Dry Hydrated Lime
Hydrochloric Acid Insoluble:≤0.5%
Heavy Metals (Pb):≤0.002%
Whiteness:≥90%–92%
Specific Surface Area:≥20–25 m²/g
Moisture Content:≤1.0%–1.2%
200 mesh:≥95%
250 mesh:≥95%
325 mesh:≥95%
325 mesh:≥96%
Core Selling Point: Every 1% Increase in Purity Enhances Your Value
We are a calcium powder factory with over 3 years of experience. Many customers ask us: what is the real difference between 90-grade calcium and 95-grade dry hydrated lime?
Our answer is simple: it is about the threshold. 90-grade calcium is sufficient for environmental protection applications. However, for food, pharmaceutical, or electronic chemical applications, 95-grade is required. The data below demonstrates the reliability of our dry hydrated lime.
|
Core Indicator |
Our 95-Grade Dry Hydrated Lime |
90-Grade Product |
What This Means for You |
|
Ca(OH)₂ Content |
≥95.0% |
≥90% |
Higher active content, lower dosage required |
|
Hydrochloric Acid Insoluble |
≤0.5% |
≤1.0%–1.5% |
Very low residue, cleaner reaction |
|
Heavy Metals (Pb) |
≤0.002% |
General control |
Suitable for food and pharmaceutical applications |
|
Whiteness |
≥90%–92% |
80%–85% |
No color contamination, suitable for light-colored products |
|
Specific Surface Area |
≥20–25 m²/g |
15–18 m²/g |
Faster reaction rate, higher efficiency |
|
Moisture Content |
≤1.0%–1.2% |
≤1.5%–2.0% |
Better flowability, reduced caking |
Real Case Study: How Our Dry Hydrated Lime Helped a Customer Win a High-End Order
A water treatment chemical company in East China previously used 90-grade calcium. Later, they secured an order from an electronics factory for wastewater treatment.
The customer required that no impurities such as iron or silicon be introduced into the treated water.
They switched to our dry hydrated lime (325 mesh, CH-95-325). As a result, they passed the customer's factory audit and water quality testing on the first attempt. Today, this electronics factory has become a long-term customer.
This case shows that high purity is not just a marketing claim-it is the key to accessing high-end markets.
Detailed Technical Parameters and Product Line of Dry Hydrated Lime
We support OEM and ODM services. The table below shows our mature product line, including food-grade products.
|
Product Code |
Fineness (Mesh) |
Ca(OH)₂ Content |
Pass Rate |
Typical Applications |
|
CH-95-200 |
200 mesh |
≥95% |
≥98% (75μm) |
High-standard water treatment, general chemical synthesis |
|
CH-95-250 |
250 mesh |
≥95% |
≥95% (58μm) |
Fine chemicals, pharmaceutical intermediates, high-grade building materials |
|
CH-95-325 |
325 mesh |
≥95% |
≥98% (45μm) |
Pharmaceutical raw materials, electronic-grade treatment, fast reactions |
|
CH-96-FOOD |
325 mesh |
≥96% |
≥98% (45μm) |
Food additives, pharmaceutical excipients |
Our Guarantee: A Quality Control System Built for Demanding Customers
We implement a batch-by-batch mandatory inspection process. Every batch of dry hydrated lime is tested for Ca(OH)₂ content, acid insoluble matter, heavy metals, whiteness, and specific surface area. No substandard product leaves our factory.
We also provide a quality warranty. All dry hydrated lime products come with a 3-month warranty after receipt. If any content or impurity indicators fail to meet specifications, we will replace the product unconditionally.
We support sample testing as well. Free standard samples (up to 1 kg) are available. For food-grade products, we can also provide compliance documentation.
Storage and Usage Guidelines for Dry Hydrated Lime
Delivery is fast. Standard products ship within 3–5 working days after deposit confirmation. We support EXW, FOB, and DDP terms.
After-sales service is responsive, with replies within 1 hour for any issues. Third-party inspections such as SGS and BV are accepted.
Storage note: Due to its large specific surface area, dry hydrated lime easily absorbs moisture and carbonates. Please store it in a cool, dry place and keep it elevated from the ground. Seal the bag tightly after opening. For 325-mesh products, it is recommended to use within 2 months.
Safety precautions: This product is alkaline. Please wear a dust mask, protective goggles, and alkali-resistant rubber gloves during handling.
Choosing our dry hydrated lime means securing a high-purity supply chain from raw materials to finished products, with full batch testing data, strict heavy metal control, and access to high-end applications in food and pharmaceutical industries.
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