Calcium Stearate
Calcium stearate occurs as a fine, white to yellowish-white, bulky powder having a slight, characteristic odor. It is unctuous and free from grittiness.
| Supplier | CD Formulation |
|---|---|
| Product # | PE-0622 |
| Pricing | , Inquire for price |
| product1 | Suspending Agents |
| Molecular Formula | C36H70CaO4 |
| Molecular Weight | 607.03 (for pure material) |
| Applications | Calcium stearate is primarily used in pharmaceutical formulations as a lubricant in tablet and capsule manufacture at concentrations up to 1.0% w/w. Although it has good antiadherent and lubricant properties, calcium stearate has poor glidant properties. Calcium stearate is also employed as an emulsifier, stabilizing agent, and suspending agent, and is also used in cosmetics and food products. |
| Safety | Calcium stearate is used in oral pharmaceutical formulations and is generally regarded as a relatively nontoxic and nonirritant material. |
| Synonyms | Calcii stearas; calcium distearate; calcium octadecanoate; Deasit PC; HyQual; Kemistab EC-F; octadecanoic acid, calcium salt; stearic acid, calcium salt; Synpro |
| CAS Number | 1592-23-0 |
| Category | Tablet and Capsule Lubricant; Emulsifiers; Stabilizers; Suspending Agentss |
| UNII | 776XM7047L |
| Chemical Name | Octadecanoic acid calcium salt |
| Grade | Pharmceutical Excipients |
| Administration route | Oral |
| Dosage Form | Oral capsules and tablets |
| Stability and Storage Conditions | Calcium stearate is stable and should be stored in a well-closed container in a cool, dry place. |
| Source and Preparation | Calcium stearate is prepared by the reaction of calcium chloride with a mixture of the sodium salts of stearic and palmitic acids. The calcium stearate formed is collected and washed with water to remove any sodium chloride. |