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Acid Red 18

Basic information Safety Supplier Related

Acid Red 18 Basic information

Product Name:
Acid Red 18
Synonyms:
  • SCARLET 3R
  • SCARLET 3R, WATER SOLUBLE
  • NEW COCCINE
  • PONCEAU 4R
  • PONCEAU 4RC
  • trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
  • BRILLIANT PONCEAUBRILLIANT PONCEAUBRILLIANT PONCEAU
  • Food Red 7 (C.I.16255)
CAS:
2611-82-7
MF:
C20H15N2NaO10S3
MW:
562.51
EINECS:
220-036-2
Product Categories:
  • Organics
  • Analytical Chemistry
  • Food Colors by Food Sanitation Law in Japan
  • pigment
Mol File:
2611-82-7.mol
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Acid Red 18 Chemical Properties

storage temp. 
Inert atmosphere,Room Temperature
form 
Powder
Colour Index 
16255
color 
Bordeaux to brown
BRN 
4122340
EPA Substance Registry System
C.I. Acid Red 18, trisodium salt (2611-82-7)
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Safety Information

Safety Statements 
22-24/25
WGK Germany 
2
RTECS 
QJ6530000
HS Code 
32041200
Hazardous Substances Data
2611-82-7(Hazardous Substances Data)
Toxicity
LD50 oral in rat: > 8gm/kg

MSDS

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Acid Red 18 Usage And Synthesis

Chemical Properties

Deep red powder

Uses

Food Red No. 102 is an artificial coloring food additive. Dye.

Uses

Food Red No. 102 is an artificial coloring food additive. Dye. Dyes and metabolites, Environmental Testing

Preparation

4-Aminonaphthalene-1-sulfonic acid diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.

Safety Profile

Moderately toxic by intraperitoneal route. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx and SOx.

Properties and Applications

red. Red powder. Soluble in water red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. Strong sulfuric acid in purple, will the red orange is diluted; Nitric acid solution in yellow. Its water solution and strong hydrochloric acid red, add sodium hydroxide is brown. Mainly used for wool, silk, polyamide fiber and its blended fabric dyeing, also can be used for leather, paper, plastic, wood, medicine and cosmetics of dyeing, still can make the ink.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4 2 3-4 2 1-2 3
AATCC 4 2 2 1 1 4

Purification Methods

Dissolve the dye in the minimum quantity of boiling water, filter and enough EtOH is added to precipitate ca 80% of the dye. This process is repeated until a solution of the dye in aqueous 20% pyridine has a constant extinction coefficient. [Beilstein 16 I 306.]

Acid Red 18Supplier

Lanxi Sanyi Chemical Co. Ltd Gold
Tel
Email
275003433@qq.com
J & K SCIENTIFIC LTD.
Tel
010-82848833- ;010-82848833-
Email
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
21-61259100-
Email
sh@meryer.com
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801
Email
3bsc@sina.com
future industrial shanghai co., ltd
Tel
400-0066-400;021-60496031
Email
sales@jonln.com;sales@jonln.com