PAG 5.1 Synthesis of a haloalkane – Identity / amount required Label Hazard information per learner or group 2-methylpropan-2-ol, DANGER CH3CH(CH3)ClCH3(l) Highly flammable liquid and vapour. c. 6.5 cm3 (5 g). 2-methylpropan-2-ol Causes serious eye irritation. Harmful Note: 2-methylpropan-2-ol has a if inhaled. May cause respiratory melting temperature of 25.5C – irritation. ensure it has melted before supplying the learners. DANGER Causes severe skin burns and eye concentrated hydrochloric damage. May cause respiratory acid, HCl(aq) conc. HCl(aq) irritation. c. 20 cm3 Wear splash-proof goggles/face shield Wear chemical resistant gloves 5% w/v sodium hydrogencarbonate 5% NaHCO3(aq) Currently not classified as hazardous solution, NaHCO3(aq) c. 50 cm3 anhydrous sodium sulfate(VI) Na2SO4(s) Na2SO4(s) Currently not classified as hazardous c. 3 g 0.4 mol dm–3 aqueous WARNING nitric acid, HNO3(aq) HNO3(aq) Causes skin irritation and serious eye a few drops irritation Currently not classified as hazardous at this 0.05 mol dm–3 aqueous concentration silver nitrate, AgNO3(aq) Solutions cause skin to blacken and will stain a few drops clothing and some bench surfaces.
PAG 5.1 – Synthesis of a haloalkane Label Identity / amount required per learner or group Hazard information 2-methylpropan-2-ol 2-methylpropan-2-ol, CH3CH(CH3)ClCH3(l) c. 6.5 cm3 (5 g). Note: 2-methylpropan-2-ol has a melting temperature of 25.5C – ensure it has melted before supplying the learners. DANGER Highly flammable liquid and vapour. Causes serious eye irritation. Harmful if inhaled. May cause respiratory irritation. conc. HCl(aq) concentrated hydrochloric acid, HCl(aq) c. 20 cm3 DANGER Causes severe skin burns and eye damage. May cause respiratory irritation. Wear splash-proof goggles/face shield Wear chemical resistant gloves 5% NaHCO3(aq) 5% w/v sodium hydrogencarbonate solution, NaHCO3(aq) c. 50 cm3 Currently not classified as hazardous Na2SO4(s) anhydrous sodium sulfate(VI) Na2SO4(s) c. 3 g Currently not classified as hazardous HNO3(aq) 0.4 mol dm–3 aqueous nitric acid, HNO3(aq) a few drops WARNING Causes skin irritation and serious eye irritation 0.05 mol dm–3 aqueous silver nitrate, AgNO3(aq) a few drops Currently not classified as hazardous at this concentration Solutions cause skin to blacken and will stain clothing and some bench surfaces.
Required%20chemicals%20for%20OCR%20Chemistry%20PAG%20Activities%20v1.0.docx