Polyaluminum chloride (PACl) is an inorganic polymer coagulant commonly used in water treatment. Its chemical formula is
$$ [AlO_{4}Al_{12}(OH)_{24}(H_{2}O)_{12}]^{7+} $$ |
When mixing a solution for your experiments:
Calculate the volume of lab stock solution required to make the stock for your experiments. (If you don't know what concentration you need to mix for your experiments, consult your team leader.) Use a mass balance to solve for the volume required
$$ C_{LabStock}V_{LabStock}=C_{ExperimentStock}V_{ExperimentStock} $$ |
Where
$$ C_{LabStock} $$ |
$$ V_{LabStock} $$ |
$$ C_{ExperimentStock} $$ |
$$ V_{ExperimentStock} $$ |
USE CLEAN GLASSWARE and GLOVES.
Pipette
$$ V_{LabStock} $$ |
$$ V_{ExperimentStock} $$ |
CLEAN ALL GLASSWARE WITH DISTILLED WATER AND SOAP. Return PACl stock to cabinet and discard gloves to the trash.