Calcium Stearate
What Is Calcium Stearate?
Calcium stearate serves a dual role in various industries. Primarily, it acts as a lubricant within the plastics industry and plays a crucial role as an anti-caking additive in pharmaceuticals and cosmetics.
This substance presents itself as a fine, white to yellowish-white, voluminous powder, characterized by a subtle and distinctive odor. Its texture is notably smooth, devoid of any grittiness.
Our product range encompasses all pharmaceutical grades of calcium stearate. In addition to this, specific calcium stearate grades have been meticulously crafted, boasting high purity and a low filtration index. These specialized grades find their niche as acid scavengers and lubricants in applications involving polyethylene and polypropylene film and fibers, especially in scenarios requiring the use of extremely fine extruder screen packs.
Furthermore, calcium stearate’s versatility extends to functioning as a photoinducer, influencing the structure of plastics, as well as serving as an acid scavenger and enhancing pigment wetting in plastic colorant applications.
Product Description
- FDA License available in IP/BP /USP/ NF/ EP
- EXCiPACT, GMP Certified, KOSHER Certified
- Particle Size
- Specific surface area
- Approved by many MNC’S Globally
- QbD Support
CALSTEL-Calcium Stearate | IP/BP/USP
| Test | Specification |
| Description | 1. A white or almost white powder as IP 2. Fine, white or almost white, crystalline powder as BP 3. Fine, white to yellowish-white, bulky powder having a slight, characteristic odor. Is unctuous, and is free from grittiness.as USP |
| Solubility | 1. Practically insoluble in water and in ethanol (96 %) as BP 2. Insoluble in water, in alcohol, and in ether as USP |
| Identification Test A | 1. The water layer gives the tests for calcium as IP/USP 2. Freezing point: minimum 53 °C, as BP |
| Identification Test B | 1. Comply with the identification test as IP/USP 2. Acid value: 195 to 210. as BP |
| Identification Test C | The retention times of the principal peaks in the chromatogram obtained with the test solution are approximately the same as those of the principal peaks in the chromatogram obtained with the reference solution as BP |
| Identification Test D | The solution gives reaction of calcium as BP. |
| Acidity or alkalinity | Not more than 0.5 ml of 0.01M hydrochloric add or 0.01 M sodium hydroxide is required to change the colour of the indicator as BP |
| Chlorides | Maximum 0.1% as BP |
| Sulphates | Maximum 0.3% as BP |
| Heavy Metals | The color of the test solution does not exceed that of the control (10ppm Pb) as IP |
| Loss on drying | 1. NMT 4% as IP/USP 2. Maximum 6% as BP |
| Assay.( content of calcium) | 1. NLT 9% and NMT 10.5% of calcium oxide (CaO) as IP 2. NLT 6.4% and NMT 7.4% of calcium (Ca) dried substance as BP/U |
Composition of Fatty Acid (By GC)
| Stearic acid | NLT 40% as IP/BP/USP |
| Sum of Steric Acid and Palmitic acid | NLT 90% as IP/BP/USP |
Microbiological Analysis
| Total Aerobic Microbial Count, CFU/g | NMT 1000 |
| Total Combined Yeasts & Molds Count, CFU/g | NMT 100 |
| Staphylococcus aureus, / g | Should be absent |
| Pseudomonas aeruginosa, / g | Should be absent |
| Escherichia coli, / g | Should be absent |
| Salmonella, /10g | Should be absent |
NMT: NOT MORE THAN | NLT: NOT LESS THAN | TAMC: TOTAL AEROBIC MIRCOBIAL COUNT | TYMC: TOTAL YEAST AND MOLD COUNT