High Purity Calcite Powder
Hydrochloric Acid Insoluble:≤ 0.1%
Fe₂O₃ Content:≤ 0.06%
MnO Content:≤ 0.004%
Heavy Metals (Pb/As):Complies with RoHS & GB 9685
Whiteness Stability:Batch variation ≤ ±1.0
200 mesh:≈ 75 μm
325 mesh:≈ 45 μm
400 mesh:≈ 38 μm
600 mesh:≈ 23 μm
800 mesh:≈ 18 μm
1000 mesh:≈ 13 μm
1250 mesh:≈ 10 μm
One Core Selling Point: Defining "High Purity" with Data
We are a calcium carbonate manufacturer with over 3 years of practical production experience. Many customers ask us what makes our "high purity" series different.
Our answer is simple: look at impurity control.
Ordinary calcite powder mainly focuses on whiteness. Our high purity series, however, is designed for customers with strict quality and compliance requirements.
The data below defines what "high purity" truly means in our products.
Core Indicators of High Purity Calcite Powder
|
Indicator |
Our High Purity Series Test Data |
Why This Matters to You |
|
Calcium Carbonate (CaCO₃) Content |
96.5% – 98.0% |
Strictly controlled purity ensures fewer impurities and more stable product performance |
|
Hydrochloric Acid Insoluble |
≤ 0.1% |
Premium-grade impurity control. Prevents particles and improves performance in coatings and adhesives |
|
Fe₂O₃ Content |
≤ 0.06% |
Extremely low iron content prevents yellowing in light-colored products |
|
MnO Content |
≤ 0.004% |
Controls trace manganese, which can affect long-term whiteness stability |
|
Heavy Metals (Pb/As) |
Complies with RoHS & GB 9685 |
Suitable for toys, packaging, and other regulated applications |
| Whiteness Stability | Batch variation ≤ ±1.0 | Stricter than industry standard (±1.5). Ensures consistent color across batches |
Our Confidence: A Quality Control System Built for High-End Applications
We can confidently position our product as "high purity" because we operate a strict, full-process quality control system designed for demanding industries.
Every batch of finished product undergoes 100% inspection, including CaCO₃ content, hydrochloric acid insoluble matter, Fe₂O₃, MnO, and heavy metal content. This is not random sampling - every batch is tested before shipment. No non-conforming product is released from our factory.
We also have real-world application experience. A PVC cable material manufacturer producing export-grade products previously faced yellowing issues in light-colored cable sheaths due to high iron content in fillers, resulting in two container returns.
After switching to our high purity series (800 mesh, Fe₂O₃ ≤ 0.06%), the issue was completely resolved. The customer has since become a long-term partner.
We also provide a clear quality guarantee. All products come with a 3-month quality warranty after delivery. If key purity indicators such as CaCO₃ content or impurity levels do not meet specifications, we will replace the product unconditionally. This guarantee is included in our contract for High Purity Calcite Powder.
High Purity Series: Solutions for Demanding Industries
We support OEM and ODM services. The following product line is designed specifically for high-specification and export-oriented industries.
|
Specification (Mesh) |
Median Particle Size (D50) |
Typical High-End Applications |
Real Customer Feedback |
|
200 mesh |
≈ 75 μm |
High-end feed additives, pet food |
Heavy metals fully compliant for EU and US markets |
|
325 mesh |
≈ 45 μm |
Export-grade artificial marble, engineered stone |
Excellent whiteness stability with no batch color variation |
|
400 mesh |
≈ 38 μm |
Food-contact plastic masterbatch |
Low impurities; meets GB 9685 compliance requirements |
|
600 mesh |
≈ 23 μm |
High-end PVC pipes, automotive interiors |
Low iron content prevents yellowing in light-colored products |
|
800 mesh |
≈ 18 μm |
Export-grade cable materials, high-end rubber |
Stable insulation performance with reliable compliance results |
|
1000 mesh |
≈ 13 μm |
Export coatings, high-end inks |
No particles in film; improved gloss and smoothness |
| 1250 mesh | ≈ 10 μm | Food packaging paper, premium printing inks | Meets food-contact standards with stable performance |
Simple Cooperation Process
First, we provide free samples (up to 5 kg) for testing. You can evaluate impurity levels and performance directly in your production process before placing an order.
Second, delivery is fast. Standard products ship within 3–5 working days after deposit confirmation.
Third, we offer flexible trade terms, including EXW, FOB, and DDP, depending on your requirements.
Fourth, our after-sales team responds within 1 hour for any issue.
Fifth, inspection is fully transparent. We accept third-party inspections from SGS, BV, or any authorized testing agency, and can support customer-defined test items.
Conclusion
Choosing our High Purity Calcite Powder means working with a fully traceable, tightly controlled supply chain, where every batch is backed by laboratory data and strict impurity standards.
It is especially suitable for customers in export markets and high-end applications where consistency, compliance, and purity are critical.
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