Calcium Stearate: Lubricant and Anti-Caking Agent
Calcium stearate is a calcium salt of stearic acid used as a lubricant, flow agent, and anti-caking agent in pharmaceutical tablets, food products, and plastic processing. As a tablet lubricant, it offers an alternative to magnesium stearate in situations where magnesium content must be minimized or where specific compatibility requirements exist.
Product Profile
| CAS Number | 1592-23-0 |
|---|---|
| Molecular Formula | Ca(C₁₇H₃₅COO)₂ |
| Appearance | White, fine, light powder |
| Function | Lubricant / anti-caking agent / release agent |
| Typical Use Level | 0.5–2.0% w/w as tablet lubricant |
| Compendial Grade | EP / USP-NF |
Formulation Applications
In tablet manufacturing, calcium stearate reduces friction between the tablet and die wall during compression and ejection. While less commonly used than magnesium stearate in pharmaceutical applications, it is preferred in certain food supplement and nutraceutical formulations. Like other metallic stearates, it is hydrophobic and excessive use can retard dissolution and disintegration — blending time should be kept short (typically 2–5 minutes) and concentrations minimized. In plastics, it serves as an acid scavenger and internal lubricant. It also finds use as an anti-caking agent in powdered food products and as a release agent in construction materials.
Why Source from TCS
TCS supplies calcium stearate in pharmaceutical and technical grades to formulators across Europe. Available in standard packaging with flexible quantities for R&D through production scale. Contact us with your application and volume requirements.
FAQ
What information should be included in an inquiry for Calcium Stearate –1592-23-0?
A useful inquiry normally includes the product name, target application, estimated quantity, destination market, and any specific documentation or packaging requests.
How is Calcium Stearate –1592-23-0 usually evaluated for sourcing?
This product is positioned for excipient sourcing where formulation fit, dosage form, handling, and repeat purchasing requirements need to be reviewed together with commercial supply conditions.
What documentation and commercial points are commonly reviewed before buying Calcium Stearate –1592-23-0?
For excipient sourcing, teams usually discuss the intended dosage form, formulation role, packaging format, order volume, and the routine documentation needed for qualification and purchasing.
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