Sodium shale oil sulfonate
Time: 2013-05-31 02:13:38
Sodium shale oil sulfonate
Synonyms
Ichthyolic acid, sodium salt;
Sodium ichthylosulfonate;
Category
Anionic Surfactant
>> Sulfonate
>> Aryl Sulfonate
>> Natural Substance Sulfonate
>> Natural Substance (Petroleum Source) Sulfonate
Chemical Numbering System
CASRN1340-06-3
EINECS215-671-7
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
 
Properties
Appearance    (1), liquid; (2), solid.
Solubility    slightly soluble in water to soluble in water.
Stability    stable.
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: flammable material; irritation, moderate irritation to skin, eye. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.6) label:  
Animal Toxicity
Table 1 Animal toxicity values
rat oral LD
> 10000mg/kg[1]
rat skin LD
> 21500mg/kg[1]
reproductive effect[1].
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent cleansing, foaming, emulsifying, dispersing, antimicrobial, anti-inflammatory, wetting, antirust, anticorrosive, lubricating, solubilizing abilities.
Synthesis
Currently, sulfonation reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfonates.
Generally, shale oil and sulfur trioxide react through reactor, then sodium hydroxide neutralizes, finally obtain product.
US patent 8,921,588 (Process for preparing sulfates and/or sulfonates in a micro-reaction system) presents a synthetic process.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Liquid
Actives, %, ≥
30.0
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. Hazardous substances indexes
Item
Hazardous substances indexes
Liquid
Solid
Heavy metals (as Pb), mg/Kg, ≤
20
20
As, mg/Kg, ≤
3
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.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1. Typical applications
Use as cleansing agent.
Use as emulsifying agent, dispersing agent.
2. Personal care products
Anti-dandruff agent, antimicrobial agent in personal care products.
Manufacturers
 
References
[1]: ChemIDplus. 1340-06-3, Ichthyolic acid, sodium salt
Update: 20131025(1); 20170405(2);