Benzene, 1,1'-oxybis-, tetrapropylene derivs., sulfonated, sodium salts
Time: 2012-09-29 16:47:30
Benzene, 1,1'-oxybis-, tetrapropylene derivs., sulfonated, sodium salts
Synonyms
1-Propene tetramer-oxybisbenzene reaction products, sulfonated, sodium salt;
Diphenyl ether tetrapropylene derivs. sulfonated sodium salts;
Sodium dodecyl diphenyl ether disulfonate;
Category
Anionic Surfactant
>> Sulfonate
>> Aryl Sulfonate
>> Phenyl Ether Sulfonate
>> Branched Alkyl Phenyl Ether Sulfonate
Chemical Numbering System
CASRN119345-04-9
EINECS601-601-6
Molecular Formula & Molecular Weight
Molecular Formula: C24H32Na2O7S2; C24H34O7S2.Na2
Molecular Weight: 542.62
Structure
Schematic formula:
Properties
Appearance    (1), yellow transparent liquid; (2), solid.
Solubility    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: irritation, moderate irritation to skin, eye.
GHS (Rev.6) label:
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    to a certain extent, biodegradable.
Characteristics    excellent emulsifying, dispersing, cleansing, wetting abilities. Certain tolerance to inorganic electrolyte, oxidants. In the emulsion polymerization, can replace alkylphenol ethoxylates and sodium dodecyl sulfate.
Synthesis
Currently, sulfonation reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfonates.
Generally, tetrapropylene diphenyl ether and fuming sulfuric acid or sulfur trioxide react through reactor, then sodium hydroxide or sodium carbonate neutralizes, finally obtain product.
Refer to: US patent 8,921,588 Process for preparing sulfates and/or sulfonates in a micro-reaction system.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Liquid
Actives, %, ≥
40.0 - 70.0
pH (25°C, 1%)
7.0 - 10.5
Test Methods
(1), Actives
 
(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
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.
Major Uses
1. Typical applications
Use as emulsifying agent, dispersing agent.
2. Emulsion polymerization
Emulsifying agent, particle size controlling agent in emulsion polymerization. Such as water-based pressure sensitive adhesives, styrene-acrylic emulsion, waterproof emulsion, protective film glue, water-based peritoneal glue, textile emulsion.
Can promote the particle size distribution is narrow and uniform.
3. Textile, printing and dyeing
Leveling agent in textile, printing and dyeing.
Manufacturers
 
Update: 20131025(1); 20170410(2);