What type of information can be found on a chemical label?

The correct choice provides vital information that a chemical label must contain, ensuring safety and proper handling. A chemical label typically includes the product name, which identifies the substance, hazard warnings indicating potential dangers associated with the chemical, and safety precautions that inform users of necessary protective measures. This information is essential for anyone handling the chemical, as it helps in mitigating risks and promoting safe practices.

While the other options mention relevant information, they fall short of encompassing the full scope typically found on a chemical label. For instance, while handling instructions and expiration dates can be important for certain products, they are not universally required on all chemical labels. Similarly, knowing environmental impacts and disposal methods is crucial, yet this information is often found in safety data sheets rather than directly on the label itself. Additionally, while the product name and manufacturer contact are certainly useful, they do not provide the necessary safety-related guidance that is critical for safe usage.