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Calcium chloride anhydrous

CAS No.: 10043-52-4

  • Molecular Formula: CaCl₂
  • Molecular Weight: 110.98 g/mol

Chemical type

  • Inorganic salt (anhydrous)
[1]
  • Inorganic hygroscopic salt
[2]

Key properties

  • Cross-linking agent for polysaccharides
  • Influences porosity and compressive strength (higher concentrations lead to compact structure)
  • Used in concentrations of 5-20 wt% to tune properties
  • Affects moisture adsorption and latent heat balance in composites
[1]
  • Purity 94-97% (anhydrous mini pellets), forms expansive phases like calcium oxychloride (CAOXY) at concentrations ≥13.6%, promotes physical degradation during freezing (13.6% solution) and chemical attack during wetting (21.9% solution), pH 6.0-8.0, exacerbates frost damage and corrosion
[2]
  • Cross-linking agent to form calcium alginate from sodium alginate
  • Prepares gel microspheres via dripping method
  • Optimizes HPCC properties (e.g., 15 wt% for balanced latent heat, conductivity, and adsorption)
[1]
  • De-icing salt for transportation infrastructure; used in testing to simulate aggressive combined exposures (freeze-thaw, wet-dry, carbonation) leading to complex concrete degradation
[2]

Classification by use

  • Cross-linking agents
  • Inorganic reagents in gel synthesis
  • Additives for material property tuning
[1]
  • De-icers for cold-region pavements and bridges
  • Chemical aggressors in durability testing of construction materials
[2]

A trustworthy factory and manufacturer

  1. [Cite:1] Study on synthesis and hygrothermal performance of calcium alginate-based moisture-adsorbing phase change composite, Next Materials, Volume 10, January 2026, 101401
  2. [Cite:2] Performance of nano-modified silica, alumina, and titania concrete coatings under combined cyclic environments, carbonation, and calcium chloride, Case Studies in Construction Materials, Volume 23, December 2025, e05612