CATION CONFIRMATORY TESTS ADDED REAGENT(S) OBSERVATIONS KSCN Blood red complex K4Fe(CN)6 Prussian blue ppt K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) NVR ANION CONFIRMATORY TESTS ADDED REAGENT(S) OBSERVATIONS (to the ppt) CH3COOH NVR MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 Brown ring

CATION CONFIRMATORY TESTS ADDED REAGENT(S) OBSERVATIONS KSCN Blood red complex K4Fe(CN)6 Prussian blue ppt K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) NVR ANION CONFIRMATORY TESTS ADDED REAGENT(S) OBSERVATIONS (to the ppt) CH3COOH NVR MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 Brown ring

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter9: Atomic Absorption And Atomic Fluorescence Spectrometry

Section: Chapter Questions

Problem 9.6QAP

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Question

CATION CONFIRMATORY TESTS

ADDED REAGENT(S)	OBSERVATIONS
KSCN	Blood red complex
K₄Fe(CN)₆	Prussian blue ppt
K₃Fe(CN)₆	NVR
Na₂C₂O₄	NVR
NaOH (in evaporating dish)	NVR

ANION CONFIRMATORY TESTS

ADDED REAGENT(S)	OBSERVATIONS
(to the ppt) CH₃COOH	NVR
MgCl₂	NVR
6M H₂SO₄, FeSO₄, 18M H₂SO₄	Brown ring

POSSIBLE ION(S) PRESENT?

Select one or more:

Fe³⁺

SO₄^2-

I^-

Zn²⁺

Cu²⁺

PO₄^3-

Ca²⁺

CO₃^2-

SCN^-

Br^-

NO₃^-

NH₄⁺

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