Ecolab Inc. reported a 12% increase in its first-quarter net profit and raised its outlook for the rest of the year, led by double-digit sales growth for its cleaning services in the U.S. and Latin America. For the three months ended March 31, Ecolab posted net income of $77.9 million (30 cents a share) up from $69.4 million (27 cents a share) a year ago. The company said that the frequent strong sales in its U.S., Latin American and Asia Pacific businesses enabled it to produce record res...