Terephthalic acid CAS 100-21-0/PTA
Terephthalic acid is primarily used to produce polyethylene terephthalate (PET), a polymer widely used to make plastic bottles, containers, and synthetic fibers. PET is known for its strength, thermal stability, and moisture resistance. In addition, terephthalic acid is used to produce a variety of other materials, including:
1. Textiles: It is a key ingredient in the production of polyester fiber, which is used in clothing and household items.
2. Resin: Terephthalic acid is used to prepare various resins and coatings.
3. Plastic: Involves the production of engineering plastics that require high durability and chemical resistance.
4. Additives: Terephthalic acid can be used as a chemical intermediate in the synthesis of other compounds.
Packed in 25 kg per drum or based on customers' requirements.
To safely store terephthalic acid, follow these guidelines:
1. Container: Store terephthalic acid in sealed containers made of appropriate materials, such as glass or high-density polyethylene (HDPE) to prevent contamination and moisture absorption.
2. Location: Store the container in a cool, dry and well-ventilated place away from direct sunlight and heat sources. Avoid storage in places with high humidity.
3. Temperature: Maintain storage temperature within the recommended range, typically below 25°C (77°F), to prevent degradation or change in properties.
4. Label: Clearly label containers with chemical name, hazard information, and receipt date to ensure proper identification and handling.
5. Separation: Please store away from incompatible substances, such as strong oxidants, to prevent any potential reactions.
6. Safety Precautions: Ensure appropriate safety precautions are in place, including personal protective equipment (PPE) for anyone handling the material.
Terephthalic acid is generally considered to have low toxicity, but it still poses some health risks in certain situations. Here are some key points about its potential harm to humans:
1. Inhalation and Skin Contact: Long-term exposure to terephthalic acid dust or vapor may irritate the respiratory tract, skin and eyes. It is recommended to use appropriate protective equipment when handling this material.
2. Ingestion: Although terephthalic acid is not usually ingested, accidental ingestion may cause gastrointestinal irritation.
3. Regulatory Status: Terephthalic acid is not classified as a carcinogen or a significant health hazard by major health and safety organizations, but the Safety Data Sheet (SDS) should be consulted for specific handling and exposure guidelines.
4. Environmental impact: Although terephthalic acid does not cause direct harm to the human body, if it is released in large quantities, it will have an impact on the environment, thereby indirectly affecting human health.
When transporting terephthalic acid, it is important to follow specific precautions to ensure safety and compliance with regulations. Here are some key considerations to take into account:
1. Packaging: Use appropriate containers that are compatible with terephthalic acid. Generally, it should be stored in sealed, labeled containers made of materials that do not react with the acid.
2. Label: Clearly label all packaging with correct chemical names, hazard symbols and handling instructions. Ensure labeling complies with local and international regulations.
3. Transportation regulations: Follow regulations for chemical transportation, such as the U.S. Department of Transportation (DOT) or the International Air Transport Association (IATA) for air transportation. Terephthalic acid is not generally classified as a dangerous good, but it is important to verify specific regulations.
4. Temperature Control: Store and transport terephthalic acid in a cool and dry place to prevent degradation or reaction with moisture.
5. Avoid contamination: Ensure that there are no contaminants in the transportation environment that may react with terephthalic acid.
6. Personal Protective Equipment (PPE): Ensure that personnel handling the transport process wear appropriate PPE, such as gloves and goggles, to prevent skin and eye contact.
7. Emergency Procedures: In case of spills or leaks during transport, develop emergency procedures. This includes having a spill kit and first aid supplies ready.
8. Documentation: Maintain appropriate shipping documentation, including Safety Data Sheets (SDS) and any required permits or declarations.
