Sodium Cyclopentyl Sulfate
Time: 2012-09-27 17:17:14
Sodium Cyclopentyl Sulfate
Cyclopentyl sulfate sodium salt;
Anionic Surfactant
>> Sulfate
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Chemical Numbering System
Molecular Formula & Molecular Weight
Molecular Formula: C5H9NaO4S; C5H10O4S.Na (SciFinder Hill Rules)
Molecular Weight: 188.18
Appearance    (1), solid; (2), liquid.
Solubility    soluble in water.
Stability    stable in alkali, weak acid and hard water; unstable in strong acid, hydrolyzed, reduced to alcohol.
Risk    Solid form: flammable material; irritation, moderate irritation to skin, eye, respiratory. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.6) label:  
Liquid form: irritation, moderate irritation to skin, eye.
GHS (Rev.6) label:
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, emulsifying, foaming, wetting, dispersing, solubilizing, antimicrobial, antibacterial abilities. Resistant to hard water.
1. Adipic acid method
(1), In the presence of barium hydroxide, dry distillation, convert adipic acid into cyclopentanone;
(2), By hydrogenation, obtain cyclopentanol;
(3), Sodium cyclopentyl sulfate is obtained by esterification of cyclopentanol and sulfur trioxide, neutralization with alkali (such as: sodium hydroxide).
Equation is as follows:
Quality Standards & Test Methods
1. Physical and chemical indexes
Physical and chemical indexes
Actives, %, ≥
pH (25°C, 5% solution)
6.5 - 9.5
Test Methods
(1), Actives
GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
(2), pH
GB/T 6368 Surface active agents - Determination of pH of aqueous solution - Potentiometric method
ISO 4316 Surface active agents -- Determination of pH of aqueous solutions -- Potentiometric method
2. Hazardous substances indexes
Hazardous substances indexes
Heavy metals (as Pb), mg/Kg, ≤
As, mg/Kg, ≤
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents - Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents - Determination of total arsenic
3. Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1. Typical applications
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
2. Industrial cleaning agents
Main ingredient or auxiliary ingredient for cleansing agent, foaming agent in car cleaning products, metal cleaning products and other industrial cleaning products.
Update: 20131018(1); 20160828(2);