Disodium distyrylbiphenyl disulfonate
Synonyms
Benzenesulfonic acid, 2,2'-((1,1'-biphenyl)-4,4'-diyldi-2,1-ethenediyl)bis-, disodium salt;
Disodium 4,4'-bis(2-sulfostyryl)biphenyl;
FBA 351;
Tinopal CBS;
Tinopal CBS-X;
Stilbene 3;
Category
Anionic Surfactant
> Sulfonate
>> Aryl Sulfonate
>>> Distyrylbiphenyl Group Sulfonate
>>>> Distyrylbiphenyl Sulfonate
Chemical Numbering System
CASRN：27344-41-8
EINECS：248-421-0
Molecular Formula & Molecular Weight
Molecular Formula: C28H20Na2O6S2; C28H22O6S2.Na2
Molecular Weight: 562.56
Structure
Properties
Appearance (1), pale yellow-green solid; (2), liquid.
Solubility soluble in water.
Stability stable.
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.10) label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
5580mg/kg[1] |
|
rat skin LD50 |
> 1000mg/kg[1] |
|
mouse oral LD50 |
4920mg/kg[1] |
|
hamster oral LD50 |
6030mg/kg[1] |
|
rabbit skin LD50 |
2500mg/kg[1] |
Reproductive effect[1].
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent UV absorbing, dispersing, emulsifying abilities. Blue shade. Resistant to chlorine bleach, oxygen bleach. Resistant to acid, alkali.
Note (1), Avoid using in children products, such as makeup.
Synthesis
Refer to:
NIU Yu-lan, XUE Xiao-li, CHEN Zhi-min. Improvement of synthesis of fluorescent whitening agent CBS. China Surfactant Detergent & Cosmetics, 2003, 33(3): 197-199, etc.
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
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.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1, Typical applications
Use as fluorescent brightener.
Use as UV absorbing agent.
2, Household cleaning products
Use as fluorescent brightener widely. For example: washing powder.
3, Personal care products
Conditioning agent, thickening agent, UV absorbing agent in personal care products.
Manufacturers
References
[1]: ChemIDplus. 27344-41-8, Disodium 4,4'-bis(2-sulfostyryl)biphenyl
Update: 20131025(1); 20170424(2);