Evacuation chlorine, procedures

Liquid aluminum sulfate storage and sign, 34 2-5 Carbon dioxide warning sign and detector, 36 2-6 Posted chlorine evacuation procedure, 38 2-7 Breathing apparatus, 39... 

In the event of a spill or leak involving chlorine, persons not wearing protective equipment and fully-encapsulating, vapor-protective clothing should be restricted from contaminated areas until cleanup has been completed. Figure 2-6 shows a posted chlorine leak evacuation procedure. The following steps should be undertaken following a spill or leak ... 

Tellurium tetrafluoride (0.72 g, 3.5 mmol) is placed in the 25-mL Teflon vessel inside the dry box. The vessel and contents are evacuated for 1 hr. Chlorine monofluoride (0.42 g, 7.9 mmol) is condensed in small aliquots (aliquots of 0.23 g of CIF have been used this mount corresponds to approximately 100 mL of CIF at a pressure of 760 torr) onto the tellurium tetrafluoride at — 196°. The reactants are warmed to room temperature and left for at least 20 min. This procedure is repeated until all of the CIF is consumed. The reactants are allowed to stand overnight at 25°. The solid TeF4 is gradually consumed, and a yellow liquid is formed. The product is separated by holding the Teflon vessel at — 78° and allowing any volatile materials to distill into another vessel held at —196° for a period of about 1 min. The more volatile fraction consists of unreacted CIF and traces of SiF4, TeClFj, and fluorocarbon impurities. Upon warming the Teflon vessel that contains the less volatile fraction to room temperature, clear liquid, TeClFj, is observed. 

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