Rhodamine B acetate
Synonyms
C.I. 45170, acetate;
9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium acetate;
Xanthylium, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)-, acetate (1:1);
Category
Zwitterionic Surfactant
> Pyranium-group Carboxylate Salt
>> Dibenzopyranium-group Carboxylate Salt
Chemical Numbering System
CAS: 64381-99-3
EINECS: 264-859-5
Molecular Formula & Molecular Weight
Molecular Formula: C30H34N2O5; C28H31N2O3.C2H3O2
Molecular Weight: 502.60
Structure
Properties
Appearance (1), solid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2, nitrogen oxides and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent masking, dyeing, dispersing, antistatic abilities. Xanthene dyes.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
85.0 |
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 dye.
Manufacturers