ITEM | SPECIFICATION | TEST RESULT |
NH4CL CONTENT(DRY BASIS): | 99.5%MIN | 99.54% |
DRYING G/100G ≤ | 0.5%MAX | 0.1% |
RESIDUE AFTER IGNITION: | 0.4%MAX | 0.09% |
IRON CONTENT(AS FE): | 0.0005%MAX | 0.0003% |
HEAVY METALS(AS PB): | 0.0005%MAX | <0.0005% |
Cadmium (AS Cr) | 0.0001%MAX | 0.0001% |
FE | 0.0007%MAX | 0.00033% |
PH VALUE (200G/L SOLUTION,TEMPERATURE 25℃): | 4.0-5.8 | 5.19 |
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