Home › Chemicals › Calcium Chloride CAS 10043-52-4: Calcium Chloride (CaCl2) Identity CAS Number 10043-52-4 Molecular Formula CaCl2 IUPAC Name calcium dichloride Molecular Weight 110.98 g/mol SMILES [Cl-].[Cl-].[Ca+2]Synonyms calcium chloride, calcium dichloride, calcium(II) chloride, CaCl2
2D Structure
Physical Properties Density 2.15 g/mL at 25°C Boiling Point 1935.0°C Melting Point 772.0°C Flash Point None°C Vapor Pressure 0.0 kPa at 20°C Refractive Index nD = 1.52 Dielectric Constant ε = 6.0
Safety & GHS Classification Irritant
H319: Causes serious eye irritation Storage: Store in a cool, dry area. Highly hygroscopic — absorbs moisture from air rapidly. Keep container tightly sealed. Store away from strong bases (exothermic reaction). Use in dry conditions.
Material Compatibility Matrix Plastics Material Rating PTFE Excellent PVC Excellent PE Excellent PP Excellent PEEK Excellent PVDF Excellent
Rubbers Material Rating Viton Excellent NBR Excellent EPDM Excellent Silicone Excellent FKM Excellent
Metals Material Rating Stainless 316 Excellent Aluminum Good Copper Good Brass Good
Applications De-icing and anti-icing agent for roads Drying agent (desiccant) in laboratory Concrete accelerating admixture Food additive (E509 — firming agent) Dust control on unpaved roads Oil well drilling fluid additive Water treatment pH adjuster Refrigeration brine (calcium chloride brine) External References: PubChem
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