Abstractε‐Caprolactam is converted to ε‐aminocaproic acid polymer by heating under pressure with water followed, by distillation of the water and heating at atmospheric pressure. The lactam is also polymerized directly to this polymer by a catalytic method in which sodiocaprolactam is the initiator.

Reaction of Ethylene with Carbon Tetrachloride 2529 V+++, its hydrolysis products V(OH)++ and VO+.2. Data are presented on the ionic states and polarographic characteristics of +2 and +3 vana-dium in solutions of dilute acids and alkalies, acetate buffers, and of the various halide ions.Cambridge, Mass.

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