Product description:
Acid scarlet 3R (C.I. acid red 18) appearance is red powder. It is red in water, slightly soluble in alcohol and fibrinolysin, and insoluble in other organic solvents.
Product parameter:
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Synonyms
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7-Hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-1,3-naphthalenedisulfonic acid, trisodium salt; 1,3-Naphthalenedisulfonic acid,
7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt; 1-(4-Sulpho-1-naphthylazo)-2-naphthol-6,8-disulphonic acid, trisodium salt; Acid Brilliant Scarlet 3R; Acid Ponceau 4R; Acid Red 18; Acid Scarlet 4R; Acidal Bright Ponceau 3R; Brilliant Ponceau 3R; Brilliant Ponceau 4R; Brilliant Scarlet 3R; Brilliant Scarlet 4R; Bucacid Brilliant Scarlet 3R; C.I. 16255; C.I. Acid Red 18, trisodium salt; C.I. Acid Red 28; C.I. Food Red 7; Calcocid Brilliant Scarlet 3RN; Cochineal Red A; Colacid Ponceau 4R; E 124; Food Red No. 102; New Coccine Red No. 102; Red Dye No. 102; |
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CAS No.
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2611-82-7
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EINECS No.
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220-036-2
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Colour Index
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16255
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Molecular formula
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C20-H14-N2-O10-S3.3Na
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Molecular Weight
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604.479
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MDL
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MFCD00004084
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Appearance
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Red powder
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Melting point
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>300℃
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Density
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1.772[at20℃]
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Vapor pressure
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0Paat25℃
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Solubility
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Very soluble in water and alcohol
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Water solubility
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305.21g/Lat20℃
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Application
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Mainly used for dyeing wool, silk, nylon and its blended fabrics, also used for dyeing leather,paper,plastics,wood,medicine and
cosmetics, and also for making ink. |
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Strength
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100%
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Chemical properties
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It is red in water, slightly soluble in alcohol and fibrinolysin, and insoluble in other organic solvents.
When concentrated sulfuric acid, acid red 18 is purple, it will be diluted to red orange. The concentrated hydrochloric acid in its aqueous solution is red and the sodium hydroxide is brown. |
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Stability
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Hygroscopic
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Moisture
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5.3%
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Insoluble in water
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0.2%
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Comments
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May cause irritation; May be harmful if swallowed
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LogP
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-2.267 at 20℃
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HS Code
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32041200
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BRN
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4122340
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Sample
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Free sample is available
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Packaging
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25kg/drum
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Storage condition
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Inert atmosphere,Room Temperature
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Product Exhibtion:
Color card:
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