Solvent Yellow 56(CAS#2481-94-9)
| Risk Codes | R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R36/37/38 – Irritating to eyes, respiratory system and skin. R68 – Possible risk of irreversible effects |
| Safety Description | S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 – Wear suitable protective clothing, gloves and eye/face protection. S60 – This material and its container must be disposed of as hazardous waste. S36/37 – Wear suitable protective clothing and gloves. |
Solvent Yellow 56(CAS#2481-94-9)
Physicochemical properties
Appearance: Typically yellow to orange powder or crystalline solid.
Solubility: insoluble in water, soluble in organic solvents, such as ethanol, toluene, xylene, etc., with good solvent solubility, can form a uniform solution in a variety of organic solvents, showing a bright yellow color.
Melting Point: Generally around 130 – 140°C, but the specific melting point may vary depending on factors such as sample purity.
Stability: It is stable at room temperature and pressure, but reactions such as decomposition or discoloration may occur under specific conditions such as high temperature and strong oxidant.
chemical structure
The chemical structure of Solvent Yellow 56 contains an azo group (-N=N-), which is its chromophore that gives the compound its yellow color character. Aromatic rings and other substituents in the molecular structure affect its solubility, stability and other physicochemical properties.
Fields of application
Plastic industry: widely used in the coloring of plastics, such as polystyrene, polyvinyl chloride, polypropylene and other plastics, can make them appear bright yellow, improve the appearance quality and commercial value of plastic products.
Ink industry: It is an important colorant in ink, used for the deployment of printing ink, which can provide bright yellow color for ink, so that the printed matter has good color expression and visual effect, and is often used in packaging printing, book printing and other fields.
Coating industry: It can be used as a pigment for coatings, giving yellow hue to coatings, and is used in the production of various coatings, such as automotive coatings, furniture coatings, architectural coatings, etc., which can not only play a decorative role, but also improve the lightfastness and weather resistance of coatings to a certain extent.
Other fields: It can also be used for the dyeing of rubber, leather, textiles and other materials, as well as for the coloring of candles, greases, crayons and other products to meet the needs of different industries for yellow tones.
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