Index Name
Standard
Appearance
White crystal
Content (C
7
H
6
O
6
S•2H
2
O),≥ %
97
Sensibility test to Fe
OK
Clarity test
OK
Water Insoluble Matter ≤ %
0.01
Residue On Ignition(SO4) ≤ %
0.05
Chloride %
0.005
Sulfate %
0.5
Fe %
0.005
Heavy Metal(Pb) ≤ %
0.002
salicylic acid (C
7
H
6
O
3
), ≤ %
0.2
I.D.:
P.W.:
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