Sodium Stearate | 822-16-2
Products Description
Sodium stearate is the sodium salt of stearic acid. This white solid is the most common soap. It is found in many types of solid deodorants, rubbers, latex paints, and inks. It is also a component of some food additives and food flavorings.Characteristic of soaps, sodium stearate has both hydrophilic and hydrophobic parts, the carboxylate and the long hydrocarbon chain, respectively. These two chemically different components induce the formation of micelles, which present the hydrophilic heads outwards and their hydrophobic (hydrocarbon) tails inwards, providing a lipophilic environment for hydrophobic compounds.The tail part dissolves the grease (or) dirt and forms the micelle. It is also used in the pharmaceutical industry as a surfactant to aid the solubility of hydrophobic compounds in the production of various mouth foams.
| Items | Standard |
| Appearance | Fine, white, light powder |
| Identification A | Meets the requirement |
| Identification B | The fatty acids Congealing Temperature≥54℃ |
| Acid value of fatty acids | 196~211 |
| Iodine value of fatty acids | ≤4.0 |
| Acidity | 0.28%~1.20% |
| Loss on drying | ≤5.0% |
| Alcohol-insoluble substances | Meets the requirement |
| Heavy metals | ≤10ppm |
| Stearic acid | ≥40.0% |
| Stearic acid & palmitic acid | ≥90.0% |
| TAMC | 1000CFU/g |
| TYMC | 100CFU/g |
| Escherichia coli | Absent |
Function & Application
Mainly used for making soap detergent. It is used as active agent and emulsifier of personal care products.Used to control foam during rinsing. (sodium stearate is the main ingredient in soap)
This product is widely used in food, medicine, cosmetics, plastics, metal processing, metal cutting, etc. it is also used in acrylate rubber Soap / sulfur curing system. Mainly used as emulsifier, dispersant, lubricant, surface treatment agent, corrosion inhibitor, etc.
1.detergent: used to control the foaming process. Sodium stearate is the main component of soap;
2.emulsifiers or dispersants: medium and medium for polymers;
3.corrosion inhibitors: polyethylene packaging film to protect the performance of;
4.cosmetics: shaving gel, transparent viscose, etc..
5.adhesive: used as natural rubber paste paper.
Specification
| Sodium Content | 7.5 ± 0.5% |
| Free acid | =< 1% |
| Moisture | =< 3% |
| Fineness | 95%MIN |
| Iodine value | =< 1 |
| Heavy Metal% | =< 0.001% |
