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Grade | Pure | Technical |
Apperarence | White Powder | White Powder |
Assay (as NH4CL) | 99% Min | 98% Min |
Iron (as Fe) | 20ppm Max | 500ppm Max |
Insoluable in Water | 0.01% Max | 0.5% Max |
Moisture | 1% Max | 2% Min |
Ph Value (5% Solution) | 4.0 - 5.5 | 4.0 - 5.5 |
Heavy Metal (as Pb) | 5ppm Max | ----- |
Arsenic (as As) | 5ppm Max | ----- |