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Zinc Stearate

Octadecanoic acid zinc salt

Zinc Stearate
Zinc stearate is used as a lubricant in tablet and capsule formulations at concentrations up to 1.5% w/w. It is used as an alternative lubricant if Magnesium and Calcium Stearate are incompatible with the API
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Zinc Stearate
Zinc Stearate
Primary function
Typical use level
0.5 - 1.5%
Physical data

  • Appearance: Fine, white, bulky, hydrophobic powder, free from grittiness and with a faint characteristic odour.
  • Density 1.09 g/cm³
  • Melting point 120 - 122 °C
  • Particle size distribution: < 44.5 µm

Benefits / Claims
Very good lubrication effect
High stability of your formulation
Improved efficiency of your production: lowering ejection force and protection of punch & dies
Suitable for
Hard Gel Capsules

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