Overview
Lead stearate (CAS 1072-35-1 ), also sold under the trade name Stabinex NC18, is a lead-based metallic soap used primarily as a heat stabilizer and lubricant in PVC and other polymer processing.
Lead distearate functions by neutralizing degradation byproducts at elevated processing temperatures, extending the service life of finished plastic components during industrial manufacturing.
In PVC compounding, it acts as a primary heat stabilizer, preventing discoloration and degradation during extrusion and calendering of cables, pipes, and profiles for construction use.
Rubber processors use it as an internal lubricant and processing aid, reducing friction between compound and equipment surfaces during mixing and molding operations in the factory.
In the plastics industry, it also functions as a mold release agent, improving surface finish and cycle times in high-volume production environments for various technical applications.
Metalworking and industrial lubricant formulators incorporate it into greases and extreme-pressure formulations where its film-forming characteristics reduce wear under heavy loads.
Lead stearate is supplied as a white powder or fine granules. It is available in technical grade, with product specifications typically defined by lead content, acid value, and melting point.
Packaging is offered in bags or drums suited to bulk industrial procurement. This material ensures consistent performance across a wide range of demanding chemical processing requirements.
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Physical Properties
| Melting Point | 125 °C |
| Density | 1.323 |
| Appearance | Lead stearate is an organic lead compound. It is a white powder with a slight fatty odor. |
| Color | white |
| Form | powder |
| Water Solubility | Soluble in hot alcohol. Slightly soluble in warm water. |
Safety & Handling
Danger GHS07 GHS08 GHS09 Hazard Statements H302 Harmful if swallowed H332 Harmful if inhaled H341 Suspected of causing genetic defects H350 May cause cancer H351 Suspected of causing cancer H360 May damage fertility or the unborn child H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P301+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately.
Other Names
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Chemical Properties
- CAS Number
- 1072-35-1
- EC Number
- 214-005-2
- Mol. Weight
- 774
- Category
- Oils, Fats & Waxes