Hongyu Factory Sale 800 Mesh 96% Purity Calcium Hydroxide Powder with Low Price

High Purity Calcium Hydroxide (≥95%) | Fast Delivery | Rubber and Plastic Industry & Flue gas desulfurization , etcHigh-purity calcium hydroxide (typically referring to a purity of ≥95%, with some high-end fields requiring ≥98%) leverages its core advantages of low impurity content, strong reaction stability, and minimal by-product interference to play an irreplaceable key role in the high-end segmented areas of industrial chemistry. It is used in the synthesis of fine calcium salts such as high-purity calcium nitrate, high-purity calcium chloride, and high-purity calcium phosphate. These products are widely applied in fields including food additives, pharmaceutical excipients, and high-end feed additives, which have strict restrictions on the content of heavy metals (e.g., lead, cadmium, mercury) and harmful anions (e.g., sulfate, chloride ion). Therefore, high-purity calcium hydroxide is the core raw material ensuring their quality.SpecificationProduct Information CAS Number: 1305-62-0
Molecular Formula: Ca(OH)2
Molecular Weight: 74.09 g/mol
Appearance: White or off-white odorless powder
Synonyms: Slaked Lime, Hydrated Lime, Calcium Hydroxide Product Overview
Calcium Hydroxide, commonly known as slaked lime or hydrated lime, is a white, odorless powder with the chemical formula Ca(OH)2. Produced through the hydration of calcium oxide (quicklime), it is renowned for its strong alkaline properties and versatility across various industries. Key FeaturesHigh purity calcium hydroxide (Ca (OH)2, commonly known as slaked lime) has irreplaceable application value in fields with strict requirements for purity and performance due to its high purity (usually ≥95%), extremely low content of impurities (such as heavy metals, acid-insoluble substances, etc.), and strong reactivity. The application essence of high-purity calcium hydroxide is to utilize its high alkali purity, low impurity interference, and strong reaction controllability to achieve functions that traditional lime cannot replace in the chemical industry, environmental protection, food and medicine, and other fields. With the improvement of industry standards, its application scenarios will continue to expand towards high-end and refined directions.Technical Specifications

Parameter	Specification	Paramater	Specification
Purity (Ca(OH)2)	≥ 95.0%	Fe	≤ 0.05
Calcium Oxide (CaO)	Approximately 73.0%	Moisture Content	≤ 0.12%
Calcium Carbonate (CaCO3)	≤ 1.7%	pH (1% solution at 25°C)	12.4–12.6
Magnesium Oxide (MgO)	≤ 0.35%	Density	2.24 g/cm³
Acid Insoluble Matter	≤ 0.1%	Solubility	Slightly soluble in water; soluble in glycerol and acids; insoluble in alcohol
Heavy Metals (as Pb)	≤ 0.002%	Mesh Size	≥ 95% passing 325 mesh

Product ApplicationCalcium hydroxide, also known as hydrated lime, is widely used across various industries due to its strong alkalinity, reactivity, and purity. It plays a key role in environmental treatment, such as wastewater neutralization and heavy metal removal. In flue gas desulfurization, it serves as an effective sorbent for SO2 control in power plants and industrial boilers. The construction industry uses it in the formulation of mortar, lime plaster, and as a cement additive. In the chemical sector, it is used for producing calcium salts, petroleum additives, and rubber processing agents. Food-grade calcium hydroxide (E526) is also applied in the food industry as a pH regulator for products like candies and beverages. Additionally, ultra-high purity grades are used in electronic applications, including high-end chemical synthesis and slurry formulations.Company ProfileCHANGSHU HONGYU CALCIUM Co., Ltd.Changshu Hongyu Calcium Co., Ltd., a specialized manufacturer of high-purity calcium compounds based in Jiangsu, China. With over 40 years of experience, we have established ourselves as a reliable supplier of calcium oxide, calcium hydroxide, and nano calcium carbonate, serving various industries including pharmaceuticals, food processing, cosmetics, and chemical manufacturing.Why Choose Us?Factory AdvantageWe offer 24/7 online technical support.
Our in-house laboratory conducts comprehensive testing of calcium-based products to ensure consistency and purity.
Fast shipping & customs clearance support
Customized production and dosing plans are available upon request.High-Purity Raw Materials
Advanced Production Technology
Customized Solutions
Strict Quality Control
Professional Technical SupportPacking & DeliveryCertificationsFAQQ&A
Q: Are you a trading company or a factory? A: We are factory. Q: What is your main product? 
A:Calcium oxide, calcium hydroxide Q: How do you control the quality?
A: Our factory is equipped with professional technicians to control quality, out inspectors take sample 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 time you can make the shipping?
A: We can make the shipping within 7 days after confirming the order. Q: Where is your factory located? How can I visit the factory? 
A: Our factory located in changshu jiangsu .Welcome to visit at any time, we can pick up the nearby machine factory.