Description

Specification

Grade                                   A.C.S               U.S.P                  Technical Pure

Assay                                                *9.0%***2.0%           *9.0%***1.0%          *9.0%***2.0%

pH at *0°C in 5% aqueous sol.                    6.**7.0                       6.**7.0                        6.**7.0

Insoluble Matter%≤                               0.**5                          0.**5                          0.*5

Chloride(CI) %≤                                    0.***5                        0.**5                          0.*1

Calcium(Ca) %≤                                            0.**5

Magnesium(Mg) %≤                                      0.**5

Potassium(K) %≤                                           0.*1

Iron(Fe) %≤                                                   0.***5                                                           0.***5

Sulfate(SO4) %≤                                            0.**5                          0.*1                                   0.*1

Lead(as Pb) %≤                                 0.**2                          0.**2                          0.**5

Organic Volatile Impurities                                                            To pass test            To pass test

Arsenic(As)ppm≤                                           0.5                              3                                 3