Insoluble Content, Ionic Composition, Density, and X-Ray Diffraction Spectra of 6 Evaporites from Niger Republic

Table 2

pH and percentage of insoluble and some ions in the samples studied.

Samples	pH	Insoluble (%)	Na^+ (%)	K^+ (%)	Fe^2+ (%)	Mg^2+ (%)	Cl^− (%)	(%)	(%)
A	9.85	1.285	15.251	0.775	0.0057	0.00001	5.282	0.26	69.387
B	8.60	36.64	14.100	2.750	0.0032	0.000043	11.526	3.41	5.846
D	9.75	7.18	19.220	0.412	0.0046	0.00028	20.062	1.71	51.408
N	9.90	1.40	14.375	0.787	0.0084	0	4.441	0.46	66.084
X	7.00	14.29	21.500	0.091	0.0048	0.000402	63.062	0.04	1.271
Z	9.90	24.47	13.750	2.875	0.0044	0	10.767	0.165	44.479