Calcium Chloride Desiccant
Product Category: Desiccant
Key Attributes:
- Specifications: 1g, 2g, 5g, 10g, 25g, 50g, 100g
- Configuration: Single-layer / Double-layer
- Active Material: Calcium Chloride Anhydrous, Calcium Chloride Dihydrate
- Packaging Material: Laminated Nonwoven Fabric, Transparent Film, Dumay Paper
- Sealing: Back Sealed, Four-Side Sealed
- Printing: 12-Language Version / Custom Printing
Product Quotation:
$: Free samples available, detailed pricing upon consultation
Optional Formulations:
We offer both calcium chloride and magnesium chloride desiccants, which are high-capacity moisture absorbers based on chemical adsorption. Depending on your specific requirements, we can tailor formulations with varying moisture absorption rates. Below are the available options for each type.
SorbMax-A260
Main Ingredients:
Dihydrate Calcium Chloride
Moisture Absorption Rate under RH=90%:
260%
Post-Absorption State:
Liquefies at high temperatures, forms a hard gel at room temperature.
SorbMax-A300
Main Ingredients:
Anhydrous Calcium Chloride
Moisture Absorption Rate under RH=90%:
300%
Post-Absorption State:
Gel-like state, with better temperature resistance than SorbMax-A260.
SorbPlus-B260
Main Ingredients:
Anhydrous Magnesium Chloride
Moisture Absorption Rate under RH=90%:
260%
Post-Absorption State:
Hardens at high temperatures, becomes a sandy consistency at room temperature.
SorbPlus-C220
Main Ingredients:
Anhydrous Magnesium Chloride
Moisture Absorption Rate under RH=90%:
220%
Post-Absorption State:
Solid state, with better temperature resistance than SorbPlus-B260.
SorbPlus-D400
Main Ingredients:
Anhydrous Magnesium Chloride
Moisture Absorption Rate under RH=90%:
400%
Post-Absorption State:
Gel-like state, with better temperature resistance than SorbMax-A260.
The core material of calcium chloride desiccant—calcium chloride—can be produced through various methods. Chemically, it can be synthesized by reacting high-quality calcium carbonate with hydrochloric acid (CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂↑). However, to maximize both environmental sustainability and cost-effectiveness, the industry widely adopts a green circular approach: recycling and refining the by-product waste liquid generated during the soda ash production (Solvay process). Through purification, evaporation, and drying, this method not only ensures high-purity output but also turns waste into valuable resources, embedding eco-friendly principles into the product from the very beginning.
Our calcium chloride desiccant is a highly effective moisture-absorbing product made from a scientific blend of high-purity calcium chloride and natural plant-based starch. It works through strong chemical absorption, actively capturing moisture within enclosed spaces—such as plastic bags, cartons, and shipping containers—to significantly reduce ambient humidity. The absorbed moisture is rapidly converted into a stable gel and securely locked within the durable packaging, eliminating any risk of liquid leakage and preventing re-evaporation. This provides safe, clean, and reliable protection for your goods against dampness.
Thanks to its high efficiency, stability, and environmentally conscious design, our calcium chloride desiccant has become a leading choice for moisture prevention in sectors such as logistics, transportation, and industrial storage.
What are the benefits of calcium chloride desiccant?
There is no single “best” desiccant—each type has its own strengths, limitations, and ideal applications. Compared to traditional clay and silica gel desiccants, calcium chloride offers a higher moisture absorption rate and a broader effective temperature range. This makes it especially suitable for demanding environments with high humidity levels or harsh conditions.
Common use cases include:
- Preventing “container rain” in maritime shipping
- Providing long-term moisture protection in large storage facilities
- Controlling dampness in homes and living spaces
Thanks to its high-capacity, sustained moisture absorption, calcium chloride delivers stronger and more reliable protection.
Together with silica gel’s stable, non-corrosive properties for sensitive electronics and food-safe applications, as well as clay desiccants’ cost-effective and eco-friendly performance, calcium chloride forms part of a complementary moisture control system. This diversified range of solutions meets the varied needs of different industries and scenarios.
- Calcium Chloride Anhydrous Desiccant: Moisture Absorption Rate: ≥300%, Temperature Range: -5°C to 90°C.
- Clay & Calcium Chloride Blend Desiccant: Moisture Absorption Rate: ≤85%, Temperature Range: <50°C.
- Clay Desiccant / Silica Gel Desiccant: Moisture Absorption Rate: ≤30%, Temperature Range: <50°C (Clay), <37°C (Silica Gel).
Calcium chloride desiccant is primarily composed of calcium chloride and plant-based starch in a specific ratio. It functions through the strong hygroscopic property of calcium chloride, which absorbs moisture from the air. The absorbed water then combines with the starch to form a gel-like substance, effectively preventing liquid leakage and ensuring safe, reliable moisture control.
Before Absorption
Absorbing Moisture
After Absorption
The high hygroscopicity of calcium chloride means it can absorb large amounts of moisture. Our calcium chloride desiccants use a double-layer packaging design to prevent leakage: an outer layer of coated non-woven fabric, and an inner layer made of transparent film and non-woven material.
Dual-Layer Packaging for Double Protection
Dual-Layer Packaging for Double Protection
Inner Layer: Transparent film & non-woven fabric
To suit different application environments, our calcium chloride desiccant is available in free-standing, hangable, and lay-flat versions. Contact us for personalized application guidance.
Desiccant Dosage Calculator for Packaging (Click to Enter)
This calculator is designed based on the German Standard DIN 55474.
About Chunwang:
With 27 years of expertise in desiccant manufacturing, we produce calcium chloride desiccants in a full range of specifications. Standard products are ready to ship immediately, while we also support deep customization to meet your specific needs. We go beyond mere manufacturing and sales to provide scientific moisture protection solutions, ensuring your products stay safe and dry.
Learn More About Chunwang Group >>
Chunwang Advantages:
- Established in 1998, with over 20 years of expertise in R&D and production of desiccants and oxygen absorbers.
- Stock Code: 831880; Stock Abbreviation: Chunwang New Materials.
- Three production bases in Shenzhen, Dongguan, and Anhui, totaling 60,000 m².
- Drafting Unit for the Chinese industry standard BB∕T 0049-2021 (Desiccants for Packaging).
- Drafting Unit for GB/T 41896-2022 (Oxygen Absorbers for Food) and GB/T 41897-2022 (Desiccants for Food).
- Certifications: ISO, BSCI, GMP, High-Tech Enterprise, Specialized & Innovative SME.
- Compliance: RoHS, REACH, TSCA; completed FDA DMF filing.
- National Pharmaceutical Packaging Material Registration No.: B20190000354.
Our company possesses significant technical expertise and industry-leading professional capabilities. Our products incorporate innovative technologies, backed by extensive experience in R&D, stringent quality control, and practical market applications. We are committed to providing customers with efficient, safe, and environmentally sustainable mold and moisture prevention solutions.
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Calcium Chloride Desiccant Overview:
Below are the common specifications for our calcium chloride desiccants. Standard configurations are available for immediate shipment. We also support comprehensive customization—including packaging materials, print design, and weight/size specifications—and can manufacture virtually any form of calcium chloride desiccant available on the market.
1g Calcium Chloride Desiccant
2g Calcium Chloride Desiccant
5g Calcium Chloride Desiccant
10g Calcium Chloride Desiccant
25g Calcium Chloride Desiccant
50g Calcium Chloride Desiccant
100g Calcium Chloride Desiccant
Calcium Chloride Container Dry Strip
Calcium Chloride Container Dry Strip Plus
Calcium Chloride Container Dry Pole
Calcium Chloride Cargo Dry Blanket
Related Link: Product Test Reports>>
Related Link: Production Environment>>
Extensive Experience:
With over 20 years of deep industry experience, we have provided leading moisture-proof solutions and products to numerous renowned domestic and international enterprises. We now bring this accumulated expertise directly to your products and production lines, helping you to: Significantly reduce moisture-related damage and guarantee product quality. Safeguard brand reputation to earn lasting market and customer trust.
Our team is here for you (7X24):
We value every single relationship. Big or small, your business is important to us. You can count on our heartfelt enthusiasm and full support whenever you reach out.
Ms. Liu
Gold Medal Sales Rep
Ms. Zhou
Gold Medal Sales Rep
Ms. Zeng
Gold Medal Customer Service
Ms. Lan
Gold Medal Customer Service