Acid Blue 113

Acid Blue 113 Appearance is green light black powder. It is soluble in water and purple. It is soluble in ethanol and purple blue. It is also soluble in cellosolve. It is slightly soluble in acetone and insoluble in other organic solvents. It is dark green blue in sulfuric acid. After dark green light to grayish purple; in concentrated nitric acid, it is orange-brown solution. The aqueous solution is concentrated with hydrochloric acid, which is purple-red; the concentrated sodium hydroxide solution is reddish.

TRADE NAME:Acid Blue 5R,Acid Navy Blue 5R,Acid Blue No 6,Acid Blue R,Weak Acid Navy Blue 5R,Acid Navy Blue P-2RB,Acid Navy Blue 5R

Technical Specifications

• ‍CAS NO: 3351-05-1
• CI.NO: 26360
• Molecular Formula:C32H21N5Na2O6S2
• Molecular Weight:681.65
• Shade:Red light navy blue‍

Application Features

Colour Fastness Test

Application:

Used for wool, polyamide fiber and fabric dyeing of silk, also can with the direct dyes with bath dyed wool/stick blended fabric, can also be used in leather, paper and biological shading.

Acid Blue 113 Use condition:

• ‍1. It is used for dyeing and printing wool, silk and nylon. It can also be used for coloring leather, paper and biological materials.
• 2. Wool dyeing: It should be carried out in a weak acid bath and a neutral bath. The pH value of the dyeing solution is adjusted to 5~7. When dyeing with acetic acid bath, the effect of retarding dyeing with Yuanming powder is not obvious. The highest dyeing temperature is 85~95°C, and the dyeing temperature should not exceed 95°C. If the temperature is too high or the time is too long, the color of the dyed product is easy to turn dark and dark. The weak acid dark blue 5R has high reduction sensitivity. Adding a suitable weak oxidizing agent to the dyeing solution can prevent the influence of the reducing substance generated during the dyeing process on the color light.
• 3. Silk dyeing: in weak acid or neutral bath, dyeing in neutral bath should be added to Yuanming powder for dyeing. It is often used for dyeing cyan. It is dyed on the dyeing machine, which is easy to produce shallow head and shallow side disease.疵. The dyeing fastness on silk is worse than wool dyeing.
• 4. Nylon dyeing: carried out in a weakly acidic or neutral bath.
• 5. Blending of blended fabrics: When the wool is dyed in the same bath with various fibers, the apparent color depth of the nylon is close to that of the wool, the silk is lighter, the polyester and acrylic fibers are stained, and the cellulose fibers are stained. It can also be dyed with the direct dye. The wool-blend blend fabric, after dyeing, is fixed with a fixing agent to improve the wet processing fastness.
• 6. When dyeing, the color of copper ions is slightly darker, and the iron ions are slightly lighter. The discharge is poor.‍

FAQ

What fibers can Acid Blue 113 dye?

Primarily protein fibers (wool, silk) and polyamide (nylon). It has low affinity for cellulose without special mordants.

How is it applied?

Dissolve in water and apply in an acid dyebath (acetic or citric acid), heat to the recommended dyeing temperature and follow standard exhaustion/time profiles for acid dyes.

How can I improve fastness?

Use appropriate mordants or after-treatments, optimize fixation temperature/time, and add commercial leveling/fastness auxiliaries—results vary by substrate.

Any safety or handling notes?

Avoid inhalation and skin contact; use gloves and eye protection. Prevent release to drains; follow local disposal regulations and the supplier’s SDS.