Polyaluminum chloride (PAC) | ||
Indicator name | National standard (China) | Company product standards |
The mass fraction of alumina (in AI2O3)/% | 28 | 28.5 |
Salinity/% | 30-95 | 60-90 |
Mass fraction of insoluble matter/%≤ | 0.4 | 0.3 |
Ph(10g/L aqueous solution) | 3.5-5.0 | 3.5-5.0 |
Mass fraction of ferric (Fe)/%≤ | 3.5 | 1.5-3.5 |
The mass fraction of arsenic (As)/%≤ | 0.0005 | 0.0005 |
The mass fraction of lead (Pb)/%≤ | 0.002 | 0.002 |
Mass fraction of cadmium (Cd)/%≤ | 0.001 | 0.001 |
Mass fraction of mercury (Hg)/%≤ | 0.00005 | 0.00005 |
The mass fraction of chromium (Cr)/%≤ | 0.005 | 0.005 |
Note: The mass fractions of insolubles, ferric, arsenic, lead, cadmium, and chromium of the products listed in the table refer to the product content of Al2O310%. When the Al2O3 content is less than 10%, the corresponding mass fraction should be calculated according to the actual content converted into the proportion of Al2O310% products. | ||