C.I. Fluorescent brightener 28, disodium salt
Synonyms
C.I. 40622;
Cellufluor;
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-(bis(2-hydroxyethyl)amino)-6-(phenylamino)-1,3,5-triazin-2-yl)amino)-, disodium salt;
Category
Zwitterionic Surfactant
> Sulfonate Type
>> Triazine Dye
Chemical Numbering System
CAS: 4193-55-9
EINECS: 224-073-5
Molecular Formula & Molecular Weight
Molecular Formula: C40H42N12Na2O10S2; C40H44N12O10S2.2Na
Molecular Weight: 960.95
Structure
Properties
Appearance (1), yellow powder.
Solubility soluble in water.
Stability stable.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
guinea pig oral LD50 |
250mg/kg[1] |
|
mouse oral LD50 |
> 10000mg/kg[1] |
|
mouse subcutaneous LD50 |
1000mg/kg[1] |
|
rabbit skin LD50 |
> 2000mg/kg[1] |
|
rat intraperitoneal LD50 |
350mg/kg[1] |
|
rat oral LD50 |
14530mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, antistatic, UV absorbing abilities.
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
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 fluorescent brightener. For example, be used in paper-making, textile.
Use as UV absorbing agent.
Use as dye.
Applied in biochemistry research.
Manufacturers
References
[1]: ChemIDplus. 4193-55-9, C.I. Fluorescent brightener 28, disodium salt
Update: 20190714(1);