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SILICON
Natural Abundance, Stable Isobars Si28, 92.18%, None Si29, 4.70% Si30, 3.12% Liquid silicon tetrachloride is the only material which has been used in the separation of silicon isotopes. This material is purchased from a commercial source and supplied to the calutron from a style SE container located outside the calutron unit. Silicon tetrachloride is a corrosive liquid. When exposed to atmospheric moisture it hydrolyzes to form hydrogen chloride, which is very toxic. The vapors of SiCl4 will cause damage to ocular and respiratory membranes as well as the skin surface, and the capacity of this compound for destroying blood cells is considerable. Protective measures to be observed while handling this material include wearing safety clothing, rubber gloves, gas-tight goggles, and a respirator suitable for absorbing gaseous materials. |
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