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Pigment Yellow 181 CAS 74441-05-7

Chemical Property:

Molecular Formula C25H21N7O5
Molar Mass 499.48
Density 1.50±0.1 g/cm3(Predicted)
Boling Point 628.3±55.0 °C(Predicted)
Flash Point 333.8°C
Water Solubility 106.1μg/L at 23℃
Solubility 52.7μg/L in organic solvents at 20 ℃
Vapor Presure 1.07E-15mmHg at 25°C
pKa 8.15±0.59(Predicted)
Refractive Index 1.728
Physical and Chemical Properties hue or color: yellow
density/(g/cm3):1.48
average particle size/μm:560
specific surface area/(m2/g):27(H3R)
diffraction curve:
reflex curve:
Use This pigment is another benzimidazolone red and yellow variety with structure put on the market in recent years, with a hue angle of 66.5 degrees (1/3S.D.,HDPE), used for Polyolefin coloring, no size deformation, with excellent thermal stability and light fastness, heat resistance up to 300 ℃, light fastness to grade 7-8. Widely used in plastic coloring, especially for high temperature processing of resin, such as PS,ABS,PE, etc.; Also used for viscose fiber and paint coloring.

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Introduction

Yellow 181 is an organic pigment with the chemical name of phenoxymethyloxyphenylazolizoyl barium.

 

Yellow 181 pigment has a brilliant yellow color and has excellent light stability and durability. It is highly resistant to solvents and light, and is not prone to fading and fading. Yellow 181 also has good heat and chemical resistance.

 

Yellow 181 is widely used as a colorant in industries such as inks, plastics, coatings, and rubber. Its vivid yellow color adds to the attractiveness and aesthetics of the product. Yellow 181 is also commonly used in textile dyeing, painting art and printing.

 

The preparation of Huang 181 is usually made by synthetic chemical methods. Specifically, phenoxymethyloxyphenyl triazole is first synthesized, and then reacted with barium chloride to form yellow 181 pigment.

Avoid inhaling yellow 181 dust or solution, and avoid skin and eye contact. When storing and handling Yellow 181, local regulations should be observed, and it should be kept in a dry, well-ventilated place. If you accidentally swallow or come into contact with Huang 181, you should seek medical attention immediately.


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