Product Overview
Calcium Chloride (CaCl₂) is a white to off-white hygroscopic solid used across transportation, construction, and general industry for moisture absorption, ice management, and dust suppression. This Technical Grade product is offered in pack sizes from 2 lbs to 50 lbs, serving bench-scale trials through mid-volume production needs.
Buyers in road maintenance, ready-mix concrete, cold-storage warehousing, and industrial drying operations rely on calcium chloride for its aggressive affinity for water. It dissolves readily, generates heat on contact with moisture, and depresses the freezing point of water well below what sodium chloride can reach — properties that make it a workhorse in cold-weather and humidity-control work.
Why This Grade
Technical Grade calcium chloride is sourced for process and field applications where the priority is consistent performance at an industrial price point. Road crews, dust-control contractors, and concrete batch plants typically specify technical grade because the application does not demand the tighter assay tolerances associated with laboratory or food-processing grades.
If your operation involves analytical benchwork or food-contact processes, a higher-purity designation may be required by your facility's quality system. For de-icing, dust control, concrete set acceleration, and general desiccant duty, technical grade is the standard industry choice.
Chemical Profile
Calcium chloride has the molecular formula CaCl₂, a molecular weight of 110.98 g/mol, and carries CAS number 10043-52-4. In its solid form it appears white to off-white and is odorless. The compound is denser than water at 2.15 g/cm³ (measured at 68 °F) and dissolves readily, with a solubility of 0.745 g/mL at 20 °C. That high solubility and the exothermic nature of dissolution are central to its performance in de-icing and moisture-control roles.
Industrial Applications
Calcium chloride earns its place across several industries because of two core behaviors: it pulls moisture from the air and it lowers the freezing point of water aggressively.
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De-icing. Applied to roads, parking lots, and walkways to melt ice and prevent re-freeze at temperatures well below what rock salt handles. Municipal and private snow-removal crews use it as a standalone treatment or blended with other chlorides to extend effective temperature range.
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Dust control. Spread on unpaved roads, construction access lanes, and aggregate yards, calcium chloride draws humidity from the air to keep the surface damp and hold fine particles down. A single application can suppress dust for weeks depending on traffic and weather.
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Concrete acceleration. Added to ready-mix batches in cold-weather pours, it accelerates set time so crews can strip forms faster and keep projects on schedule. Dosing follows the concrete supplier's mix-design specs.
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Desiccant and moisture control. Placed in enclosed spaces — shipping containers, electrical cabinets, storage vaults — to absorb ambient moisture and protect goods or equipment from corrosion and mold.
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Chemical reagent. Used in laboratory and pilot-plant reactions where a soluble calcium source or a drying agent is needed in the process stream.
Handling & Storage
Calcium chloride carries a Warning signal word and hazard statement H319: Causes serious eye irritation (per the product's GHS classification). Eye protection — splash-proof chemical safety goggles — is the minimum PPE for any handling operation. Gloves and long sleeves prevent skin drying from prolonged contact with the solid or concentrated solutions.
Store in a cool, dry area with containers tightly sealed. Calcium chloride is aggressively hygroscopic: an open bag will pull moisture from the air, cake into a solid mass, and eventually deliquesce into a puddle of brine. Keep it away from strong acids and from metals that corrode in chloride environments. Ensure adequate ventilation where dust may be generated during scooping or transfer.
Hazmat & Shipping
Calcium chloride in this form is not assigned a UN number, hazard class, or packing group under the DOT Hazardous Materials Table (per 49 CFR 172.101). It ships as a non-regulated material for ground transport purposes. Note that individual carriers may still apply their own handling or documentation requirements — the DOT classification governs the regulatory obligation, not the carrier's commercial policies.
Documentation
A Safety Data Sheet ships with every order and is available in English, Spanish, French, and Japanese. A lot-specific Certificate of Analysis (COA) is also available on request, documenting the actual assay and key parameters of the batch you receive. A Technical Data Sheet (TDS) is on file for reference.
Why Buy from Alliance Chemical
This calcium chloride listing spans 2 lb trial quantities through 50 lb bags — sized so a dust-control contractor can order production volume and a maintenance shop can keep a small stock on hand, all from the same supplier. Alliance Chemical has served over 50,000 customers since 1998, operating from our warehouse at 204 S Edmond St, Taylor, Texas 76574. Product pages and shipping guidance are reviewed by Andre Taki, DOT Hazmat Specialist, so the regulatory detail you read here is checked against the current Hazardous Materials Table — not copied from a generic template.
