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English Name: Calcium hydroxide
CAS Number: 1305-62-0
Appearance: White powdered solid
Packaging: Available in 25KG bags Or 1000KG Jumbo bags
Melting Point: 580°C
Boiling Point: 2850°C
Solubility: Slightly soluble in water, insoluble in alcohol, soluble in ammonium salts and glycerin
Calcium hydroxide can also be called Hydrated Lime,Calcium hydroxide is a strong base with bactericidal and preservative properties. It has a corrosive effect on skin and fabrics. It reacts with acids to form corresponding calcium salts.
Flue Gas Desulfurization: Widely used for exhaust gas treatment in power plants.
Water Treatment: Effective in water purification and sewage treatment processes.
Industrial Use: Widely used in the construction, environmental protection, and chemical industries.
Calcium hydroxide has various important applications in the paper - making industry, which are detailed as follows
Creating a stable environment: It adjusts the pH value of the pulp to a weakly alkaline range of 7 - 9, providing a stable chemical environment for the subsequent paper - making processes. This is conducive to improving the durability of paper and preventing it from becoming brittle during long - term storage due to an acidic environment.
Optimizing the performance of additives: A suitable pH value enables additives such as sizing agents and retention aids to function better. For example, under weakly alkaline conditions, the sizing agent can more effectively form a protective film on the fiber surface, improving the water - resistance of the paper.
Promoting fiber bonding: It reacts with components such as lignin in the pulp, changing the charge distribution on the fiber surface and enhancing the bonding force between fibers. Consequently, the physical properties of the paper, such as tensile strength, burst strength, and tear strength, are improved.
Strengthening the hydrogen - bonding between fibers: By adjusting the acidity and alkalinity of the pulp, the hydroxyl and other active groups on the fiber surface are better exposed, promoting the formation of hydrogen - bonds between fibers and further enhancing the strength of the paper.
Neutralizing acidic wastewater: Paper - making wastewater usually contains certain acidic substances. Calcium hydroxide can react with them to adjust the pH value of the wastewater to near - neutral, meeting the discharge standards and reducing environmental pollution.
Removing heavy metal ions: It can react with heavy metal ions in the wastewater, such as copper, zinc, and lead, to form insoluble heavy metal hydroxide precipitates, thereby achieving the removal of heavy metal ions and purifying the wastewater.
Improving filler purity: It reacts with the impurities on the surface of mineral fillers such as kaolin and calcium carbonate, removing the impurities and improving the purity and whiteness of the fillers. This gives the paper better color and optical properties.
Enhancing the combination of fillers and fibers: It adjusts the surface properties of the fillers, making them more compatible with the pulp fibers and increasing the retention rate of the fillers in the paper. This not only reduces production costs but also improves the smoothness and opacity of the paper.
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.
