Factory Direct Sale 90% Purity Low Price Calcium Hydroxide Lime Powder for Agricultural Applications

I. Product Introduction

This product is 90% purity calcium hydroxide (commonly known as slaked lime), with the chemical formula Ca(OH)₂, specially formulated for agricultural soil improvement. It appears as a white fine powder with no caking and no obvious impurities, complying with the industrial standard HG/T 4120-2009. R&D and produced exclusively for acid soil amelioration, it balances practicality and economy, making it a cost-effective choice for farmers, agricultural cooperatives and agricultural bases to improve soil quality and increase crop yields.

Core Advantages: The purity is stably maintained at 90% with low impurity content, delivering a soil improvement effect far superior to ordinary low-purity products; cutting out intermediate circulation links, we offer factory-direct prices to end users, achieving "high quality at an affordable price" and solving the problem of soil acidification at a lower cost.

II. Core Efficacy

Neutralize acidity and solve the problem of soil acidification

90% high-purity calcium hydroxide can quickly release hydroxide ions (OH⁻) that undergo a neutralization reaction with hydrogen ions (H⁺) in acid soil, efficiently adjusting the soil pH value. Experiments show that applying 1.5 tons of calcium hydroxide per hectare can raise the pH value of acid soil by 0.8 units and maintain a stable buffering effect for more than 5 years, with the improvement efficiency increased by over 30% compared with low-purity products with a purity of less than 80%.

Improve soil structure and enhance soil fertility

Calcium ions (Ca⊃2;⁺) in the product can combine with the negative charges on the surface of soil colloids, promoting the agglomeration of soil clay particles to form stable aggregates. This significantly increases soil porosity by 18%-25%, enhances the water-holding and air-permeable capacity of the soil, improves soil compaction, and enables crop roots to take root and absorb nutrients more easily. Meanwhile, calcium ions can activate the activity of laccase and peroxidase in the soil, accelerate the decomposition of lignin and the formation of humus, increase soil organic matter content, and further boost soil fertility.

Inhibit bacteria and prevent diseases, reduce pesticide usage

The alkaline environment created by calcium hydroxide can effectively inhibit the activity of pathogenic bacteria such as Fusarium in the soil, reducing the incidence of soil-borne diseases by more than 50%. It can also kill harmful bacteria and insect eggs in the soil, reducing the breeding of crop diseases and pests. When used with pesticides, it can also help enhance the bactericidal effect, indirectly reducing pesticide consumption and planting costs, and facilitating the development of green agriculture.

                     

     

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 Company Profile

Changshu Hongyu Calcium Co., Ltd. was founded in 1984. The company has always been focused on the research, development and production of three major series of products: calcium oxide, calcium hydroxide and calcium carbonate, with a daily output of 600 tons. After more than 40 years of professional accumulation, relying on advanced production technology and strict quality control, the company has accumulated rich production experience. Our products are of high purity and low impurity, and are widely used in various fields such as chemical industry, environmental protection, agriculture and construction. With high-quality products and a good market reputation, our products are not only favored in the domestic market, but also exported to well-known enterprises in Southeast Asia, the Middle East, Africa and other regions, becoming a trusted choice for many international customers.

We have our own mine in Hubei Province, and in 2024, we invested to establish a new company: Carlison New Materials (Jingshan) Co.,Ltd., which covers an area of 40,000 square meters. The new company specializes in the production of fine chemical, pharmaceutical and food-grade calcium oxide and calcium hydroxide products. Changshu Hongyu will continue to adhere to the concept of innovation, quality and service, constantly enhance its competitiveness, provide high-quality calcium compound products and services for more industries, and work with all sectors to create a better future.

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 Certifications

 Product Photos

III. Why Choose Our 90% Purity Calcium Hydroxide? (Core Embodiment of High Cost-Effectiveness)

More reliable quality

We select high-calcium limestone as the raw material and adopt advanced low-temperature calcination technology to eliminate adulteration with inferior raw materials. Each batch of products undergoes professional testing and can only be delivered from the factory if the purity meets the standard, ensuring peace of mind in use.

Higher cost-effectiveness

Our factory-direct sales model cuts out middlemen such as distributors and agents, passing on profits to end users; the 90% high-purity formula reduces the dosage by 15%-20% compared with low-purity products, which translates to an approximate 20% reduction in soil improvement cost per hectare.

More convenient to use

The product features uniform fineness and good fluidity, and can be directly broadcast or applied in rows, or mixed with water for foliar spraying and root irrigation. It is compatible with various agricultural fertilization equipment, easy to operate without professional skills, and can be directly used by farmers. It is not prone to caking; for storage, just keep it sealed in a cool and ventilated place with a shelf life of up to 1 year.

Wider applicability

It can be used in various farmlands such as paddy fields, wheat fields, vegetable greenhouses, orchards and tea plantations, and is suitable for a variety of crops including tomatoes, peppers, citrus, apples, rice, wheat and tea. It provides a one-stop solution to three major problems: acid soil improvement, crop calcium supplement and soil disinfection, boasting extremely strong practicality.

Safer and more environmentally friendly

As a natural inorganic compound, this product contains no toxic and harmful substances. It degrades without producing pollutants, causing no harm to soil, water sources and crops, nor affecting the quality and safety of agricultural products. It meets the development needs of green agriculture and can be used with confidence for a long time.

Production Workshops

Our Advantages

We have our own mine in Hubei Province, which endows us with the following advantages:

• Stable Raw Material Supply: Owning our own mine ensures a stable supply of raw materials for calcified substances. This helps to avoid production interruptions caused by issues such as fluctuations in the raw material market and supply shortages. It guarantees the smooth progress of production plans and maintains a stable product output, enabling us to better meet customer needs and enhance customer satisfaction.

• Controllable Raw Material Quality: Our company can directly manage and monitor the mining process of the mine, and strictly control the quality of raw materials. We are able to select appropriate ore grades and qualities according to production requirements, ensuring that the mined ore meets the high standards of our products. This provides a solid foundation for producing high-quality calcified substance products and helps to enhance the market competitiveness of our products.

• Cost Advantage: Obtaining raw materials from our own mine reduces intermediate procurement links and lowers procurement costs. Moreover, in the long run, a stable raw material supply also enables our company to take the initiative in cost control and avoid the risk of cost increases due to fluctuations in raw material prices, thereby improving the company's economic benefits and profitability.

FAQ

Q: Are you a trading company or a factory?
A: We are a factory.

Q: What are your main products?
A: Calcium oxide, Calcium hydroxide, Light calcium carbonate, Heavy calcium carbonate，Nano calcium carbonate

Q: May I get a sample before placing order?
A:  Yes, sample are available. Sample are for free and you just need to bear the freight.

Q: Where is your factory?
A: Our factory is located in Changshu, Jiangsu Province, welcome to visit us at any time.

Q: Is there any possible to use my appointed lable or package?

A: Yes, If need, we would like to use lable or package according to your requirement.

Q: How do I contact you to purchase a product?
A: Below is our contact information, please feel free to contact us at any time.