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Soda Lime Carbon Dioxide Absorbent CAS 8006-28-8 - High-Efficiency China Suppliers & Factory Products
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Chemical Name: Soda Lime / Carbon Dioxide Absorbent
CAS No.: 8006-28-8
Molecular Formula: CaHNaO2
Molecular Structure:
Molecular Weight: 96.07
Appearance: White and Pink Granules
Production Capacity: 10 Tons Per Day
Water Solubility: Soluble in Water
Sample: Free Samples Available
Color-Changing Properties: This product features a unique color-changing mechanism, where the color gradually fades after absorbing carbon dioxide, transitioning from pink to grayish-white or from white to purple, clearly indicating its absorption efficiency.
,Product Advantages: Our high-quality medical-grade soda lime boasts exceptional absorption efficiency, capable of absorbing at least 19.0% or even up to 30% or more of carbon dioxide. As a leading China manufacturer and supplier, we ensure that our products meet rigorous standards for performance and reliability.
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Typical Properties
| Item | Specifications |
| Appearance | White granule |
| CO₂ adsorption rate | ＞25% |
| Moisture absorption | ＜7.5% |
| Water | ＞10% ＜15% |
| Particle Hardness | ＞80% |
| Particle size | 4-mesh sieve matter ＜1.0% |
| Through 40 mesh ＜2% |
Application
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🏥1. Medical AnesthesiaIn anesthesia and intensive care, it absorbs exhaled CO₂ in the circulation loop of anesthesia machines and ventilators, allowing the exhaled gas to be re-inhaled after replenishment with oxygen and anesthetic gas, achieving "closed-loop anesthesia" and significantly conserving anesthetic gas and oxygen.
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🤿2. Diving and Confined SpacesUsed in confined environments such as diving breathing apparatus (e.g., rebreathers), submarines, spacecraft, and hyperbaric oxygen chambers to purify air and maintain breathable oxygen levels and safe CO₂ concentrations.
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🏭3. Industrial Gas PurificationIn chemical and petroleum industries, it purifies hydrogen, nitrogen, inert gases, etc., removing acidic impurities such as CO₂ and H₂S.
- Biogas / Natural Gas Purification: Removes CO₂ to improve the calorific value and purity of the fuel.
- Flue Gas Treatment (small-scale or specific scenarios): Used as an alkaline absorbent to treat acidic gases.
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🔬4. Laboratory Applications
- Drying and purification: Used as a highly efficient desiccant, or for experiments requiring a completely CO₂-free environment.
- Synthetic reactions: Used as a basic catalyst or reactant in certain organic synthesis processes.
Package
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Available packaging options:
Storage
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Store in a ventilated, low-temperature, and dry environment. Keep separately from acids and ammonia salts.
❓ Frequently Asked Questions
💬 What is the CO₂ adsorption rate of this product?
The product has a CO₂ adsorption rate of greater than 25%, making it highly effective for removing carbon dioxide in closed-loop breathing systems and industrial gas purification applications.
💬 Is this product suitable for use in medical anesthesia machines?
Yes. This product is widely used in anesthesia machines and ventilators to absorb exhaled CO₂ in closed circulation loops, enabling "closed-loop anesthesia" and helping conserve both anesthetic gas and oxygen.
💬 Can it be used in submarine or spacecraft life support systems?
Yes. The product is suitable for confined environments including submarines, spacecraft, hyperbaric oxygen chambers, and diving rebreathers, where maintaining safe CO₂ concentrations and breathable oxygen levels is critical.
💬 What packaging sizes are available?
The product is available in four packaging options: 4.5 kg/drum, 5 L/drum, 16 kg/drum, and 20 kg/drum, accommodating both laboratory-scale and industrial-scale requirements.
💬 How should this product be stored?
Store in a ventilated, low-temperature, and dry environment. It must be kept separately from acids and ammonia salts to prevent chemical reactions that could compromise product quality or safety.
💬 What industrial applications is this product used for?
In industrial settings, it is used for purifying gases such as hydrogen, nitrogen, and inert gases by removing acidic impurities including CO₂ and H₂S. It is also applied in biogas and natural gas treatment to improve fuel calorific value, and as an alkaline absorbent in flue gas treatment.