Overview
HDK N20 Nutrition is a highly pure, hydrophilic fumed silica supplied as a white colloidal powder. As one of the recommended international brand products in our auxiliary agent range, this fumed silica grade is supplied with supply chain resource support for formulators sourcing a high-purity anti-caking agent, thickener, and free-flow additive for powders, blends, and liquid systems.
Specification
| Property | Condition | Value | Method |
|---|---|---|---|
| BET surface | — | 175 – 225 m²/g | DIN ISO 9277 DIN 66132 |
| Tamped density | — | approx. 40 g/l | DIN EN ISO 787-11 |
| pH | — | 3.8 – 4.3 | DIN EN ISO 787-9 |
| Sieve residue | — | < 0.03 % | DIN EN ISO 787-18 |
| Loss on drying | — | < 1.5 % | DIN EN ISO 787-2 |
| Content Arsenic (As) | — | < 1 ppm | PV20424 |
| Content Lead (Pb) | — | < 3 ppm | PV20424 |
| Content Mercury (Hg) | — | < 1 ppm | PV20424 |
| Content Silicone dioxide | — | > 99 % | PV20433 |
General Characteristics
| Property | Condition | Value | Method |
|---|---|---|---|
| Content SiO2 | – | > 99.8 % | DIN EN ISO 3262-19 |
| Density | 20 °C / 68.0 °F | approx. 2.2 g/cm³ / approx. 18.36 lb/gal | – |
| Loss of weight | – | < 2.0 % | DIN EN ISO 3262-19 |
| Silanol group density | – | 2 SiOH/nm² | – |
Applications in Food and Nutrition Formulations
HDK N20 Nutrition is developed for use in food and nutritional products. It functions as an anti-caking agent, thickener, and free-flow additive in powders, blends, and liquid systems. Manufactured with consistent quality control, this fumed silica grade is positioned to support improved flowability, stability, and dispersion performance in dietary supplements, flavors, vitamins, and other sensitive formulations.
With a BET surface area of 175 to 225 m²/g and a tamped density of approximately 40 g/l, this fumed silica grade has a fine, low-density particle structure that formulators typically look for when preventing caking and clumping in powder blends. The pH range of 3.8 to 4.3 and sieve residue below 0.03 percent are additional quality markers relevant to formulators working with sensitive nutritional matrices.
Why High Purity Matters for HDK N20 Nutrition
Trace heavy metal content is a key quality concern for any additive used in food and nutrition applications. HDK N20 Nutrition is manufactured with arsenic below 1 ppm, lead below 3 ppm, and mercury below 1 ppm, alongside a silicon dioxide content above 99 percent. These specifications are relevant for formulators who must document ingredient purity when qualifying an anti-caking or free-flow additive for dietary supplement, flavor, or vitamin production.
The general characteristics data, including SiO2 content above 99.8 percent and a silanol group density of approximately 2 SiOH per nm², describe the surface chemistry that governs how this fumed silica interacts with moisture and other formulation components. Loss on drying below 1.5 percent and loss of weight below 2.0 percent are additional indicators of the consistent, low-moisture powder formulators can expect batch to batch.
What to Consider When Sourcing HDK N20 Nutrition
When sourcing a fumed silica for food or nutrition applications, formulators typically evaluate BET surface area, tamped density, and trace heavy metal content, alongside consistent batch-to-batch documentation. Working with a supplier that can provide current specification sheets and responsive technical support can help reduce qualification time when approving a new anti-caking or free-flow additive for a production line.
Because optimal dosage depends on the specific powder blend or liquid system, formulators should run small-scale trials before finalizing a dosage for full-scale production of dietary supplements, flavors, vitamins, or related sensitive formulations.
General Handling and Storage Guidance
As with most fine, high-surface-area powders, this product should be kept in its original, tightly sealed container, stored in a cool, dry location away from direct sunlight and moisture, and used within the manufacturer’s recommended shelf life.
Shelf life and specific storage recommendations vary by batch and packaging format, so formulators should always confirm current shelf life, recommended storage conditions, and any handling precautions against the latest technical data sheet and SDS for the specific batch of HDK N20 Nutrition they are working with.
Where to Source This Product
Thousands Chemicals connects formulators with HDK N20 Nutrition and related auxiliary agent products through our digital B2B marketplace. Fumed silica particle size and surface area are commonly characterized using test methods published by organizations such as ISO. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
Documentation We Can Provide
For buyers evaluating this fumed silica for a new food, nutrition, or dietary supplement formulation, our team can help arrange the current technical data sheet and safety data sheet. Having this documentation in hand before finalizing a formulation can help avoid delays later in your qualification or approval process.
FAQ
What is HDK N20 Nutrition used for?
It is a highly pure, hydrophilic fumed silica developed for food and nutritional products, functioning as an anti-caking agent, thickener, and free-flow additive in powders, blends, and liquid systems.
What is the BET surface area of HDK N20 Nutrition?
The BET surface area is 175 to 225 m²/g, with a tamped density of approximately 40 g/l.
Is HDK N20 Nutrition suitable for dietary supplement production?
Yes, it is manufactured with heavy metal content below regulatory trace limits and a silicon dioxide content above 99 percent, which are relevant purity markers for dietary supplement, flavor, and vitamin formulations.
Can you provide technical documentation and bulk pricing?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for HDK N20 Nutrition
Contact our team for a quote, technical data sheet, or SDS for this fumed silica additive. We support bulk supply and global shipping for formulators sourcing HDK N20 Nutrition for food, nutrition, and dietary supplement applications.
