Zinc Stearate, also known as Stearic Acid Zinc Salt, Octadecanoic Acid, Zinc Dioctadecanoate, and Zinc Distearate, has the chemical formula C36H70O4Zn or [CH3(CH2)16COO]2Zn. It appears as a fine, white, soft powder with a slight, characteristic odor. It is insoluble in water, ethanol, and ether; soluble in benzene, acids, and common solvents when hot. It can be produced in a variety of different ways. Commonly, the Zinc Sulfate solution is reacted with the Sodium Stearate solution to produce Zinc Stearate, which is then washed and dried.
Lab grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity like the ACS Grade, the USP Grade, or the FCC Grade. The Lab Grade is also known as Laboratory Reagent (LR) and Chemically Pure (CP). Lab Alley’s Zinc Stearate, Lab Grade is recommended for educational institutes, research labs, and commercial applications.
Zinc Stearate, also known as Stearic Acid Zinc Salt, Octadecanoic Acid, Zinc Dioctadecanoate, and Zinc Distearate, has the chemical formula C36H70O4Zn or [CH3(CH2)16COO]2Zn. It appears as a fine, white, soft powder with a slight, characteristic odor. It is insoluble in water, ethanol, and ether; soluble in benzene, acids, and common solvents when hot. It can be produced in a variety of different ways. Commonly, the Zinc Sulfate solution is reacted with the Sodium Stearate solution to produce Zinc Stearate, which is then washed and dried.
Lab grade chemicals possess reasonable purity but do not comply with any official standard for quality or purity like the ACS Grade, the USP Grade, or the FCC Grade. The Lab Grade is also known as Laboratory Reagent (LR) and Chemically Pure (CP). Lab Alley’s Zinc Stearate, Lab Grade is recommended for educational institutes, research labs, and commercial applications.
- Plastic manufacturing
- Release agent and processing aid during rubber vulcanization
- Matting and dispersion agent in paints and coatings
- Improve water repellency and ease of mixing concrete
- Used to improve the surface texture and water resistance of paper and cardboard
- Plastics
- Rubber
- Paints and Coatings
- Construction
- Paper
Product Information
| CAS | 557-05-01 |
|---|---|
| Synonyms | Stearic Acid Zinc Salt, Octadecanoic Acid, Zinc Dioctadecanoate, Zinc Distearate |
| Assay | 34.0% - 40.0% of Calcium |
| Grade | Lab Grade |
| Melting point | 118 - 128 °C / 244.4 - 262.4 °F |
| Solubility | Insoluble in Water |
| Auto-ignition temperature | 371 °C / 699.8 °F |
| Molecular formula | [CH3(CH2)16COO]2Zn |
| Molecular weight | 632.33 |
| Arsenic (As) | Max 1.5 ppm |
| Autoship Available | Yes |
| Chloride (Cl) | Max 250 ppm |
| Heavy metals | Max 10 ppm |
| Lead (Pb) | Max 2 ppm |
| Loss on drying | Max 6.0% at 105ºC |
