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Sodium Stearate Pharmaceutical Grade

CAS：822-16-2
Formula：

C18H35NaO2

DESCRIPTION

Product name:  Sodium Stearate

Other names:　Stearic acid sodium salt

Cas No.:  822-16-2

Chemical formula: C18H35NaO2

Characters: Sodium stearate is the sodium salt of stearic acid.Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide. It is white solid powder with slight tallow-like odor. It is soluble in water, slightly soluble in ethanediol.

 

SPECIFICATION

Items	Specification
Standard	USP	BP	FOOD GRADE
Assay Na. %	/	7.4-8.5	/
Acid value	196-211	/	196-211
Iodine, %	≤4.0	/	≤4.0
Choride, %	/	≤0.2	/
Sulfate, %	/	≤0.3	/
Acidity, %	0.28-1.2	/	0.28-1.2
Loss on drying, %	≤5.0	≤5.0	≤4.0
Alcohol-insoluble substance	Meet requirements	/	/
Organic volatile impurities	Meet requirements	/	/
Heavy metals, ppm	/	/	≤15
Arsenic, ppm	/	/	≤3
Stearic acid, %	≥40.0	≥40.0	/
Stearic acid and palmitic acid, %	≥90.0	≥90.0	/

APPLICATION

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.

 

STORAGE

Storage: Store in closed package and avoid from moisture and strong sun light.

 

PACKAGE

Sodium Stearate package can be customized according to customers' requirements. If no special instruction, it is packed in 20kg PE bag.

 

SHELF LIFE

3 years from the date of manufacturing. 

 

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