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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.Calcium hydroxide as an additive is widely used in various chemical industries.
High purity calcium hydroxide is an indispensable raw material for the production of adhesives
Firstly, it can be used to adjust the pH value of the adhesive system. Calcium hydroxide is a strong base, and by adding an appropriate amount of it, the pH value of the adhesive can be controlled within a suitable range. This is beneficial for influencing the stability and reactivity of polymers in the adhesive. For example, in some water - based acrylic adhesives, adjusting the pH value to 7 - 9 by using calcium hydroxide can stabilize the emulsion, prevent the polymer from coagulating, and promote the cross - linking reaction, thereby improving the adhesive strength and water resistance of the adhesive.
Secondly, calcium hydroxide can participate in the cross - linking reaction. It can react chemically with certain functional groups in the adhesive to form a cross - linked structure. For instance, in polymer adhesives containing functional groups such as carboxyl and hydroxyl groups, the calcium ions in calcium hydroxide can complex with the carboxyl groups to form an ionic cross - linked network. This increases the cohesion and adhesive strength of the adhesive, and also improves its heat resistance and solvent resistance.
Thirdly, as a filler, calcium hydroxide can reduce the cost of adhesives. Meanwhile, it can improve the processing properties and physical properties of adhesives. On one hand, it can increase the consistency and thixotropy of adhesives, making them easier to operate during coating and less likely to flow. On the other hand, the appropriate addition of calcium hydroxide can enhance the mechanical properties of adhesives, such as hardness, wear resistance, and impact resistance. For example, adding an appropriate amount of calcium hydroxide to epoxy adhesives can increase the hardness and compressive strength of the adhesive layer.
Finally, in some wood adhesives, calcium hydroxide can interact with components such as cellulose in wood to form an alkaline protective film on the wood surface, which prevents the intrusion of moisture. At the same time, it can also work synergistically with other components in the adhesive to improve the water - resistance of the adhesive, enabling the bonded wood to maintain good adhesive strength in a humid environment.
| Inspection Items | Standard Requirements | Test Results |
|---|---|---|
| Purity of Calcium Hydroxide (Ca(OH)₂) | ≥96% | 96.30% |
| Content of Magnesium and Alkali Salts (Mg&Alkali Salts) | ≤0.3% | 0.24% |
| Content of Hydrochloric Acid - Insoluble Matter (Hcl - Insoluble matter) | ≤0.1% | 0.06% |
| Arsenic (As) Content | ≤2 ppm | 0.15 ppm |
| Fluoride Content | ≤50 ppm | 7 ppm |
| Lead (Pb) Content | ≤2 ppm | 0.18 ppm |
| Total Heavy Metals (Calculated as Pb, Heavy Metals) | ≤10 ppm | 3 ppm |
| Loss on Drying | ≤1% | 0.20% |
Flue Gas Desulfurization: Widely used for exhaust gas treatment in power plants.
Water Treatment: Effective in water purification and sewage treatment processes.
Industrial Use: Rubber and PVC plastics additives, leather tanning and other chemical industries
other: Food, medical and other industries
Qualification Certificate
Packaging & Shipping
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.
