This appendix consolidates hazard information, required PPE, first aid procedures, and waste disposal guidance for all chemicals used in the manual into a single risk-coded reference table. Twenty-eight chemical entries are organised by experiment, with risk levels colour-coded as Very High, High, Moderate, or Low. The most hazardous entries — classified as Very High risk — include potassium dichromate (K2Cr2O7, Group 1 IARC carcinogen requiring mandatory chromate waste segregation), benzene (Group 1 carcinogen, flash point −2°C), phenol (corrosive, absorbed through skin causing delayed burns), formaldehyde (probable carcinogen IARC Group 2A), chromic acid cleaning solution, and diethyl ether (extremely flammable, flash point −45°C). For each chemical, the appendix specifies: hazard description; risk level; required PPE and engineering controls; first aid and emergency response; and waste disposal stream. The appendix notes that it provides a simplified teaching guide only, and that the full Safety Data Sheet (SDS/MSDS) and the institution's COSHH assessment take precedence.