Product Name: Premium Low Iron Calcium Hydroxide
High-Quality Calcium Hydroxide for Lubricating Oil
Changshu Hongyu Calcium Co., Ltd. presents Special Calcium Hydroxide for Lubricating Oil, a high-quality product designed to enhance the performance of lubricating oils. With its environmentally friendly properties and versatile applications, this calcium hydroxide is a valuable addition to various industries.
Features:
- Environmentally friendly: Our calcium hydroxide serves as an effective neutralizer for acid wastewater, making it ideal for sewage treatment and boiler flue gas desulfurization.
- Chemical raw material: It can be used as an additive or filler in leather, metallurgy, coatings, petroleum lubricants, and paper production.
- Multi-purpose: This calcium hydroxide is also utilized as a stone cutting aid, soil stabilizer, concrete tempering agent, chemical reagent, gypsum board caulking coagulant, construction adhesive ingredient, hard water softener, and plastic fiber.
Benefits:
- High screening rate: Our calcium hydroxide has a screening rate of 125 mesh ≥90%, ensuring its effectiveness in environmental treatment.
- Strong alkaline flocculant: It acts as a powerful flocculant, neutralizing acidic wastewater and promoting its conversion to a neutral state.
- Flue gas desulfurization: By absorbing SO2 in boiler flue gas, our calcium hydroxide helps meet environmental protection standards by reducing sulfur emissions.
Choose Special Calcium Hydroxide for Lubricating Oil from Changshu Hongyu Calcium Co., Ltd. for its exceptional quality and wide range of applications. Experience the benefits of this versatile product in your industry today!

Special Calcium Hydroxide for Lubricating Oil
Nicknames: Slaked Lime, Hydrated Lime
Main Component: Ca(OH)2 (Molecular Weight: 74.8)
Production Method: Calcium hydroxide is obtained by digesting calcium oxide with water and undergoing a process of drying, sifting, and windpicking.
Physical and Chemical Properties: Calcium hydroxide is strongly alkaline. When exposed to air, it gradually absorbs carbon dioxide and transforms into calcium carbonate. It is slightly soluble in water and soluble in acid. The density of calcium hydroxide is 22.4g/cm3. Its clarified aqueous solution is a colorless, odorless, alkaline transparent liquid with a pH value of 12.4.
Manufacturer: Changshu Hongyu Calcium Co., Ltd.





Changshu Hongyu Calcium Co., Ltd.
Product: Calcium Carbonate
Our calcium carbonate is available in two convenient packaging options:
- Small Bag: 25kg/bag, 36 bags/jumbo package, 18 metric tons/20FT container
- Jumbo Package: 900kg/jumbo package/pallet, 18 metric tons/20FT container
Our calcium carbonate is a versatile product that can be used in various industries, including but not limited to plastics, rubber, paint, and paper. It is known for its high purity and excellent quality, making it a reliable choice for your manufacturing needs.
Choose Changshu Hongyu Calcium Co., Ltd. for all your calcium carbonate requirements!

Welcome to Changshu Hongyu Calcium Co., Ltd.
Product: Calcium Hydroxide
The packaging of our calcium hydroxide is designed for secure shipping, ensuring careful loading to maintain product integrity. It is crucial to avoid transporting calcium hydroxide on rainy days to prevent any potential hazards.
Storage Precautions:
- Store in a cool, ventilated warehouse with humidity levels not exceeding 85%.
- The packaging is sealed to prevent moisture absorption, ensuring product quality.
- Avoid direct contact with water and store in a dry, cool, draught-free environment to maintain product stability.
Trust Changshu Hongyu Calcium Co., Ltd. for high-quality calcium hydroxide that meets your industrial needs.

Welcome to Changshu Hongyu Calcium Co., Ltd.
Specializing in high-quality calcium hydroxide products, our company utilizes cutting-edge technology to cater to various industries. Our calcium hydroxide, also known as slaked lime, is widely used in petroleum additives, lubricants, petrochemical products, environmental protection, sewage treatment, and food desiccant applications.
With a focus on scientific testing and stringent management, we ensure the superior quality of our products. Trusted by major petrochemical enterprises in China, our calcium hydroxide guarantees low cost, high purity, and excellent efficiency in finished products.
Operating three processing lines capable of producing over 100 tons of lime products daily, we adhere to the highest internal control standards to maintain exceptional quality across our product range.
Changshu Hongyu Calcium Co., Ltd.
Q&A
Q: Are you a trading company or a factory?
A: We are a factory.
Q: What is your main product?
A: Our main products are calcium oxide and calcium hydroxide.
Q: How do you control the quality?
A: Our factory is equipped with professional technicians to control quality. Our inspectors take samples for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS, or any other Third-party inspection.
Q: How long does it take for shipping?
A: We can ship within 7 days after confirming the order.
Q: Where is your factory located? How can I visit the factory?
A: Our factory is located in Changshu, Jiangsu. You are welcome to visit at any time, and we can pick you up from the nearby machine factory.