Description: 556 organic compounds -- part of the class 532-570 series / 556 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) (1) heavy metal containing (e.g., ga, in or t1, etc.) (81) germanium, tin, or lead containing (ge, sn, or pb) (87) carbon bonded directly to the metal (95) the compound consists of the metal, carbon and hydrogen or the metal, carbon, hydrogen and halogen (e.g., tetraalkylleads, etc.) (98) preparing by reacting free heavy metal or heavy metal containing alloy with hydrocarbyl halide (e.g., reacting pb-na alloy with hydrocarbyl chloride, etc.) (100) phosphorus containing material or organic nitrogen containing compound utilized
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