Dehydroabietic Acid
Synonyms
Abietic acid, dehydro-;
(-)-Dehydroabietic acid;
Category
Anionic Surfactant
> Carboxylate
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>>> Alicyclic Carboxylate
>>>> Tricyclic Diterpene Carboxylate and its Derivatives
Chemical Numbering System
CAS: 1740-19-8
EINECS: 217-102-8
Molecular Formula & Molecular Weight
Molecular Formula: C20H28O2
Molecular Weight: 300.44
Structure
Properties
Appearance (1), colorless crystal.
Solubility insoluble in water, soluble in ethanol, benzene.
Stability stable.
Risk Solid 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: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
1710mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, cleansing, emulsifying, dispersing, lubricating, solubilizing abilities.
Note (1), One of the main harmful substances in waste water of paper mill.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
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, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
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 cleansing agent.
Use as lubricant.
2, Adhesive
Adhesive used in preparation of water-soluble pressure-sensitive adhesive.
Tackifier in adhesives.
3, Coatings
Coloring carrier in printing ink.
4, Organic synthesis
Use as intermediate in organic synthesis.
Use as phase transfer catalyst.
Racemic compounds split.
Manufacturers
References
[1]: ChemIDplus. 1740-19-8, Dehydroabietic acid
Update: 20131114(1); 20181023(2);