Sodium Stearate
time:2012-10-01 16:06:27,count:0

Sodium Stearate
Alias
Stearic acid sodium salt
Octadecanoic acid sodium salt
Sodium octadecanoate
Category
Anionic surfactants-Carboxylate
CAS No.
822-16-2
Molecular Formula & Molecular Weight
Molecular Formula: C18H35NaO2
Molecular Weight: 306.46
Structural Formula
Properties
Appearance: white solid.
Solubility: slightly soluble in water. slightly soluble in ethanol. soluble in hot water, after cooling substantially form transparent gel.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Ecology: May be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent lubricating, cleansing, emulsifying, dispersing abilities. intolerance to hard water. major component of soap (sodium soap).
Notes: be careful with using in children care products.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
98.0
 
free acid, % , ≤
0.5
 
moisture, ≤
1.5
 
*: should be marked on molecular weight.
Major Uses
Cleansing agent in household cleaning products. eg: soap.
Emulsifying agent, cleansing agent in personal care products.
Heat stabilizer, lubricant in polyethylene processing.
Lubricant in metal processing.
Use as medical accessories. eg: pharmaceutical, suppositories.
Use as dispersing agent, emulsifying agent.
Manufacturers
 
Update: 20131102(1);

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