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ANTIFRIZ

antifrizANTIFRIZ (az anti… va angl. freeze – yakh bastan), mahluli obii baze moddaho, ki az sarmo yakh namebandad. A.-ro zimiston ba sistemai sardonii muharriki darunsuz merezand. Baroi sistemai sardonii muharrikhoi darunsuz istifodai A.-hoe, ki dar tarkibashon etilenglikol, obu spirt, obu glitserin, mahluli baze namakhoi gayriorganiki va g. dorand, muvofiqtar ast. A.-ro inchunin baroi yakh nabastani oinai moshin niz istifoda mebarand.
A.-e, ki az omekhtai etilenglikol va ob iborat ast, beshtar istifoda meshavad. Etilenglikol moei chaspaki berangu buy buda, haror. jushishash 197,4° ast. Dar sanoat du navi A.-i etilenglikoli (40 va 65; raqamho haror. yakhbandii onhoro nishon medihand) istehsol meshavad. A.-i etilenglikolii 40 az 53% etilenglikol va 47% ob, A.-i etilenglikolii 65 boshad, az 65% etilenglikol va 35% ob iborat ast.
A.-i etilenglikoli zahr buda, metallu rezinaro vayron mekunad. Baroi peshgiri namudani in holat ba chunin A.-ho moddahoi makhsus hamroh menamoyand. Hangomi sarukor doshtan bo A. ehtiyot boyad shud. Bo dahon tavassuti rudahoi rezini berun kashidani A. metavonad boisi zahroludi va hatto marg gardad. Kushidan lozim, ki A. ba pust narasad. Dar mavridi ba muharrik rekhtani A. az dastpushaki rezini istifoda kardan lozim ast.
Hangomi zahroludi az A. sistemai asabhoi markazi, gurdaho va jigar oseb meyoband. Bo maqsadi peshgirii zahroludi ba qoidahoi bekhatari rioya kardan lozim ast. Dar rui zarfe, ki A. nigoh doshta shudaast, boyad «Zahr» navisht.

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