UNISIL HDR (HYDRATED SILICA)
GENERAL INFORMATION
UNISIL HDR is a synthetic hydrated silica produced via a precipitation process. It offers excellent compatibility, uniform particle size distribution, and controlled abrasiveness, making it ideal for toothpaste and personal care formulations.
PRODUCT DESCRIPTION
| Property | Description |
|---|---|
| Chemical Name | Silicon Dioxide (Hydrated Silica) |
| CAS Number | 112926-00-8 / 7631-86-9 |
| Appearance | White free-flowing powder |
| Odor | Odorless |
| pH (5% solution) | 6.0 – 8.0 |
| Loss on Drying | Max. 7% |
| Moisture Content | Max. 6% |
APPLICATION AREAS
| Industry | Application Examples | Purpose |
| Oral Care | Toothpaste, tooth gels | Thickener, abrasive, polishing |
| Personal Care | Facial cleansers, scrubs | Mild exfoliation, rheology agent |
| Cosmetics | Foundations, powders | Matting agent, texture enhancer |
TECHNICAL SPECIFICATIONS
| Property | Value Range |
| Particle Size (D50) | 5 – 12 μm |
| Specific Surface Area | 100 – 200 m²/g |
| Refractive Index | ~1.45 |
| Oil Absorption | 100 – 180 g/100g |
| Bulk Density | 180 – 300 g/L |
ADVANTAGES
High purity and safety for oral care applications
Excellent thickening and polishing properties
Uniform particle size for consistent performance
Chemically inert and stable
Compatible with active ingredients and flavors
PACKAGING / STORAGE
| Property | Description |
| Packaging Options | 10 kg / 20 kg paper or polyethylene bags |
| Storage Conditions | Store in a dry, cool place, away from moisture |
| Shelf Life | Minimum 24 months |
| Transportation | Non-hazardous material |
SAFETY / HANDLING
Avoid inhalation of dust
Use personal protective equipment during handling
Avoid eye contact; rinse with water if exposed
Refer to MSDS for complete safety information
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