Disodium 4-(acetylamino)-5-hydroxynaphthalene-2,7-disulphonate
Time: 2015-01-21 21:08:38
Disodium 4-(acetylamino)-5-hydroxynaphthalene-2,7-disulphonate
Synonyms
2,7-Naphthalenedisulfonic acid, 4-(acetylamino)-5-hydroxy-, sodium salt (1:2);
Disodium 4-(acetylamino)-5-hydroxynaphthalene-2,7-disulfonate;
Category
Anionic Surfactant
>> Sulfonate
>> Amido Sulfonate
>> Amido Naphthalenesulfonate
>> Linear Alkyl Fatty Amido Naphthalenesulfonate
Chemical Numbering System
CASRN16698-16-1
EINECS240-746-6
Molecular Formula & Molecular Weight
Molecular Formula: C12H9NNa2O8S2; C12H11N1O8S2.2Na
Molecular Weight: 405.31
Structure
Properties
Appearance    (1), solid.
Solubility    soluble in water.
Stability    stable. Under hot strong acid or hot strong alkali, easily hydrolyze.
Risk    Solid form: flammable material; irritation, 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:  
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent emulsifying, dispersing, wetting, permeating abilities.
Synthesis
 
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Solid
Actives, %, ≥
90.0
pH (25°C, 1%)
7.0 - 8.5
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
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 emulsion stabilizer, dispersing agent.
Use as wetting agent.
Use as hydrotrope.
Manufacturers
 
Update: 20171018(1);