Experimental 2-Chloroethyl Methyl Ketone (I).--Paraformaldehyde (240 g., 8 moles) suspended by stirring in refluxing acetone 11 174 ml., 16 moles) was treated with dry hydrogen chloride: it such a rate as to maintain boiling of the mixture. When: ill paraforrnaldehycir had dissolved (about two hours), the riiisture wis stirred two hours more, cooled, treated with itiihytirous calciuin chloride to saturation, and left for several tiour,. ...