Calcium chloride
CAS 10043-52-4
EC 233-140-8
Formula CaCl2
MW 110.98 g/mol
Salts & Minerals Water TreatmentFood & NutritionAgriculture & FeedOil, Gas & EnergyBuilding & Construction Flame RetardancyPreservation & BiocidepH Regulation & BufferingCatalysis
Description
Calcium chloride (CaCl2, CAS 10043-52-4) is an inorganic salt commercially available under trade names including Liquidow, Dowflake, Daraccel, Calcosan, and Stopit. It carries no E-number designation and is classified under HS code 28272000 within the salts and minerals category.
In water treatment, calcium chloride raises hardness levels and stabilises pH by buffering alkalinity, preventing pipe corrosion. In oil and gas drilling, it functions as a completion fluid and brine weighting agent, controlling wellbore pressure. In construction, it accelerates cement hydration as a concrete additive, shortening set times in cold-weather conditions.
Calcium chloride is supplied in anhydrous, dihydrate, and liquid solution grades, with specifications available to FCC (food contact), Ph.Eur. (pharmaceutical), and REACH-compliant standards for EU market supply. Typical packaging includes 25 kg bags, bulk bags, and liquid tanker formats depending on grade and application requirements.
In water treatment, calcium chloride raises hardness levels and stabilises pH by buffering alkalinity, preventing pipe corrosion. In oil and gas drilling, it functions as a completion fluid and brine weighting agent, controlling wellbore pressure. In construction, it accelerates cement hydration as a concrete additive, shortening set times in cold-weather conditions.
Calcium chloride is supplied in anhydrous, dihydrate, and liquid solution grades, with specifications available to FCC (food contact), Ph.Eur. (pharmaceutical), and REACH-compliant standards for EU market supply. Typical packaging includes 25 kg bags, bulk bags, and liquid tanker formats depending on grade and application requirements.
Physical Properties
| Melting Point | 772 °C |
| Boiling Point | 1935 °C |
| Density | 2.152 g/cm³ @ Temp: 15 °C |
| Flash Point | >1600°C |
| Appearance | Calcium chloride is a colorless to off-white crystalline solid which is deliquescent (absorb water). When heated, crystals lose water @ 100C. |
| Color | White to gray |
| Odor | Odorless |
| Form | powder |
| Water Solubility | 740 g/L (20 ºC) |
| Vapor Pressure | 0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.358 |
| pH | 8-10 (100g/l, H2O, 20℃) |
Safety & Handling (Learn More)
Warning GHS07 GHS05 GHS08
H
H302H318H319H335H373
P
P260P261P264P270P271P280P317P319P330P405P501P264+P265P301+P317P304+P340P337+P317P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 28272000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
calcium dichloridecalcium(II) chloridecalcium(2+) chlorideStopitDowflakeCalcosanLiquidow
Related Products
Raw Materials
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