Amonio Metatungstate Tungsteno

Grado		AMT-1A	AMT-2A
		AMT-1B	AMT-2B
		AMT-1C	AMT-2C
Pureza mín.(%)		99.95	99.90
Principal Comp WO3 MIN.(%)		83.0	83.0
Contenido del elemento químico Otros Max.(%)	Al	0.001	0.001
	As	0.001	0.001
	Bi	0.0001	0.0001
	Ca	0.001	0.003
	Cr	0.001	0.001
	Cu	0.001	0.003
	Fe	0.002	0.003
	K	0.0015	0.002
	Mg	0.001	0.002
	Mn	0.001	0.001
	Mo	0.005	0.01
	Na	0.0015	0.002
	Ni	0.001	0.001
	P	0.001	0.003
	Pb	0.0001	0.0001
	S	0.0005	0.001
	Sb	0.001	0.002
	Si	0.001	0.002
	Sn	0.0001	0.0003
	Ti	0.001	0.002
	V	0.001	0.002
Matter Undissolved in Water Max		0.5	0.5
PH Value		3.0-4.5	3.0-4.5

Aspecto: Polvo blanco o amarillo claro crytallized.