High Purity Calcium Hydroxide Powder for Industrial Applications

High-purity calcium hydroxide, also widely known as hydrated lime or slaked lime, is a vital inorganic alkaline material with stable chemical properties, high activity, and ultra-low impurity content. As a professional manufacturer focusing on high-quality calcium hydroxide products, Changshu Hongyu delivers premium-grade calcium hydroxide with purity up to 98%–99.5%, covering customized fineness and specifications to serve environmental protection, chemical, food, construction, agricultural and new energy industries worldwide.

Our high-purity calcium hydroxide is presented as a uniform white fine powder with no peculiar smell, good water dispersibility and strong alkalinity. Different from ordinary industrial-grade hydrated lime, Hongyu’s products strictly control heavy metals, silica and carbonate impurities through refined calcination, hydration and multi-stage purification processes. Featuring stable batch consistency, fine and uniform particle size (325–1250 mesh customizable), the product fully meets high-standard usage requirements of various sophisticated industries.

Core Industrial Applications of High-Purity Calcium Hydroxide

1. Environmental Protection Industry

Environmental treatment is one of the largest application scenarios for high-purity calcium hydroxide. In flue gas treatment, it effectively reacts with sulfur dioxide, hydrogen chloride and other acidic harmful gases in industrial exhaust of power plants, steel mills and garbage incineration plants, achieving efficient desulfurization and denitrification to reduce air pollution. In wastewater treatment, it serves as an excellent pH neutralizer to adjust acidic industrial wastewater, precipitate heavy metal ions such as lead, copper and chromium, and adsorb suspended solids, helping enterprises meet environmental discharge standards stably.

2. Food and Pharmaceutical Industry

With ultra-low heavy metal and impurity content, our high-purity calcium hydroxide can be used as a legal food additive (E526). It is commonly applied as a coagulant for handmade and industrial tofu, a pH regulator for beverages and baked foods, and a fluoride removal agent for drinking water. In the pharmaceutical field, it is used in dental root canal disinfection, antacid raw materials and calcium supplement excipients, featuring safe and stable performance.

3. Chemical and New Energy Industry

It is a key raw material for manufacturing various calcium salts such as high-purity calcium carbonate and calcium citrate, and can be used as a vulcanization auxiliary in rubber processing. In the new energy industry, it acts as a professional pH regulator for lithium iron phosphate battery cathode materials. Its ultra-high purity avoids impurity interference and effectively guarantees the quality and performance of new energy materials.

4. Construction and Agriculture

In the construction field, calcium hydroxide is added to cement and mortar to improve hydration efficiency, enhance building strength and fire resistance. In agriculture, it neutralizes acidic soil, supplements crop calcium elements, improves soil aggregate structure, and can be prepared into pesticide mixtures for crop disease prevention.

Why Choose Changshu Hongyu High-Purity Calcium Hydroxide?

Changshu Hongyu has long been committed to the R&D and production of high-purity calcium hydroxide. We implement strict full-process quality inspection to ensure stable product purity and reliable quality. We support customized processing of different fineness, purity and packaging specifications, with sufficient production capacity and efficient delivery service. Adhering to the concept of quality priority, we provide cost-effective products and professional technical support for global customers, creating stable value for industrial production and environmental treatment projects.

On www.cncalcium.com, we specialize in supplying different purity calcium hydroxide and calcium oxide products that are suitable for a wide range of applications, including the chemical, environmental protection, and agricultural sectors. If you're interested in learning more about calcium hydroxide (slaked lime) and calcium oxide(quick lime), please feel free to visit our official website at www.cncalcium.com.