1. Basic Product Information
Calcium Chloride Dihydrate (CaCl₂·2H₂O) is a high-purity inorganic calcium salt, appearing as white or off-white flaky crystals, odorless and slightly bitter. It features extremely strong hygroscopicity and deliquesces rapidly in humid air. The product dissolves quickly in water with obvious heat release, and the aqueous solution is weakly alkaline. Divided into74% industrial grade and 77% industrial grade, it is manufactured in accordance with GB/T 26520-2021 standards, widely applied in snow melting, refrigeration, petroleum drilling, water treatment, construction, chemical industry and other industrial fields.
Molecular Formula: CaCl₂·2H₂O
Molecular Weight: 147.02
CAS No.: 10035-04-8
HS Code: 2827.20
Payment Terms: T/T, L/C
Trade Terms: FOB, CFR, CIF
MOQ: 20GP ≈ 20-25MT
Melting Point: 30℃ (Dehydration start); Completely dehydrated at 260℃, Boiling Point: 100℃ (Atmospheric pressure, water evaporation)
Core Features: Super hygroscopic, fast dissolution with heat release, easy feeding, stable physical and chemical properties, wide adaptability
2. Technical Parameter Comparison Table
3. Product Characteristics
3.1 74% Flake Calcium Chloride Dihydrate
Produced by refined technology with stable purity above 74%. The flaky structure ensures good fluidity, convenient feeding and no dust waste. It dissolves rapidly with uniform heat release and excellent anti-caking performance, maintaining stable physical and chemical properties. Suitable for general industrial working conditions, factory direct supply provides obvious cost advantages. It is the best choice for large-scale industrial projects with conventional impurity requirements and delivers high overall cost performance.
3.2 77% Flake Calcium Chloride Dihydrate
High-purity refined grade with stable CaCl₂ content ≥77%. Impurity indicators such as sulfate and water-insoluble substances are strictly controlled. It features higher purity, clear aqueous solution without impurities and extremely low corrosion to equipment. The regular and uniform flakes have stronger moisture-proof and anti-caking ability with excellent purity stability. It adapts to high-precision, low-corrosion and high-cleanliness industrial scenarios, effectively reducing equipment scaling, loss and subsequent operation and maintenance costs.
4. Main Applications
Petroleum Drilling Industry: As a core additive for oilfield drilling, cementing and workover operations, it is used to prepare drilling fluid, completion fluid and workover fluid. It effectively increases mud density, stabilizes well walls, prevents formation collapse and balances formation pressure. It inhibits clay hydration and expansion, reduces risks of sticking and lost circulation, improves drilling stability and efficiency, and adapts to onshore and offshore oilfield exploitation.
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Water Treatment Industry: Widely used in industrial wastewater, municipal sewage, circulating cooling water and tap water purification. It serves as a water hardness regulator, flocculation auxiliary and phosphorus & scale remover, effectively precipitating suspended solids, heavy metal ions and pollutants to reduce water turbidity. It inhibits algae growth and pipeline scaling & corrosion in circulating water systems, delivering stable water purification effects for factory water circulation and sewage treatment projects.
Snow Melting & Anti-freezingA high-efficiency snow melting and anti-freezing raw material, which can lower the freezing point of water below -15℃. It features fast snow melting speed, long-lasting effect and anti-refreeze performance. Widely used for winter snow removal and anti-icing of highways, bridges, airports and factory roads, suitable for long-term anti-freezing construction in low-temperature northern areas.
Refrigeration Industry: A key raw material for industrial refrigeration, applied in salt water circulation systems of refrigeration units, cold storage and ice-making equipment. It prepares low-temperature refrigerated salt water with fast cooling speed and stable refrigeration effect, widely used in cold chain, chemical refrigeration and industrial temperature control.
Construction Engineering: Used as concrete and mortar antifreeze and early strength agent. It accelerates concrete solidification and hardening, improves structural strength under low temperature conditions, avoids concrete cracking and insufficient strength in winter construction, and guarantees construction quality and progress in low-temperature environments.
Industrial Drying & Dehumidification: With super strong hygroscopicity, it is used for drying and purification of industrial gases such as nitrogen and hydrogen, as well as moisture-proof dehumidification of warehouses, mechanical equipment and precision instruments, achieving long-term and stable drying effects.
Other Industrial Uses: Widely applicable in textile sizing, waste paper deinking, feed calcium supplementation, rubber coagulant, wood preservation and chemical synthesis additives, covering various conventional industrial processing scenarios.
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5. Packaging, Storage & Transportation
5.1 Packaging Specifications
Conventional package: 25kg plastic inner bag + woven outer bag; bulk package: 1 ton jumbo bag. Adopts industrial-grade moisture-proof and wear-resistant packaging with strong sealing and anti-leakage performance. Custom packaging is available according to customer requirements.
5.2 Storage Requirements
Store in a cool, dry and well-ventilated warehouse with fully sealed storage. Avoid moisture, rain and humid air. Keep away from acid, alkali and toxic harmful materials with classified storage. The shelf life is 12 months under sealed conditions.
5.3 Transportation Requirements
This product is ordinary chemical goods, non-dangerous goods with low transportation threshold. Avoid direct sunlight, rain soaking and violent extrusion during transportation to prevent package damage, deliquescence and leakage, ensuring intact delivery.