The synthetic dye Solvent Yellow 14, sometimes referred to as Sudan III or CI 12055, is an element of the solvent dye class. It is frequently applied to many materials, mainly non-polar ones, to give them a yellow-orange tint. Bright colour, great solubility in organic solvents, and compatibility with hydrocarbon-based materials are those features that define this dye.

Chemical Structure and Properties

The molecular weight of Solvent Yellow 14 is 248.28 g/mol, and the chemical structure is C16H12N2O. An azo group (-N=N-) meets two aromatic rings to form the dye, it is an azo compound. Its bright color and stability are attributed to this structural quality. Yellow 14 is an oil-soluble solvent with little water solubility. 

Applications for Solvent Yellow 14 in Polymers and Plastics

In the plastics marketplace, Solvent Yellow 14 is extensively utilised to colour polyethene, polypropylene, polystyrene, and other polymers. It produces vivid and consistent colouration with its oil-soluble nature, which ensures uniform dispersion in the polymer matrix. In recognition of this characteristic, it is a preferred choice in manufacturing goods such as household goods, automobile components, and packaging materials.

Colors of Fuel and Lubricant

Solvent Yellow 14 is commonly utilized in the candle and wax business to create vivid orange or yellow hues. Without converting all of the products’ substance, its solubility in paraffin and other waxes guarantees consistent coloring. This use is typical of perfumed and ornamental candles.

Paints, Dyes, and Coatings

In manufacturing solvent-based paints, varnishes, and inks, the dye is a vital part. It is employed in surface finishing applications and industrial printing processes that call for vibrant, long-lasting coloured.

Environmental and safety concerns

Like the other azo dyes, The solvent Yellow 14 raised concerns of potential adverse impact on the environment and human health. It can break through and release aromatic amines, some of which are harmful or may cause cancer. Long-term exposure to the color, especially if it’s powdered, can cause respiratory issues and skin irritation.

In addition to its durability and resistance to biodegradation, the dye may accumulate in ecosystems and have an adverse effect on the environment. Its use in consumer goods, especially food and cosmetics, has been restricted as a result of regulatory bodies throughout various areas.

Alternatives and Futures

Researchers are working towards more environmentally friendly and secure substitutes for Solvent Yellow 14 in order to address these problems. The goal of dye chemistry developments is to create biodegradable, non-toxic dyes that retain the abilities that come from traditional solvent dyes.

To sum up, Solvent Yellow 14 is a flexible dye with a wide range of industrial uses. However, in light of the possible health and environmental hazards, it must be handled with care, rules must be followed, and sustainable alternatives must be chosen.