How do I make solutions by mixing solid calcium chloride products with water?
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Use cool water! Significant heat is released when dissolving. Add solid
calcium chloride slowly while continuously mixing. If solids are allowed
to sit motionless while in contact with water, a hard cake will form that
will be slow to dissolve.
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The observed temperature increase during dissolving will vary depending
on the conditions associated with each specific application. However, a
rough estimate may be calculated as follows: For DOWFLAKE™ Xtra 83-87% Calcium Chloride Flakes, assume a
temperature increase of 2.8°F per percent increase in concentration. For
PELADOW™ Premier Snow & Ice Melter and Anhydrous Calcium Chloride 94-97% Mini-Pellets, assume 3.2°F
and 3.5°F, respectively, per percent increase in concentration. For example,
when making up a 30% solution from DOWFLAKE™ Xtra 83-87% Calcium Chloride Flakes, the solution temperature
may be expected to increase approximately (30 x 2.8°F) = 84°F.
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A spreadsheet tool is available to determine the amount of dry calcium
chloride to mix with water to achieve solutions of various concentrations. The link is provided below.
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Making Solutions Using Dry Calcium Chloride Products Calculator
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