USD $10.00-10.00 / Kilogram
1.industrial grade technical parameters:
testing programme | national standard | ||
top grade | first grade | qualified products | |
total alkali content (calculated as nahco3), % | ≥99.5 | ≥99 | ≥98.5 |
loss on drying ,% | ≤0.10 | ≤0.15 | ≤0.2 |
ph value(10g/l) | ≤8.3 | ≤8.5 | ≤8.7 |
chloride (in cl),% | ≤0.1 | ≤0.2 | ≤0.5 |
iron content (in fe),% | ≤0.001 | ≤0.002 | ≤0.005 |
water insoluble matter, % | ≤0.01 | ≤0.02 | ≤0.05 |
sulfate content(in so4) | ≤0.02 | ≤0.05 | ≤0.5 |
calcium content,% | ≤0.03 | ≤0.03 | ≤0.05 |
arsenic (as),% | ≤0.0001 | ||
heavy metal content (in pb),% | ≤0.0005 |
testing programme | national standard | ||
top grade | first grade | qualified products | |
total alkali content (calculated as nahco3), % | ≥99.5 | ≥99 | ≥98.5 |
loss on drying ,% | ≤0.10 | ≤0.15 | ≤0.2 |
ph value(10g/l) | ≤8.3 | ≤8.5 | ≤8.7 |
chloride (in cl),% | ≤0.1 | ≤0.2 | ≤0.5 |
iron content (in fe),% | ≤0.001 | ≤0.002 | ≤0.005 |
water insoluble matter, % | ≤0.01 | ≤0.02 | ≤0.05 |
sulfate content(in so4) | ≤0.02 | ≤0.05 | ≤0.5 |
calcium content,% | ≤0.03 | ≤0.03 | ≤0.05 |
arsenic (as),% | ≤0.0001 | ||
heavy metal content (in pb),% | ≤0.0005 |