Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

WACKER Hydrophilic Fumed Silica HDK N20PHARMA

Leveraging advanced thermo-mechanical properties, Wacker HDK N20 PHARMA is a pharmaceutical-grade hydrophilic fumed silica with 175-225 m²/g surface area and ≥99.8% SiO₂ purity. Its nano-structured particles (7-40nm) enhance powder flowability and liquid thickening, compliant with EP/USP/NF pharmacopeias (produced under ISO 9001, ISO 14001, FSSC 22000, and IPEC standards) for tablet, capsule, and liquid formulations

Features Of WACKER Hydrophilic Fumed Silica HDK N20PHARMA

  1. Pharma-Safe: EP/USP/NF certified, ultra-low heavy metals (As<3ppm, Pb<25ppm), GMP-compliant

  2. Flow Control: 0.1-1% dosage reduces angle of repose by 30%, eliminating hopper bridging

  3. Thixotropic Efficiency: Thixotropic index 2.0-2.5 in liquids with 0.5-5% adjustable viscosity

  4. Fast Disintegration: Cuts tablet disintegration time by 40% as a disintegrant

  5. Process Stability: <5% batch variation, 24-month shelf life at 50℃

Typical Applications Of WACKER Hydrophilic Fumed Silica HDK N20PHARMA

  1. Tableting: Improves powder flow (e.g., acetaminophen blend angle of repose from 55° to 35°), reducing capping

  2. Capsule Filling: Prevents API segregation, +25% filling uniformity

  3. Liquid Formulations: Thickens syrups/suspensions, extends stability to 36 months

  4. Wet Granulation: +15% yield as anti-adherent in granulation

  5. Topicals: Enhances thixotropy in creams/gels, +20% spreadability

Specifications Of WACKER Hydrophilic Fumed Silica HDK N20PHARMA

Chemical TypeHydrophilic fumed silica
AppearanceFluffy white powder
Surface Area (BET)175-225 m²/g
Primary Particle Size7-40 nm
SiO2 Content≥99.8%
Ignition Loss (1000℃)<1.5%
Bulk Density~40 g/L
pH (4% aqueous)3.8-4.3
Moisture Content<1.5%
Packaging10kg/moisture-proof bag, 150kg/big bag


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