NINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD.
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|
Assay(%) |
99.0-101 |
|
Heavy metal (as Pb |
≤20ppm |
|
Loss on drying (%) |
≤0.5 |
|
Melting point Deg.C |
128-131 |
|
Readily carbonizable substances |
Past test |
|
pH value (5% water solution) |
6.0-7.5 |
|
Residue on ignition (%) |
≤0.1 |