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CAS 7631-86-9 Hydrated Silica
Classification :
Toothpaste Silicon Dioxide
Keywords :
CAS 7631-86-9 Hydrated Silica
PRODUCT DETAILS
1. Product Advantages
This is specialty toothpaste‑grade hydrated silica with CAS No. 7631‑86‑9, a mainstream core basic raw material for the oral‑care industry. It strictly meets GB/T 32673‑2016, FDA and FCC standards, with specifications fully aligned with internationally‑recognized technical indicators for Hydrated Silica.
Featuring a high‑purity amorphous hydrated structure, it delivers high silica content, extremely low impurities and stable inert chemical properties. It is free of fluorescent substances, excessive heavy metals and irritating residues. The powder has uniform particle size and fine texture, offering balanced abrasive cleaning performance and excellent paste compatibility. It works perfectly with diverse toothpaste formula systems and will not react with fluorides, humectants, plant‑derived ingredients or whitening additives inside toothpaste.
It exhibits outstanding storage stability under high‑ and low‑temperature conditions, with no water separation, stratification or caking. Suitable for manufacturing all categories of toothpaste, it is a commonly‑used, compliant and cost‑effective core basic raw material for toothpaste manufacturers worldwide.
2. Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Hydrated Silica CAS 7631‑86‑9 for Toothpaste |
| Appearance | White, fine and fluffy powder, free of caking and discoloration |
| CAS Number | 7631‑86‑9 (internationally‑recognized standard number) |
| Silica Content | ≥98.2% |
| pH Value | 6.5‑7.6 (5 % suspension, general‑formula compatible value) |
| Volatile Matter at 105 ℃ | ≤9.5% |
| Total Salt Content | ≤1.1% |
| Typical Dosage | 12%‑28% |
| RDA Value | 50‑120 (general controllable range) |
| Compliant Standards | GB/T 32673, FDA, FCC, CAS Standard, HALAL, KOSHER |
| Packaging | 10 kg / 15 kg / 20 kg food‑grade valve paper bags |
| Lead Time | 5‑10 days for regular stock items |
| Sample | Free samples available |
| Production Capacity | 10 000‑ton‑per‑year standardized production line |
3. Application Scenarios
As a universal industry‑standard raw material, it is widely applicable to conventional toothpaste, functional toothpaste and general daily‑chemical oral‑care products, including basic cleaning toothpaste, whitening toothpaste, anti‑cavity fluoride‑containing toothpaste, herbal toothpaste and household‑use toothpaste.
Fully compliant with international CAS standards, it supports global import and export trade and satisfies standardized production demands of domestic and overseas daily‑chemical enterprises. It is suitable for mass production of affordable consumer‑grade toothpaste and mid‑range functional toothpaste, featuring broad compatibility and low compliance risks.
4. Factory Strength
Our company holds special production qualifications for CAS 7631‑86‑9 hydrated silica. Mass production is carried out fully in line with international raw‑material specification standards, delivering consistent batch‑to‑batch parameters with minimal deviation.
Equipped with a complete set of physical‑chemical analyzers and compliance‑testing instruments, we rigorously verify CAS‑standard and food‑grade safety indicators to guarantee dual compliance for both domestic and international markets.
Our 10 000‑ton‑per‑year standardized production line enables stable mass supply, supporting regular mass production and customized bulk orders. It caters to large‑volume procurement and long‑term cooperation from global daily‑chemical manufacturers. Complete customs‑declaration, quality‑inspection and compliance documents can be provided.
5. Shipping & Packaging
- Standard packaging: 10 kg / 15 kg / 20 kg food‑grade sterile valve paper bags marked with CAS standard number.
- Moisture‑proof design: food‑grade PE inner liner plus composite waterproof outer layer; double‑layer sealing prevents moisture ingress and caking.
- Storage & transportation: store in cool, dry and shaded environment; dust‑free handling for shipment; shelf life: 24 months.
- Marking specifications: outer packages show CAS number, applicable standards and quality‑test parameters; multi‑language shipping marks for foreign trade are customizable.
6. FAQs
Q: Is this product suitable for export‑oriented toothpaste manufacturing?
A: Fully suitable. Manufactured in strict accordance with the international CAS 7631‑86‑9 standard and complying with multiple international certifications including FDA and FCC, it comes with full documentation with no export‑compliance barriers.
Q: What is the difference compared with ordinary silica?
A: This is oral‑care‑specific compliant hydrated silica. Its specifications are precisely matched to international toothpaste‑raw‑material standards with strict impurity control and superior stability. Different from industrial‑grade silica, it can be directly applied in food‑contact oral‑care products.
Q: Can it be used with various fluoride‑containing formulas?
A: Fully compatible. Thanks to its inert and stable chemical nature, it will not react with sodium fluoride, sodium monofluorophosphate and other fluorides, and fits all conventional toothpaste formula systems.
7. Qualifications & Honors
- FSSC22000 Food‑Safety‑System Certification
- ISO22000:2018 Food‑Safety‑Management‑System Certification
- ISO9001:2015 Quality‑Management‑System Certification
- SHC HALAL Certification
- OU KOSHER Certification
- FDA, FCC International Raw‑Material Compliance Certification
- Food‑Additive Production License
- National High‑Tech Enterprise
- Patent for Mass Production of Standardized Oral‑Grade Silica
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
