Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
High Whiteness Precipitated Silica
Classification :
Toothpaste Silicon Dioxide
Keywords :
High Whiteness Precipitated Silica
PRODUCT DETAILS
1. Product Advantages
This is precipitated silica specially designed for toothpaste with superior whiteness. Produced by high-purity synthesis and fine-powder purification technologies, it strictly complies with GB/T 32673-2016 and international oral-ingredient standards, featuring three core strengths: ultra-high whiteness, high purity and excellent formulation compatibility.
The powder is pure white without discoloration, yellowing or grey speckles, with stable outstanding whiteness and silica content ≥98.8%. Multiple purification procedures strictly control trace impurities and heavy-metal residues. The powder is uniform, fine and highly dispersible.
It delivers good abrasive cleaning performance and paste compatibility with customizable RDA value ranges, suitable for whitening, cleaning and tooth-care toothpaste formulations. The compounded paste presents pure white, translucent and premium texture, and will not turn yellow or darken during long-term storage. It effectively solves common defects of ordinary silica such as color deviation, paste yellowing and uneven tint, and serves as the preferred core raw material for high-end visual-focused toothpaste.
2. Product Specifications
| Item | Details |
|---|---|
| Product Name | High Whiteness Precipitated Silica |
| Appearance | Ultra‑high‑whiteness pure‑white fine powder, free of discoloration and yellowing |
| Particle Size Range | 5‑14 μm (uniform fine particle size) |
| Silica Content | ≥98.8% |
| Whiteness | ≥96% (industry ultra‑high whiteness standard) |
| pH Value | 6.5‑7.7 (neutral for full‑range formulation compatibility) |
| Loss on Drying (105 ℃) | ≤9.2% |
| Total Salts | ≤1.0% |
| Typical Dosage | 15%‑28% |
| RDA Value | 50‑120 (multiple customizable ranges available) |
| Compliance Standards | GB/T 32673, FDA, FCC, USP |
| Packaging | 10 kg / 15 kg / 20 kg food‑grade clean paper bags |
| Lead Time | 5‑10 days for stock items |
| Sample | Free samples available |
| Production Capacity | 10,000‑ton‑per‑year high‑purity precipitation production line |
3. Application Scenarios
Mainly targeted at high-end appearance-oriented toothpaste, widely used in pure-white paste toothpaste, transparent brightening toothpaste, stain-removing whitening toothpaste, luxury fragrance toothpaste and gift-grade premium toothpaste.
Its ultra-high whiteness endows toothpaste with pure and translucent visual quality, eliminating paste yellowing, grey tint and dullness caused by conventional raw materials and greatly upgrading product grade. Meanwhile, it provides excellent cleaning and polishing performance to gently remove surface pigment stains, tea stains and tobacco stains. Balancing visual appeal and functional performance, it meets manufacturing demands of high-end domestic daily-chemical brands and export-grade oral-care products.
4. Factory Strength
Our company adopts proprietary processes for fine-powder purification and whiteness optimization. Multi-stage filtration, high-temperature purification and fine classification technologies stably guarantee ultra-high whiteness and zero speckle performance.
Equipped with high-precision whiteness meters, color-difference analyzers and high-purity component detectors, we test powder color and purity batch-by-batch to avoid color deviation and yellowing. A special whiteness control system ensures batch-to-batch whiteness difference ≤0.5 for highly consistent color performance.
Our 10,000-ton-level high-purity production line enables stable mass supply for premium toothpaste brands, delivering raw materials with steady color and uniform quality to satisfy global high-end daily-chemical market requirements.
5. Packaging & Shipment
• Standard Packing: 10 kg / 15 kg / 20 kg food-grade dedicated clean paper bags, dust-free and contamination-free.
• Moisture-proof Design: Double-layer sealed moisture-proof packaging to prevent powder moisture-absorption, discoloration and dull tint.
• Storage & Transportation: Store in cool, dry, dark and sealed conditions; keep away from dust pollution. Shelf life: 24 months.
• Marking: Marked with special high-whiteness parameters and color standards; custom premium-brand-specific packaging is supported.
6. FAQ
Q: Will the high-whiteness powder turn yellow or discolor during long-term storage?
A: No. Subject to high-purity passivation treatment, it contains no oxidizable impurities. With sealed moisture-proof storage and transportation, its color remains stable without yellowing, greying or dullness within the 24-month shelf-life period.
Q: Will it affect the color rendering effect of colored transparent toothpaste?
A: No. The powder is pure-white and translucent with no interfering tint. It can perfectly restore the inherent hue of toothpaste pigments, delivering bright, even and vivid colored paste.
Q: Can whiteness be customized?
A: Yes. We can match different whiteness grades according to product appearance design requirements to realize pure-white, translucent, soft-glow and other paste textures.
7. Certifications & Honors
• FSSC 22000 Food Safety System Certification
• ISO 22000:2018 Food Safety Management System
• ISO 9001:2015 Quality Management System
• FDA & FCC International Compliance Certifications
• HALAL & KOSHER Dual Certifications
• National High-Tech Enterprise
• Specialized, Refined, Differential & Innovative Enterprise
• Patents for Specialized Powder Whiteness-Optimization R&D
Packaging and Shipping
Zhongqi (Guangdong) Silicon Materials Co., Ltd., with over 20 years of experience in the food-grade silica field, is a national high-tech enterprise and a Guangdong Province specialized and innovative enterprise. Trusted by numerous international food giants, it is a leader in high-end food-grade silica. Shandong Zhonglian Chemical Co., Ltd. is Zhongqi's sole officially authorized overseas sales subsidiary.
laboratory
The company has established a world-leading R&D and intelligent manufacturing system, built GMP-standardized workshops, constructed 10,000-ton intelligent production lines, established a national-level testing center equipped with cutting-edge international equipment, and built its own high-standard microbiological testing laboratory. From raw material screening to finished product delivery, the entire process strictly adheres to domestic and international food safety management certifications, achieving simultaneous leadership in both "quality" and "quantity."
Customer Visit
We are committed to silicon dioxide for 20 years, our product is well know in the world and cooperate with some Fortune 500 companies, such as the Nestlé，Yihai Kerry，COFCO，China Resources，Budweiser，Symrise, and so on.
HONOR
In 2021, the company was listed on the Guangdong Stock Exchange, marking the beginning of its international expansion. Today, Zhongqi Silicon Industry, with an open vision, empowers the global food industry's safety system with the power of "Made in China." Going forward, the company will continue to focus on molecular-level safety to ensure peace of mind and, with a global perspective, to create a purer quality of life. Because true strength lies in making invisible protections visible to the world.
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Jinan City, Shandong Province,China
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Guangzhou City, Guangdong Province
