Calcium bis(2-ethylhexanoate)
Synonyms
Hexanoic acid, 2-ethyl-, calcium (2+) salt;
Hexanoic acid, 2-ethyl-, calcium (2+) salt (2:1);
Calcium 2-ethylhexanoate;
2-Ethylcaproic acid, calcium salt;
Category
Anionic Surfactant
> Carboxylate
>> Chain Carboxylate
>>> Alkyl Carboxylate
>>>> Branched Alkyl Carboxylate
Chemical Numbering System
CAS: 136-51-6
EINECS: 205-249-0
Molecular Formula & Molecular Weight
Molecular Formula: C16H30CaO4; C8H16O2.1/2Ca
Molecular Weight: 326.49
Structure
Properties
Appearance (1), white solid; (2), pale yellow or yellow liquid.
Solubility insoluble in water. soluble in ethyl ether, benzene.
Stability stable.
Risk Solid (or liquid) form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent emulsifying, dispersing, lubricating, antibacterial, preservative, solubilizing abilities.
Synthesis
Sodium 2-ethylhexanoate reacts with calcium chloride, then obtain.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
|
Solid |
Liquid |
|
|
Actives, %, ≥ |
95.0 |
50.0 - 80.0 |
|
Ca, %, ≥ |
|
2.0 - 12.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
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), Ca
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid (or Liquid) |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
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 emulsifying agent, dispersing agent.
Use as lubricant.
2, Coatings
Auxiliary drier, drier, stabilizer for lead isooctanoate in paint.
Alternative to calcium naphthenate.
Usually, used in combination with cobalt isooctanoate, can prevent wrinkling.
Used in combination with cobalt isooctanoate and potassium isooctanoate, can provide better whitening effect.
Can improve varnish gloss.
3, Lubricating oil/grease
Detergent, corrosion inhibitor in lubricating oil, lubricating grease.
Manufacturers
Update: 20131102(1); 20180316(2);