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• Väävli põlemine sulas kaaliumnitraadis
1. leht 1-st

Väävli põlemine sulas kaaliumnitraadis

Postitatud: 04 Okt 2010, 20:37
Postitas tauri
Pildid on tehtud "100+ katset keemias" video järgi. Detailisema informatsiooni saamiseks vaata .

1. Selles katses näidatakse, kuidas omavahel reageerivad hapnik ja väävel. Esmalt kuumutatakse kaaliumnitraati sulamiseni, seejärel visatakse katseklaasi tükike väävlit.
2KNO2KNO+O
S+OSO
Kuna vääveldioksiid-SO on mürgine gaas, tuleb katse läbi viia tõmbekapis!