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Acid Red 18

TRADE NAME:
Acid red 3R
Acid Scarlet 3R
Acid Scarlet 2R
Acid Scarlet BR
Acid Scarlet R
Acid Brilliant Red 4R
Apollo Acid Brilliant Scarlet 3R
Brilliant Scarlet 3R
Daiwa New Coccine
Dycroacid Scarlet 3R
Orcoacid Brilliant Scarlet 3R-L
Rifa Acid Brilliant Scarlet R
Vicoacid Scarlet 3R
Triacid Ponceau 4R

CAS NO: 2611-82-7

CI.NO: 16255

Molecular Formula: C20H11N2Na3O10S3
Molecular Weight: 604.48
Shade:Red
COLOR TEMPLATE

Acid Red 18 Physical and Chemical properties

Application Features 

Leveling(grade)

Displacement

Whitening

Solubility(g/L)

Metal ion effect(grade)

copper

iron

chromium

2~3

well

250(100℃)

3~4D

4Y

Colour Fastness Test

Test Methods

fiber

Alkali resistance

Carbonization

Chlorination discoloration

Oxygen bleaching

potting

Alkali fluff color change

Acid fluff color change

Seawater discoloration

soaping

Perspiration

Sun exposure

discolor

Staining

AATCC

wool

4

5

1

4~5

2

4

2

2

1

4

ISO

wool

4

4~5

4

1~2

4~5

2

2~3

3

2

3~4

2

4

Appearance is red powder. It is soluble in water and red. It is slightly soluble in ethanol and cellosolve, and insoluble in other organic solvents. It is purple when concentrated sulfuric acid, reddish orange after dilution; yellow solution in concentrated nitric acid. The concentrated hydrochloric acid is red, and the sodium hydroxide is brown.

Acid Red 18 Use condition:

1. Acid Red 18 is mainly used for dyeing wool, silk, nylon and its blended fabrics. It can also be used for dyeing leather, paper, wood, medicine and cosmetics, as well as ink.

2. Wool dyeing should be carried out in a strong acid or weak acid bath. The pH value of the dyeing solution is adjusted to 3~5. The addition of Yuanming powder is used to slow the dyeing effect. The highest dyeing temperature when using acetic acid as the dyeing agent is 95~100 °C. When the wool is dyed in the same bath as the various fibers, the nylon is colored, the silk is lightly colored, and the cellulose fibers are not stained.

3. Acid Red 18 (Acid red 3R) dyeing fastness is poor, color brightness is not as good as acid red G, leveling is also poor, so it is rarely applied on textiles, generally replaced by other acid red.

Acid Red 18 Application:

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.

Packing:

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye

Acid Red 18 Material Safety Data Sheet (MSDS)

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