda ee medicaments oo lagu daweeyo xanuunada kala duwan oo maqaarka. Beeraha tayadda potassium shaqo - isticmaalka sida sunta cayayaanka.

Sida caadiga ah, tayadda potassium waa hab caddaalad ah oo fudud. Si taas isku qasan lime deg deg ah la baaruud iyo carbonate potassium. Isku dar ah Tani waxay ka dibna kala diri ee biyaha iyo la karkariyey dhowr saacadood. Sidaas darteed nidaamka this waxaa la aasaasay polysulfide potassium. Markaas, ka xalka keentay iyada oo filter a saaro dadajin carbonate calcium, iyo xalka la uumibixiyey laftiisa in inta aan la gaadhin miisaanka gaarka ah ee 1.25-1.30. Ugu dambeyntii, xalka waxaa sii admixed leh qadar yar oo ah baaruud, mar kululeeyo, iyo ka dib qaboojinta loo daadshay.

formation tayadda potassium dhacaa tiro, laakiin socodka sida cadaanyo waa lagama maarmaan si ay u bixiyaan uumi aad u gaabis ah uumiga NH3 tuubo taas oo ah waa pre-buuxsami hydroxide potassium. Sidaas darteed, ficil-celinta waa in la fuliyaa si sax ah u siin Biyuhu xal ammonia iyo soo dadajin cad taas oo tayadda potassium.

Qoraalkani wuxuu ku keentay jiray waqti halkii dheer lagama maarmaan ah in lisidda soo baxay bamka ah saliid gaar ah, ka dibna la calcined heerkulka a of 400-500 ° C. Sida caadiga ah, ka dib markii in ka kiristaalo helay ayaa isuku soo nitrogen daahirsamay tuubooyinka imtixaanka ee vacuo.

The keentay disulfide potassium hydrolysis waa budo ah midab huruud ah, oo ay formula - K2S2. Miisaanka uu leeyahay walax kelli waa 142,327 AMU At heerkul ah 477 ° C disulphide bilaabaa inuu dhalaalin iyo 600 ° C waxa decomposes.

tayadda potassium waa jawaabay walxaha kala duwan. Tusaale ahaan, ku dul reaction la halides alkyl aasaasiga ah waxaa laga heli by sulfides dialkyl symmetrical. Sidoo kale xal isku dhafan ee tayadda potassium xalal kala duwan (gaar ahaan - hromokalievyh iyo potash) alum.

Ujeedooyinka caafimaadka tayadda potassium ee khayroon daahirnimo sare. In warshadaha ayaa waxa la soo bandhigay by dhuxul kala duwan, kuwaas oo ay diyaar u yihiin ka dar ah ee walax laftiisa, ay hydroxide iyo baaruud. Daarida dhuxusha caafimaad dhacdaa Foornooyinka gaar ah heerkulka a ma ka hooseeya 800 - 900 ° C. Markaas ka saarista xeryahooda baaruud iyo dhaqay of ra'iyi chlorine waa Aashito.