Technical stearic acid
Applications
Applications of stearic acid are varied and cover many industrial and domestic sectors. It serves as an activator in the vulcanization accelerators, processes dispersant in rubber compounds fillers, softeners (plasticizers). Direct injection of stearic acid in the rubber helps to improve the distribution of the components and the degree of adaptability of the rubber compound.
Widespread use of stearic acid is found in pharmaceuticals and cosmetics, where it acts as a component responsible for the formation of structure and emulsifier for creams. Stearic acid is also indispensable in the chemical laboratory. For polishing pastes stearic acid — a component unchanged. Salts of stearic acid are used in bitumen for road construction, and the extraction of certain ores.
Safety requirements
Stearic acid fire and explosion proof. The impact on the body is a third class risk substance.
Packaging
Stearic acid is packed in
Guaranteed shelf life
1 year from date of manufacture.
| Item | Norm GOST | Actually |
| Appearance | Flakes, powder | Acc. |
| Color | White, with a slightly yellowish tinge | Acc. |
| Mechanical impurities | No | Acc. |
| Transparency at 70 °C | Transparent | Acc. |
| Iodine number g/I2 / 100 g, not more | 32 | 6.4 |
| Mass fraction of unsaponifiables, %, not more | 0.7 | 0.65 |
| Temperature point, °C, min | 53.0 | 65.6 |
| Acid, mg KOH / g | 192–210 | 193.1 |
| Saponification, mg KOH / g | 194–213 | 195.8 |
| Moisture content, %, not more | 0.2 | 0.18 |
| Ash content, %, not more | 0.02 | 0.18 |