रवाकरण
(aangrezi:Crystallisation) kisi padarth ko rasayanik abhikriya ya bhautik upachar se ravadar thos banane ki kriya ko ravakaran kahate hai.
- vidhi
rasayan vijnan mean ravakaran vidhi ke dvara akarbanik thos mishran ko alag kiya jata hai. is vidhi mean ashuddh thos mishran ko uchit vilayak ke sath milakar garm kiya jata hai tatha garm avastha mean hi kip dvara chhan liya jata hai. chhanane ke bad vilayan ko kam tap par dhire-dhire thanda kiya jata hai. thanda hone par shuddh padarth rave (kristal) ke roop mean viliyan se prithakh ho jata hai. jaise- sharkara aur namak ke mishran ko ithail alkohal mean 348 kelvin (K) tap par garm kar is vidhi dvara alag kiya jata hai.
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sanbandhit lekh
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