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Impurities content (weight %) | |
---|---|
Insoluble in water substances | <0.005 |
Total Nitrogen (N) | not standardized |
Iodides и Iodine (l- + l2) | <0.002 |
Sulfates (SO42-) | <0.005 |
Chlorates + chlorides + bromides (ClO3- + Cl- + Br-) | <0.02 |
Iron (Fe2+) | <0.001 |
Sodium (Na+) | not standardized |
Heavy metals (Pb2+) | <0.001 |
pH of 5% water solution | 5,0 - 8,0 |