Global Diethyl Sulfate Market By Type (By Absorption Of Ethylene In Sulfuric Acid, and By Fuming Sulfuric Acid In Ethyl Ether Or Ethyl Alcohol), By Application (Coatings, Pharmaceuticals, Personal Care, Detergents, and Textile), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028