Opbevaringsvæske til pH-elektroder
89,00 kr. (111,25 kr. m/moms)
Natriumhydrogensulfit (100 g)
450,00 kr. (562,50 kr. m/moms)
175,00 kr. (218,75 kr. m/moms)
Stoffet kan bruges i det fine “trafiklyseksperiment” og egner sig godt til både yngre og ældre elever. For gymnasieelever kan forsøget bruges som eksempel på en redoxreaktion og vil helt sikkert vække stor interesse. Brugt som pH-indikator er den blå ved pH < 11,4 og gul ved pH > 13,0. CAS-nummer: 860-22-0 Formel: C16H8N2Na2O8S2 MW: 466,36 g/mol Smeltepunkt: > 300 °C Opbevaringstemperatur: Stuetemperatur
Tilgængelig på restordre|Forventet leveringstid (dage): 7
Varenr.: 811350
Synonymer: Indigo, karmin, indigokarmin, 837008
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