članak: 1 od 1  
Hemijska industrija
2003, vol. 57, br. 1, str. 9-14
jezik rada: srpski
naučni članak
doi:10.2298/HEMIND0301009B
Određivanje koeficijenta difuzije nekih organskih visokotoksičnih supstanci pomoću difuzione cevi
Bastić Jelenaa, Skala Dejan U.b, Ivanović Slavicaa
aVojnotehnički institut VJ, 11000 Beograd, Katanićeva 15
bUniverzitet u Beogradu, Tehnološko-metalurški fakultet

Sažetak

Opisan je postupak određivanja koeficijenata difuzije (D) cijanovodonika (HCN) i 2-bromo-2-hloro-1,1,1-trifluoroetana (halotana) u vazduhu, merenjem brzine difuzije (R) odgovarajuće supstance iz difuzione cevi (DC) na određenoj temperaturi. DC je termostatirana na određenoj temperaturi (+0,5°C) i brzina difuzije određivana merenjem promene mase DC u određenom vremenskom intervalu. Eksperimentalno određene vrednosti koeficijenta difuzije na određenim temperaturama korelisane su sa odgovarajućim teorijski izračunatim vrednostima.

Ključne reči

difuzija; cijanovodonik; halotan; difuziona cev; određivanje

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