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Chemical Name | Calcium Oxide (CaO) |
Purity | ≥90% (High purity ≥95% ) |
Appearance | White lumps/powder |
Impurity Content | ≤1% (Strict control of trace elements like iron and magnesium) |
Packaging Specifications | 25kg bags or 1-ton Jumbo bags |
Standards Compliance | Complies with GB/T 1594-2008 Industrial Quicklime Standard; Certified by ISO 9001 and SGS |
High-purity calcium oxide is a high-purity alkaline oxide product refined from high-quality limestone through high-temperature calcination. It features high main content, low impurity content, strong activity, fast reaction rate and stable alkalinity, enabling rapid hydration, neutralization, dehydration and sterilization reactions.
It is widely used in sewage treatment, metallurgical fluxing, chemical raw materials, soil improvement, building materials production and other fields. With stable and reliable quality and efficient performance, it can effectively improve production efficiency, reduce usage costs and meet high-standard requirements for various industrial production and environmental protection treatments.
High content calcium oxide has significant advantages in industrial production and application due to its core characteristics of high purity, strong activity, and low impurities. It has a high proportion of effective calcium oxide components, which can greatly improve reaction efficiency and usage effectiveness, reduce side reactions caused by excessive impurities, and ensure product stability and reliability.
Excellent quality, diverse applications
From the complex reactions in fine chemicals to pollution control in the environmental protection field; From the quality improvement of building materials to the safety guarantee of food and medicine, our calcium oxide, with its high purity, high fineness and low impurities, has played a significant role in various fields. High purity ensures the purity of the reaction, high fineness accelerates the reaction process, and low impurities guarantee safe use. We provide you with all-round and high-quality calcium oxide solutions to meet your diverse needs. We are your reliable and high-quality partner.
Safety Information
Hazard Description: Calcium oxide is a strong base and has irritating and corrosive effects. It is strongly irritating to the respiratory tract and can cause chemical pneumonia; oral administration can irritate and burn the digestive tract; it is strongly irritating to the eyes and skin and can cause burns.
Protective Measures: When using, personal protective equipment such as protective glasses, gloves and masks should be worn to avoid direct contact with skin and eyes. In case of accidental contact, rinse immediately with plenty of water and seek medical attention in time.
Storage and Transportation: It should be stored in a cool, dry and well-ventilated warehouse, away from fire and heat sources. Do not mix with acids for storage and transportation. During transportation, it should be protected from rain and moisture.
1. High purity with sufficient active ingredients
High in calcium oxide content and low in impurities, ensuring more thorough reaction and stable, reliable performance.
2. Strong activity and fast reaction speed
Rapid slaking upon contact with water, delivering higher efficiency in neutralization, desulfurization and purification with shorter processing time.
3. Low dosage and reduced overall cost
Requires less usage to achieve equivalent effects with low loss, making it more economical for long-term application.
4. Low impurities, eco-friendly and safe
Low in harmful impurities such as sulfur, phosphorus and heavy metals, producing less waste residue without secondary pollution, fully meeting environmental protection requirements.
5. Wide applicability and stable quality
Uniform particle size, resistance to caking, suitable for water treatment, desulfurization, metallurgy, chemical engineering, soil improvement, breeding disinfection and other fields.
STRICT PRODUCT QUALITY TESTING
We have established an independent laboratory, equipped with professional high-tech talents, to strictly control product quality. During the production process, technical personnel regularly sample and test products, track, monitor and feedback product quality in real time. Every link from the storage of raw materials to the delivery of finished products undergoes strict inspection. Each truckload of goods can leave the factory only after passing the inspection, ensuring that the qualified rate of products used by customers meets high standards.


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Leveraging the superior resource endowment of our own mines in Hubei, the quicklime we produce demonstrates remarkable quality advantages: not only does its effective calcium oxide content far exceed the industry average, but its extremely low impurity ratio also ensures high-performance in applications. The mine resources, which are controlled from the source, endow the quicklime with a natural purity base. Coupled with sophisticated calcination technology, each batch of products can maintain stable high activity — this not only provides solid support for efficient slag formation and deep impurity removal in iron and steel smelting, but also meets the stringent requirements for high-quality quicklime in fields such as construction and chemical industry.