Abstract
This article provides an in-depth overview of CAS 980-26-7 Pigment Red 122, a widely used colorant in various industries. It delves into the chemical properties, applications, safety considerations, regulatory aspects, and environmental impact of this pigment. By understanding the nuances of Pigment Red 122, readers can make informed decisions regarding its use in their respective fields.
Introduction to CAS 980-26-7 Pigment Red 122
CAS 980-26-7 Pigment Red 122, also known as Pigment Red 122, is a synthetic organic pigment that is extensively used in the production of paints, inks, and plastics. It is characterized by its vibrant red color and excellent colorfastness, making it a preferred choice in numerous industries. This article aims to provide a comprehensive understanding of Pigment Red 122, covering its chemical properties, applications, safety, regulations, and environmental considerations.
Chemical Properties of Pigment Red 122
Pigment Red 122 is a diazo dye, which is a type of organic compound that contains a diazo group (-N=N-) in its molecular structure. This group is responsible for the pigment’s intense red color. The chemical formula of Pigment Red 122 is C34H20N2, and it has a molecular weight of 504.56 g/mol. The pigment is typically produced through a diazo coupling reaction, where diazonium salts are coupled with an aromatic amine compound.
The chemical properties of Pigment Red 122 include its solubility in various solvents, such as toluene, xylene, and acetone. It is also known for its excellent lightfastness and weatherfastness, which make it suitable for outdoor applications. Additionally, Pigment Red 122 has good heat stability, which is crucial for its use in high-temperature environments.
Applications of Pigment Red 122
Pigment Red 122 finds extensive use in various industries due to its vibrant red color and desirable properties. Some of the primary applications include:
1. **Paints and Coatings**: Pigment Red 122 is widely used in the production of industrial paints, architectural coatings, and automotive finishes. Its excellent colorfastness and weather resistance make it ideal for outdoor applications.
2. **Inks**: The pigment is also used in the production of inks for printing on paper, textiles, and plastics. Its high color intensity and stability ensure sharp and vibrant prints.
3. **Plastics**: Pigment Red 122 is used to color various types of plastics, including polyethylene, polypropylene, and polystyrene. It enhances the aesthetic appeal of the products and provides UV protection.
Safety Considerations for Pigment Red 122
While Pigment Red 122 is a widely used pigment, it is important to consider its safety profile. Some of the key safety aspects include:
1. **Hazard Identification**: Pigment Red 122 is classified as a hazardous substance due to its potential to cause skin irritation and allergic reactions. It is also considered a potential carcinogen.
2. **Handling and Storage**: Proper handling and storage procedures are essential to minimize the risk of exposure. The pigment should be handled with gloves and protective equipment, and stored in a cool, dry place away from direct sunlight.
3. **Exposure Limits**: Occupational exposure limits have been established to protect workers from the health risks associated with Pigment Red 122. These limits vary depending on the country and the specific exposure route.
Regulatory Aspects of Pigment Red 122
The use of Pigment Red 122 is subject to various regulations and standards, which vary by country and region. Some of the key regulatory aspects include:
1. **EU REACH**: The European Union’s Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) regulation requires the registration of Pigment Red 122 and its use in products.
2. **FDA Approval**: In the United States, Pigment Red 122 is approved by the Food and Drug Administration (FDA) for use in certain food, drug, and cosmetic products.
3. **Occupational Safety and Health Administration (OSHA)**: OSHA regulations in the U.S. outline the permissible exposure limits and safety measures for workers handling Pigment Red 122.
Environmental Impact of Pigment Red 122
The environmental impact of Pigment Red 122 is a significant concern due to its potential to leach into soil and water systems. Some of the environmental aspects include:
1. **Disposal**: Proper disposal methods are crucial to prevent the pigment from entering the environment. Pigment Red 122 should be disposed of in accordance with local regulations.
2. **Leaching**: The pigment can leach into soil and water, potentially affecting ecosystems. Therefore, it is important to use Pigment Red 122 responsibly and in controlled environments.
3. **Biodegradability**: Pigment Red 122 is not biodegradable, which means it can persist in the environment for an extended period. This raises concerns about its long-term impact on ecosystems.
Conclusion
CAS 980-26-7 Pigment Red 122 is a versatile and widely used colorant with numerous applications. This article has provided a comprehensive overview of its chemical properties, applications, safety considerations, regulatory aspects, and environmental impact. By understanding these factors, stakeholders can make informed decisions regarding the use of Pigment Red 122 in their respective industries.
Keywords: CAS 980-26-7, Pigment Red 122, colorant, chemical properties, applications, safety, regulations, environmental impact
