C.I. Acid Red 18
time:2015-09-09 17:20:13,count:0

C.I. Acid Red 18
Alias
Acid Red 18
New coccine
CI 16255
1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
Category
Anionic surfactants-Sulfonate
CAS No.
2611-82-7
Molecular Formula & Molecular Weight
Molecular Formula: C20H11N2Na3S3O10
Molecular Weight: 604.47
Structural Formula
Properties
Appearance: solid.
Solubility: soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: mouse intraperitoneal LD50: 1600mg/Kg;
mouse oral LDLo: 8000mg/Kg;
rat intraperitoneal LD50: 600mg/Kg;
rat intravenous LD50: 1000mg/Kg;
rat oral LD50: > 8000mg/Kg.
Ecology: May be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent masking, coloring abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
Actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Use as dye.
Hair dyeing agent, dye in personal care products.
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/: 2611-82-7

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