C.I. Acid Yellow 23 barium salt (2:3)
Synonyms
Barium 4,5-dihydro-5-oxo-1-(4-sulphonatophenyl)-4-((4-sulphonatophenyl)azo)-1H-pyrazole-3-carboxylate (3:2);
Category
Zwitterionic Surfactant
> Sulfonate Type
>> Azo Dye
Chemical Numbering System
CAS: 84681-80-1
EINECS: 283-540-1
Molecular Formula & Molecular Weight
Molecular Formula: C32H18Ba3N8O18S4; C16H12N4O9S2.3/2Ba
Molecular Weight: 1342.77
Structure
Properties
Appearance (1), solid.
Solubility insoluble 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, antistatic 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 pigment.
Manufacturers
Update: 20190714(1);