C.I. Direct Red 83
Time: 2015-08-17 20:32:24
C.I. Direct Red 83
Synonyms
Cuprate(4-), (mu-((7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-hydroxy-5-sulfophenyl)azo)-2-naphthalenesulfonato))(8-)))di-, sodium (1:4);
Category
Anionic Surfactant
>> Sulfonate
>> Azo Sulfonate
>> Azo Dye
Chemical Numbering System
CASRN15418-16-3
EINECS239-429-5
Molecular Formula & Molecular Weight
Molecular Formula: C33H16Cu2N6Na4O17S4
Molecular Weight: 1115.82
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 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.6) label:  
Ecology    may be hazardous to environment. Water body should be given special attention.
Biodegradability    biodegradable.
Characteristics    excellent masking, dispersing abilities.
Synthesis
 
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
Solid
Actives, %, ≥
85.0
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.
Major Uses
1. Typical Applications
Use as dye.
Manufacturers
 
Update: 20171208(1);