Pharmaceutical Hydrophilic Fumed Silica Amorphous Sio2 Silica Thickener

Pharmaceutical Grade Hydrophilic Fumed Silica ( HN-200)

Pharmaceutical Grade Hydrophilic fumed silica HN-200 is a hydrophilic fumed silica with a specific surface area of 200m2/g, and it is synthetic, hydrophilic, amorphous silica, produced via flame hydrolysis.

Characteristic:

• Medium specific surface area
• High purity
• Aggregated structure
• Submicron particle size
• Low bulk density
• Hydrophilic surface chemistry

  Physico-chemical Data ( Model: HN-200)
  Properties	Typical Value	Standardization
  BET surface area [m2/g]	200 ± 25	GB/T10722
  Loss on drying [%]	< 1.5	GB/T1717
  PH value	3.8 – 4.5	GB/T5211.3
  SiO2 content	≥99.8%	GB/T20020
  Tamped density [g/L]	25 ~ 60	GB/T5211.14
  Loss on ignition	≤ 2.5	GB/T20020
  Sieve residue (45µm)(%)	<0.05	GB/T5211.4
  Carbon content [wt%]	<0.2	GB/T20020

Application:

• RTV silicone sealant, HTV silicone rubber
• Paints and coatings, ink, pigment
• Unsaturated polyester resins
• Adhesive & sealant
• Thermal insulation material, vacuum insulation panel
• Composites& PVC, storage battery

Functions:

• Rheology and thixotropy control of liquids, binders, polymers, etc.
• Used as anti-settling, thickening, anti-sagging agent
• Free flow and suspension for powder
• Reinforcement in silicone rubber
• Adsorbant

Packing and Storage:

• Packaged in multiple layer kraft paper
• 10kg bags on pallet
• Should be stored in the original packaging in dry
• Protected from volatile substance