PL36848B1 - - Google Patents
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- Publication number
- PL36848B1 PL36848B1 PL36848A PL3684853A PL36848B1 PL 36848 B1 PL36848 B1 PL 36848B1 PL 36848 A PL36848 A PL 36848A PL 3684853 A PL3684853 A PL 3684853A PL 36848 B1 PL36848 B1 PL 36848B1
- Authority
- PL
- Poland
- Prior art keywords
- cadmium
- weight
- reagent
- parts
- potassium hydroxide
- Prior art date
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 229910052793 cadmium Inorganic materials 0.000 claims description 8
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000276 potassium ferrocyanide Substances 0.000 claims description 2
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- 238000006386 neutralization reaction Methods 0.000 claims 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 240000007651 Rubus glaucus Species 0.000 description 2
- 235000011034 Rubus glaucus Nutrition 0.000 description 2
- 235000009122 Rubus idaeus Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- DYPHJEMAXTWPFB-UHFFFAOYSA-N [K].[Fe] Chemical compound [K].[Fe] DYPHJEMAXTWPFB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940006463 cadmium cation Drugs 0.000 description 1
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- SRRKNRDXURUMPP-UHFFFAOYSA-N sodium disulfide Chemical compound [Na+].[Na+].[S-][S-] SRRKNRDXURUMPP-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Description
Przedmiotem wynalazku jest sposób wykry¬ wania kadmu w stopach, solach i wszelkich zwiazkach i mieszaninach, zawierajacych ten pierwiastek.Sposób wedlug wynalazku sluzy zwlaszcza do jakosciowego stwierdzenia obecnosci kadmu w analizowanej substancji.Dotychczas najczulsza metoda wykrywania kadmu byla metoda siarkowodorowa. Metoda ta mimo swej duzej czulosci byla zmudna i wyma¬ gala usuniecia pierwiastków ewentualnie towa¬ rzyszacych. Poza tym samo stosowanie siarko¬ wodoru czy ewentualnie dwusiarczku sodu bylo przy szybkich i czestych próbach jakosciowych niedogodne, ze wzgledu na zatruwanie powie¬ trza.Stwierdzono, ze charakterystyczna barwna re¬ akcje na kadm uzyskac mozna, nawet przy sla¬ dowych ilosciach tego pierwiastka w stopach lub innych substancjach, niezaleznie od obecno- *) Wlasciciel patentu oswiadczyl, ze twórca wyna¬ lazku jest Marian Krygier. sci pierwiastków zaklócajacych, jak np. rteci, zelaza, cynku, arsenu, antymonu lub innych, gdy do roztworu zawierajacego kadm dodaje sie od¬ czynnika wedlug wynalazku. Odczynnik wedlug wynalazku sklada sie z mieszaniny zelazocyJan¬ ku potasu, octanu miedzi oraz wodorotlenku po¬ tasu, wzietych najkorzystniej w stosunku wa¬ gowym: 3 czesci bezwodnego zelazocyjanku po¬ tasu, 1 czesc octanu miedzi i Vio czesc wodoro¬ tlenku potasu.Przyklad I. W celu wykrycia kadmu w mie¬ szaninie soli, ropuszcza sie ja w wodzie i krople tego roztworu zadaje odczynnikiem o nastepu¬ jacym skladzie 75 czesci 0,025n KiFe (CN)„ 20 czesci 0,05n (CHsCOO)* Cu 5 czesci 0,ln KOH Odczynnik ten posiada barwe czerwonawo-bru- natna, jednakze pod wplywem kationu kadmo¬ wego daje natychmiast charakterystyczne zabar¬ wienie malinowe badanej kropli.Przyklad II. Stop zawierajacy kadm rozpusz¬ cza sie w kwasie, np. azotowym, po czym roz-twór zobojetnia sie i kropla tego roztworu za¬ daje kropla odczynnika. Powstanie charaktery¬ stycznego malinowego zabarwienia pozwala stwierdzic obecnosc kadmu.Reakcja na kation jest bardzo czula i sposób ten moze stanowic podstawe dla kolorymetrycz¬ nego ilosciowego oznaczania tego pierwiastka w substancjach lub stopach. PL
Claims (2)
1. Zastrzezenia patentowe i I. Sposób wykrywania kadmu, znamienny tym. ze roztwór analizowanej substancji po ewen¬ tualnym zobojetnieniu zadaje sie odczynni¬ kiem zawierajacym zelazocyjanek potasu, octan miedzi i wodorotlenek potasu. 2L odczynnik do przeprowadzania sposobu we¬ dlug aastrz. 1, znamienny tym, ze sklada sie z okolo 3 czesci wagowych bezwodnego ze- lazocyjanku potasu, okolo 1 czesci wagowej octanu i okolo 1/io czesci wagowej wodoro¬ tlenku potasu. Bydgoskie Zaklady Przemyslu Gumowego Zastepca: Kolegium Rzeczników Patentowych BKk. 1268 r
2. V. 57 100 B-5 T-13 PL
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL36848B1 true PL36848B1 (pl) | 1954-02-15 |
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