Final answer:
Section 2 of a Safety Data Sheet (SDS) includes hazards and warnings about the chemical substance in question. It provides information about health risks, reactivity, and flammability. The NFPA 704 Hazard Identification System, often recognized as a hazard diamond, is used alongside SDSs to communicate these hazards visually.
Step-by-step explanation:
Section 2 of a Safety Data Sheet (SDS) contains critical information concerning the hazards associated with a chemical substance. This information includes hazards and warnings, which is the correct answer to what can be found in Section 2 of an SDS. These hazards and warnings inform users about the potential risks such as the chemical's reactivity, flammability, and health impacts. SDSs are critical in providing safety information and are a key resource for ensuring safe chemical handling and emergency response.
The NFPA 704 Hazard Identification System complements SDSs by using a diamond symbol to visually convey the hazards of substances, rating them on a scale from 0 (no hazard) to 4 (extreme hazard). This includes reactivity data, fire and explosion potential, and health risks. It's important for students and professionals working with chemicals to review both SDSs and the NFPA hazard diamond to fully understand the hazards of the substances they handle.