C.I. Acid Red 18
Time: 2015-09-09 17:20:13
C.I. Acid Red 18
Synonyms
Acid Red 18;
New coccine;
CI 16255;
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt;
Category
Anionic Surfactant
>> Sulfonate
>> Azo Sulfonate
>> Azo Dye
Chemical Numbering System
CASRN2611-82-7
EINECS220-036-2
Molecular Formula & Molecular Weight
Molecular Formula: C20H11N2Na3O10S3; C20H14N2O10S3.3Na
Molecular Weight: 604.47
Structure
Properties
Appearance    (1), solid.
Solubility    soluble in water.
Stability    stable.
Physical - chemical properties
Water solubility, g/L
80 (Not specified temperature)[1]
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:  
Animal Toxicity
Table 1 Animal toxicity values
mouse intraperitoneal LD50
1600mg/kg[2]
mouse oral LDLo
8000mg/kg[2]
rat intraperitoneal LD50
600mg/kg[2]
rat intravenous LD50
1000mg/kg[2]
rat oral LD50
> 8000mg/kg[2]
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.
(b), Used in cosmetics, should be test for harmful substances; or furtherly test for microorganisms.
Major Uses
1. Typical Applications
Use as dye.
2. Personal care products
Dye, hair dyeing agent in personal care products.
*  *  *  *  *  *
Further information:
(1), In accordance with EU regulations (EC) No 1223/2009, directive 88/667/EEC, be included in Annex IV/35.
In accordance with EU regulations (EC) No 344/2013, be included in Annex III/192, Can be used in non-oxidative hair dye products.
The Maximum concentration is 0.5%.
(2), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition):
Can be used in personal care products.
In raw materials, other material limitations are as follows:
The total contents of 4-aminonaphthalene-1-sulfonic acid, 3-hydroxynaphthalene-2,7-disulfonic acid, 6-hydroxynaphthalene-2-sulfonic acid, 7-hydroxynaphthalene-1,3-disulfonic acid and 7-hydroxy naphthalene-1,3,6- trisulfonic acid are not more than 0.5%.
The content of unsulfonated aromatic primary amine is not more than 0.01% (as aniline).
Manufacturers
 
References
[1]: HSDB. 2611-82-7, C.I. Acid Red 18
[2]: ChemIDplus. 2611-82-7, C.I. Acid Red 18
Update: 20171208(1);