Synonyms: Calcium Chloride Dihydrate
CAS No.: 10043-52-4 (Anhydrous); 10035-04-8 (Dihydrate)
Molecular Weight: 147.01
Chemical Formula: CaCl2 . 2H2O
J.T. Baker: 1332, 1335, 1336, 5566, 5831
Mallinckrodt: 3191, 3620, 4113, 4160, 4616, 4836, 4842, 4866, 6006, 7722
Physical and Chemical Properties
Appearance: Coarse white powder or mixture of coarse white powder and medium sized granules.
Solubility: Freely soluble in water with heat liberation.
pH: 8 - 9 Aqueous solution
% Volatiles by volume @ 21C (70F):
Boiling Point: > 1600C (> 2912F)
Melting Point: ca. 260C (ca. 500F)
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.
Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Moist calcium chloride and concentrated solutions can corrode steel. When exposed to the atmosphere, calcium chloride will absorb water and form a solution. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Stability and Reactivity
Stable under ordinary conditions of use and storage. Substance will pick up moisture from the air and go into solution if exposed in open containers.
Hazardous Decomposition Products:
Emits toxic chlorine fumes when heated to decomposition. May form hydrogen chloride in presence of sulfuric or phosphoric acids or with water at elevated temperatures.
Will not occur.
Methyl vinyl ether, water, zinc, bromine trifluoride, mixtures of lime and boric acid, barium chloride, and 2-furan percarboxylic acid. Metals will slowly corrode in aqueous calcium chloride solutions. Aluminum (and alloys) and yellow brass will be attacked by calcium chloride.
Conditions to Avoid:
Calcium Chloride Dihydrate technic guide line: