reaction. A thick walled schlenk flask or a flask with a reflux condenser or other ventilation should be used. These precautions should be used to avoid the rupturing of the reaction vessel if there is a release of hydrogen chloride gas as the reagent decomposes. For small quantities (<10 mL) a syringe should be used to transfer trichlorosilane from its container to the reaction vessel. Large quantities (>60 mL) may be transferred using a cannula. For intermediate quantities (10-60 mL) either a syringe or a cannula may be used to transfer the reagent. Syringe and cannula transfer are used in all cases because trichlorosilane reacts with moisture in the air to form hydrochloric acid and a white residue (silica gel, SiO2). Trichlorosilane should be disposed of if it no longer appears as it should (based on the supplier description). To dispose of, it can be submitted to EH&S as is. It can also be added slowly to a solution of aqueous base at 0 °C to quench the reagent. The quenched reagent can then be added to standard liquid waste. Notes Any deviation from this SOP requires approval from PI.
reaction. A thick walled schlenk flask or a flask with a reflux condenser or other ventilation should be used. These precautions should be used to avoid the rupturing of the reaction vessel if there is a release of hydrogen chloride gas as the reagent decomposes. For small quantities (<10 mL) a syringe should be used to transfer trichlorosilane from its container to the reaction vessel. Large quantities (>60 mL) may be transferred using a cannula. For intermediate quantities (10-60 mL) either a syringe or a cannula may be used to transfer the reagent. Syringe and cannula transfer are used in all cases because trichlorosilane reacts with moisture in the air to form hydrochloric acid and a white residue (silica gel, SiO2). Trichlorosilane should be disposed of if it no longer appears as it should (based on the supplier description). To dispose of, it can be submitted to EH&S as is. It can also be added slowly to a solution of aqueous base at 0 °C to quench the reagent. The quenched reagent can then be added to standard liquid waste. Notes Any deviation from this SOP requires approval from PI.