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    2020-I-Marcha Sistematica I-Ii-Iii

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    AdrianQuispe
    This document outlines the systematic analytical march of cation mixtures from groups I, II and III. It describes the sequential precipitation and identification of cations using reagents such as HCl, (NH4)2SO4, NaOH, K2CrO4, AgNO3, HNO3, NH4OH, DMG, K4Fe(CN)6, NH4SCN, and others. The cations are separated into groups and identified by color changes induced by the different reagents, resulting in the systematic separation and identification of the original cation mixture.

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    2020-I-Marcha Sistematica I-Ii-Iii

    Uploaded by

    AdrianQuispe
    9 views2 pages
    This document outlines the systematic analytical march of cation mixtures from groups I, II and III. It describes the sequential precipitation and identification of cations using reagents such as HCl, (NH4)2SO4, NaOH, K2CrO4, AgNO3, HNO3, NH4OH, DMG, K4Fe(CN)6, NH4SCN, and others. The cations are separated into groups and identified by color changes induced by the different reagents, resulting in the systematic separation and identification of the original cation mixture.

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    Original Title

    2020-I-MARCHA SISTEMATICA I-II-III

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    This document outlines the systematic analytical march of cation mixtures from groups I, II and III. It describes the sequential precipitation and identification of cations using reagents such as HCl, (NH4)2SO4, NaOH, K2CrO4, AgNO3, HNO3, NH4OH, DMG, K4Fe(CN)6, NH4SCN, and others. The cations are separated into groups and identified by color changes induced by the different reagents, resulting in the systematic separation and identification of the original cation mixture.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    9 views2 pages

    2020-I-Marcha Sistematica I-Ii-Iii

    Uploaded by

    AdrianQuispe
    This document outlines the systematic analytical march of cation mixtures from groups I, II and III. It describes the sequential precipitation and identification of cations using reagents such as HCl, (NH4)2SO4, NaOH, K2CrO4, AgNO3, HNO3, NH4OH, DMG, K4Fe(CN)6, NH4SCN, and others. The cations are separated into groups and identified by color changes induced by the different reagents, resulting in the systematic separation and identification of the original cation mixture.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    MARCHA SISTEMATICA ANALITICA DE CATIONES MEZCLA DE GRUPOS I, II y III

    Ag+, Pb2+, Hg22+,Hg2+,Cu2+ ,Cd2+ , Bi3+ , Sn2+ , Sb3+ , Fe2+ , Fe3+ , Mn2+ , Al3+ , Cr3+ , Zn2+ , Ni2+ , Co2+

    + HCl (centrifugar)

    AgCl , Hg2Cl2 , PbCl2 Pb2+ ,Cr3+ , Zn2+ , Ni2+ , Co3+ , Cu2+ , Cd2+ , Bi3+ , Sn4+ , Sb3+ , Mn2+ , Fe3+, Al3+
    + +
    H2O + C (NH4)2SO4 + Calor (descartar Pb2+)
    centrifugar Desechar pp. si centrifugar
    hubiera
    PbSO4 Fe3+ , Al3+ , Cr3+ , Sn4+ , Sb3+ , Bi3+
    2+
    AgCl , Hg2Cl2 Pb BLANCO Cu2+ , Cd2+ , Mn2+ , Zn2+ , Ni2+ , Co3+
    + + +NaOH (b)+ (exceso) + H2O2 (3 gotas) + calor
    NH4OH K2CrO4
    centrifugar
    SnO3=, SbO2- , ZnO2= , AlO2 - ,CrO42-
    HgNH2Cl , Hgo Ag(NH3)2Cl PbCrO4 CuO , Cd(OH)2 , MnO2 , Fe(OH)3 + HNO3 (a) + H2O2 (hasta disolver todo) + HCl (a)
    (GRIS) + AMARILLO Bi(OH)3 , Co(OH)3, Ni(OH)2 centrifugar
    2+ + NH 4OH (b)+ NH4Cl + C
    (6M)
    +Agua regia HNO3 Pb
    Fe3+ , Bi3+, Cu2+ , Cd2+ , Mn2+ , Ni2+ , Co3+
    (disolver) Sn(OH)4 , Sb(OH)3 , Al(OH)3 Zn(NH3)42+ , CrO42-
    + AgCl HCl
    SnCl2 BLANCO NH4OH (b) (exceso)
    +
    Ag Sb3+ Al3+
    centrifugar Sn4+ + Pb2+ Zn(NH3)4+2
    + +
    Hg2Cl2 o
    +Fe + C +
    BLANCO HCl + KNO2 NH4OH CH3COOH
    Ni(NH3)62+, Co(NH3)63+, PbCrO4
    Hg2
    +
    Bi(OH)3 , Mn(OH)2 , Fe(OH)3 Cu(NH3)42+, Cd(NH3)4 2+
    + + + AMARILLO +
    HgCl2 Rodamina CH3COONH4 K4Fe(CN)6
    + HNO3 (a) (exceso) ( disolver) + CH3COOH +
    (NH4)2CO3
    BLANCO
    3+ + + Aluminón
    Bi3+ Mn2+ + C Fe 2+ 2+ 2+
    Co2+ Sn2 BLANCO
    Cd Cu Ni VERDOSO
    + + HNO3 + + + + Zn2+
    NaOH + NaBiO3 αnβn (VIOLETA)
    NH4SCN K4Fe(CN)6 KCN K4Fe(CN)6 NH4OH
    Sb3+ (LACA
    + + DMG
    (NH4)2S ROJA)
    Bi (OH)3
    + (VIOLETA) (ROJO (AZUL) (MARRÓN (MARRON) Al3+
    Na2SnO2 Mn2+ SANGRE) Fe3+ ROJIZO) Co2+
    Fe 3+
    Cu2+ (ROJO)
    Ni2+
    (NEGRO CdS
    )Bi3+ (AMARILLO)
    Cd2+

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