Qualitative Chemical Analysis : a Guide in the Practical Study of Chemistry And in the Work of Analysis
Qualitative Chemical Analysis : a Guide in the Practical Study of Chemistry And in the Work of Analysis
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To quickly assess the difficulty of the text, read a short excerpt:
Nitric and chloric acids give red color with potassium thiocyanate, re- moved by heat.
• The quantity of non-dissociated FeCCKS), , to which the color Is duo, is increased by an ex- cess of either of the products of the dissociation. The test for Iron is therefore more delicate If considerable KCNS is added. The decoloration by H^Cl, is due to the breaking up of the Fe(C!l8) J to form Hg(CN8)a which is even less dissociated in water solution than HgCl, .
156 IROS. §126, 6r.
(a) FeCla + 3KCN -h ...3H,0 = re(OH), + 3KC1 + 3HCN (6) reSO, + K^e(CN)e = KJFere(CN), -f K^SO, (c) K,Fere(CN), + 2K0H = re(OH), -f K^FeCCN), (d) 4K;FeFe(CN), + O, + 4HC1 = Fe,(Fe(CN)e), + K,Fe(CN)e + 4KC1 + 2H,0 (c) 4FeCl, + :5K,Fe(CN)e = Fe,(Fe(CK),), + 12KC1 (f) Fe,(Fe(CN),), + 12K0H = 4Fe(0H), + 3K,Fe(CN), {g) 3FeS0« + 2K,Fe(CN)« =Fe,(Fe(CN)«), + SK^O, {h) Fe,(Fe(CN),), + 6K0H = 3Fe(0H)= + 2K,Fe(CN)e (I) FeCl, + K,Fe(CN), = FoFe(CN)« + nKCl (/) Feci, + 3KCNS = Fe(CNS), + 3KC1 (A-) 2Fe(CNS), + 3HgCl, = 3Hg(Cire)2 + 2FeCl.
What to read after Qualitative Chemical Analysis : a Guide in the Practical Study of Chemistry And in the Work of Analysis?
You can find similar books in the "Read Also" column, or choose other free books by A B Albert Benjamin Prescott to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Nitric and chloric acids give red color with potassium thiocyanate, re- moved by heat.
• The quantity of non-dissociated FeCCKS), , to which the color Is duo, is increased by an ex- cess of either of the products of the dissociation. The test for Iron is therefore more delicate If considerable KCNS is added. The decoloration by H^Cl, is due to the breaking up of the Fe(C!l8) J to form Hg(CN8)a which is even less dissociated in water solution than HgCl, .
156 IROS. §126, 6r.
(a) FeCla + 3KCN -h ...3H,0 = re(OH), + 3KC1 + 3HCN (6) reSO, + K^e(CN)e = KJFere(CN), -f K^SO, (c) K,Fere(CN), + 2K0H = re(OH), -f K^FeCCN), (d) 4K;FeFe(CN), + O, + 4HC1 = Fe,(Fe(CN)e), + K,Fe(CN)e + 4KC1 + 2H,0 (c) 4FeCl, + :5K,Fe(CN)e = Fe,(Fe(CK),), + 12KC1 (f) Fe,(Fe(CN),), + 12K0H = 4Fe(0H), + 3K,Fe(CN), {g) 3FeS0« + 2K,Fe(CN)« =Fe,(Fe(CN)«), + SK^O, {h) Fe,(Fe(CN),), + 6K0H = 3Fe(0H)= + 2K,Fe(CN)e (I) FeCl, + K,Fe(CN), = FoFe(CN)« + nKCl (/) Feci, + 3KCNS = Fe(CNS), + 3KC1 (A-) 2Fe(CNS), + 3HgCl, = 3Hg(Cire)2 + 2FeCl.
What to read after Qualitative Chemical Analysis : a Guide in the Practical Study of Chemistry And in the Work of Analysis?
You can find similar books in the "Read Also" column, or choose other free books by A B Albert Benjamin Prescott to read onlineMoreLess
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