What key information must be provided in a chemical label?

Chemical labels play a crucial role in ensuring safety in environments where hazardous substances are handled. They are designed to communicate essential information to users, which helps prevent accidents and promote safe handling practices.

The correct choice highlights the critical elements required on a chemical label: hazard warnings, product identification, and manufacturer details. Hazard warnings alert users to potential dangers associated with the chemical, such as toxicity, flammability, or reactivity. Product identification provides the name of the chemical and often its formulation, allowing users to recognize it and understand its specific properties. Manufacturer details include the name and contact information of the producer, ensuring that users can seek additional information or support if needed.

Considering the other options, listing only the product price does not contribute to safety or provide any relevant information regarding the proper handling of hazardous chemicals. Expiration dates, while important for some products, do not encompass the broader scope of information necessary for safe chemical management. Instructions on usage are useful but do not replace the vital need for hazard communication that labels must provide.