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Wetting agent

Wetting agent
Dissolution of the dry powder in hard gel capsules requires the displacement of the air surrounding the powder. To enable this displacement, a wetting agent is added, which reduces interfacial tension between API and dissolution medium, thus accelerating the dissolution of the particles. A wetting would reduce the contact angle leading to wetting and spreading of liquid over the particle
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Wetting agent
Wetting agent
Primary function
Wetting agent
Typical use level
1 - 2%
Physical data
Sodium Lauryl Sulfate

  • Appearance: White or cream to pale-yellow coloured crystals, flakes or powders
  • HLB: ~ 40

Benefits / Claims
Sodium lauryl sulfate, which is a commonly used wetting agent for hard capsule formulations is effective in both alkaline and acidic conditions.
Suitable for

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