D Ecolab Inc. will acquire Alcide Corp., a Redmond, WA-based producer of biocidal and sanitation products that are primarily used in the dairy, meat and poultry industries. It had worldwide sales of approximately $22 million in calendar 2003.The agreement calls for a tax-free exchange in which Alcide shareholders will receive $21 per share to be paid in Ecolab shares based on a formula of Ecolab’s closing price prior to the effective date of the merger. Alcide had 2.7 million shares outsta...