Pigment Blue 61
Synonyms
C.I. Pigment Blue 61;
C.I. 42765;
((4-((4-(Anilino)phenyl)(4-(phenylimino)-2,5-cyclohexadien-1-ylidene)methyl)phenyl)amino)benzenesulphonic acid;
Category
Zwitterionic Surfactant
> Sulfonate Type
>> Aromatic Amine Sulfonate
Chemical Numbering System
CAS: 1324-76-1
EINECS: 215-385-2
Molecular Formula & Molecular Weight
Molecular Formula: C37H29N3O3S
Molecular Weight: 595.71
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, dispersing, 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);