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Calcium Hydroxide Manufacturer & Supplier for Industrial and Chemical Applications

Also known as hydrated lime or slaked lime, calcium hydroxide is an important inorganic chemical used in chemical manufacturing, water and wastewater treatment, environmental protection and other industrial processes. It is also used in the production of calcium hypochlorite, making it a relevant raw material for manufacturers in the chlorine-based chemical industry.
With manufacturing experience, raw material control, professional quality inspection and customer-oriented supply services, Hongyu works with B2B buyers to identify suitable calcium hydroxide grades for their applications.
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Calcium Hydroxide Product Overview


Calcium hydroxide, with the chemical formula Ca(OH)₂, is an inorganic compound commonly known as hydrated lime or slaked lime. It is generally supplied as a white powder and is valued for its alkaline properties and role in a wide range of chemical and industrial processes.

As a calcium hydroxide manufacturer in China, Changshu Hongyu supplies calcium-based products for industrial customers with different application requirements. The appropriate calcium hydroxide grade depends on the intended process, required chemical composition and other relevant technical specifications.

Main Applications of Calcium Hydroxide

Calcium hydroxide is used across several industrial sectors because of its alkaline properties and its role as a chemical raw material. The suitable grade and technical requirements depend on the specific production process.

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Calcium Hypochlorite Production

Calcium hydroxide is used in the production of calcium hypochlorite.Calcium hydroxide is an important raw material in the manufacture of calcium hypochlorite, a chlorine-based chemical used in bleaching and disinfection applications. For manufacturers of calcium hypochlorite, selecting suitable calcium hydroxide is an important part of raw material procurement and production planning.

Hongyu can discuss calcium hydroxide requirements with chemical manufacturers based on their intended production process, target specifications and purchasing needs. Buyers are encouraged to share their technical requirements when requesting a quotation.

Water and Wastewater Treatment

Calcium hydroxide is used in water and wastewater treatment processes where alkaline materials are required. Depending on the treatment system, it can support pH adjustment and the treatment of acidic streams.

Industrial buyers should evaluate the characteristics of the water or wastewater, process conditions and applicable treatment requirements before selecting a grade. Sharing these details with the supplier helps establish the appropriate product specification.

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Construction and Building Materials

Calcium hydroxide has applications in construction materials and related industrial formulations. Its use may depend on the formulation requirements, processing conditions and intended properties of the finished material.

For construction material producers, choosing a suitable calcium hydroxide grade requires consideration of compatibility with other ingredients and the technical requirements of the final application.

Agriculture and Soil Treatment

Calcium-based materials are used in agricultural applications, including soil pH management. Calcium hydroxide may be considered for suitable soil treatment applications where its alkaline properties meet the intended requirements.

The appropriate application rate and material selection depend on soil conditions, crop requirements and local agricultural guidance. Buyers should confirm product suitability and follow relevant application recommendations.

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Food Processing

Calcium hydroxide has uses in certain food processing applications when the material meets the requirements for the intended food use. Grade selection and regulatory compliance are essential considerations for food manufacturers.

Customers sourcing calcium hydroxide for food-related applications should specify the intended use and applicable standards before ordering. Food-grade suitability should be confirmed for the actual product supplied rather than assumed for every industrial grade.

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Why Choose Changshu Hongyu for Calcium Hydroxide?

Established Calcium Products Manufacturer

Changshu Hongyu was founded in 1984 and specializes in calcium hydroxide, calcium oxide and other calcium-based products. Our manufacturing background provides a foundation for serving industrial buyers who need a supplier familiar with calcium compound production.

Raw Material Control

Hongyu has its own mine in Hubei Province and emphasizes raw material control as part of its production approach. Control of raw materials is an important consideration when working toward consistent product quality and reliable supply.

Customer-Oriented Supply Support

Our professional sales team works with customers to understand their application requirements and purchasing needs. We also provide support related to product selection, procurement, logistics and technical communication to help customers coordinate their sourcing activities.

Quality Inspection During Production

Our production operations are supported by professional technicians and quality inspectors. Product samples are tested every two hours as part of the company's quality control practices, helping monitor production quality throughout the manufacturing process.

Contact Us

Changshu Hongyu works with B2B customers to discuss product grades, technical requirements and purchasing needs. Contact our team to learn more about suitable calcium hydroxide options for your process.

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Keep In Touch With Us

Are you sourcing calcium hydroxide for chemical manufacturing, calcium hypochlorite production or another industrial application?


Changshu Hongyu works with B2B customers to discuss product grades, technical requirements and purchasing needs. Contact our team to learn more about suitable calcium hydroxide options for your process.

Mob: +86-15250326132

E-mail: zhou@cshyghw.com

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Frequently Asked Questions About Calcium Hydroxide

Q: What is calcium hydroxide?
Calcium hydroxide is an inorganic compound with the chemical formula Ca(OH)₂ and CAS number 1305-62-0. It is commonly known as hydrated lime or slaked lime and is used in various chemical and industrial processes.
Q: Is calcium hydroxide used in the production of calcium hypochlorite?
Yes. Calcium hydroxide is used in the production of calcium hypochlorite. Manufacturers should select a suitable raw material grade based on their production process and technical requirements.
Q: What industries use calcium hydroxide?
Calcium hydroxide is used in chemical manufacturing, water and wastewater treatment, flue gas desulfurization, construction and other industrial applications. Its suitability for food processing and other application-specific uses depends on the grade and relevant requirements.
Q: Does Hongyu offer different calcium hydroxide grades?
Hongyu offers different grades of calcium-based products to address varying customer requirements. Contact the sales team with your intended application and specification to confirm the available calcium hydroxide options.
Q: How does Hongyu control calcium hydroxide quality?
Hongyu uses professional technicians and quality inspectors to support production quality control. Product samples are tested every two hours, and the company accepts BV, SGS or other third-party inspection arrangements.
As a leading supplier of calcifiers in China, we rely on a professional team to provide comprehensive support to our customers. We work closely with our partners to help our customers achieve more.

Contact Us

Phone/whatsapp: +86-15250326132 
phone/whatsapp:+86-15150366616
phone/whatsapp:+86-18357307156
E-Mail: zhou@cshyghw.com
E-Mail:sarah@cshyghw.com
E-Mail:lydia@cshyghw.com
Skype: lousong1030 
Add: Kangbo village, Guli Town, Changshu City, Jiangsu Province.
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