Calcium chloride, CaCl2,
is a common salt. It behaves as a typical ionic halide, and is
solid at room temperature. It has several common applications such
as brine for refrigeration plants, ice and dust control on roads,
and in concrete. It can be produced directly from limestone, but
large amounts are also produced as a by-product of the Solvay
process. Because of its hygroscopic nature, it must be kept in
tightly-sealed containers. It is used to turn kelp into a
solid.
4) Usage:1.Used in highway, expressway, parking lot and port and as
a dryer to dry nitrogen, oxygen, hydrogen, hydrogen chloride and
sulfur dioxide etc. 2. Act as dehydration agent when producing
alcohol, ester, ether and acrylic acid. 3. Calcium chloride is a
kind of important cryogen used by freezing machine and when making
ice. 4. It can increase hardness of concrete and increase cold
resistance ability of the construction. 5. In port, acts as fog
removing agent and dust collecting agent on road and fireproof
agent of textile and acts as a protective agent and refining agent
used in aluminum magnesium metallurgy. 6. Act as precipitator in
producing lake paint. It is a kind of raw material of producing
calcium salt. In algae sodium and bean industry it acts as
flocculation.
