| ≥1 piece |
|
Check item |
Specifications |
Check conclusion |
|
含量(Content) % |
≥99.0 |
99.36 |
|
水分(Loss on drying) % |
≤5 |
4.1 |
|
PH(1% Solution ) % |
7.0-10.0 |
7.5 |
|
重金属(Heavy metals as pb ) % |
≤0.001 |
<0.001 |
|
游离酸(Free acid) % |
≤0.3 |
-- |
|
砷(As ) % |
≤0.0003 |
0.0001 |
|
游离碱(Free alkalinity) % |
≤0.15 |
-- |
|
氟化物(Fluorides) % |
≤0.003 |
0.002 |
|
钙(Calcium) % |
20-22% |
21.5 |