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Calcium hydroxide can also be called slaked lime, hydrated lime.Production method of calcium hydroxide: The finished product is obtained by digesting calcium oxide with water and drying, sifting and windpicking.Physical and chemical properties of calcium hydroxide: strongly alkaline. Placed in the air, it gradually absorbs carbon dioxide and becomes calcium carbonate. Slightly soluble in water, soluble in acid. With a density of 22.4g/cm3, its clarified aqueous solution is a colorless odorless alkaline transparent liquid with a PH value of 12.4.
Parameter | Indicator |
Appearance | White powder, free of visible impurities |
Whiteness | ≥96% |
Calcium Hydroxide Content | ≥98.5% (mass fraction) |
Iron (Fe) Content | ≤0.03% (mass fraction) |
Magnesium (Mg) Content | ≤0.3% (mass fraction) |
Fineness | Pass through 400 - mesh sieve (residue ≤0.5%) |
Moisture | ≤0.3% (mass fraction) |
Calcium Carbonate (CaCO₃) Content | ≤1.0% (mass fraction) |
Heavy Metals (calculated as Pb) Content | ≤0.002% (mass fraction) |
Low iron high whiteness calcium hydroxide is the main raw material for producing calcium hypochlorite
As a reactant: Calcium hydroxide is one of the main raw materials for the preparation of calcium hypochlorite. In the production process, chlorine gas is introduced into the suspension or aqueous solution of calcium hydroxide, and a chemical reaction occurs to produce calcium hypochlorite, calcium chloride, and water. The reaction equation is2Ca(OH)2+2Cl2=Ca(ClO)2+CaCl2+2H2O. The quality and concentration of calcium hydroxide have a significant impact on the progress of the reaction and the quality of the product. Usually, calcium hydroxide with high purity and appropriate particle size is required to ensure the full progress of the reaction and improve the yield and purity of calcium hypochlorite.
Adjusting the pH of the reaction system: Calcium hydroxide can adjust the pH value of the reaction system. During the reaction, maintaining an appropriate alkaline environment is beneficial to the absorption of chlorine gas and the formation of calcium hypochlorite. If the reaction system is too acidic, it will lead to the decomposition of calcium hypochlorite, reducing the stability of the product and the effective chlorine content. While if the alkalinity is too strong, it may increase the formation of impurities and affect the product quality. Therefore, according to the progress of the reaction, calcium hydroxide needs to be added to accurately control the pH of the reaction system to ensure that the reaction proceeds within the appropriate pH range.
Participating in the subsequent treatment process: In the subsequent treatment of calcium hypochlorite production, calcium hydroxide may also play a role. For example, in the separation and purification process of the product, the property that calcium hydroxide reacts with some impurities to form precipitates may be utilized. The impurities are removed by filtration and other operations, thereby improving the purity of calcium hypochlorite. In addition, during the drying process of the product, an appropriate amount of calcium hydroxide can help absorb moisture, prevent calcium hypochlorite from decomposing due to moisture, and improve the stability and storage performance of the product.
Qualification Certificate
Our Advantages
We have our own mine in Hubei Province, which endows us with the following advantages:
Stable Raw Material Supply: Owning our own mine ensures a stable supply of raw materials for calcified substances. This helps to avoid production interruptions caused by issues such as fluctuations in the raw material market and supply shortages. It guarantees the smooth progress of production plans and maintains a stable product output, enabling us to better meet customer needs and enhance customer satisfaction.
Controllable Raw Material Quality: Our company can directly manage and monitor the mining process of the mine, and strictly control the quality of raw materials. We are able to select appropriate ore grades and qualities according to production requirements, ensuring that the mined ore meets the high standards of our products. This provides a solid foundation for producing high-quality calcified substance products and helps to enhance the market competitiveness of our products.
Cost Advantage: Obtaining raw materials from our own mine reduces intermediate procurement links and lowers procurement costs. Moreover, in the long run, a stable raw material supply also enables our company to take the initiative in cost control and avoid the risk of cost increases due to fluctuations in raw material prices, thereby improving the company's economic benefits and profitability.
FAQ
Q: Are you a trading company or a factory?
A: We are a factory.
Q: What are your main products?
A: Calcium oxide, Calcium hydroxide, Light calcium carbonate, Heavy calcium carbonate，Nano calcium carbonate
Q: How do you control quality?
A: Our factory is equipped with professional technicians to control the quality, and the inspectors conduct a sample test every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other third party inspection.
Q: Where is your factory?
A: Our factory is located in Changshu, Jiangsu Province, welcome to visit us at any time.
Q: Do you offer custom calcified products?
A: We offer various grades of calcium products to meet the needs of our customers.
Q: How do I contact you to purchase a product?
A: Below is our contact information, please feel free to contact us at any time.
