That how to identify whether 3A molecular sieve desiccant can be used to identify whether the Food and Drug then molecular sieve desiccant for food, there are two methods:? A desiccant whether related to food safety inspection reports, for example:? Microorganisms, heavy metals, abnormal toxicity Wait. Second, the desiccant packaging material meets the requirements for food packaging? Package materials in direct contact with food, is more important than the safety of the contents. Currently packaging material categories, food-grade composite plastic, DuPont paper is more suitable. (Our mineral fiber desiccant drying agent and the column devoted to food, many customers currently use), but exports to the desiccant will be relatively stringent requirements of Hangzhou molecular sieves, especially to the United States Food and Drug, all materials must be FDA approved. (DuPont paper has FDA certification). Shanghai there are new molecular sieve welcome your advice! 3A molecular sieve, sieve new! Shanghai Co., new pore molecular sieve is zeolite 4A molecular sieves 4A Xinghua, Ningbo molecular sieves adsorb water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene, does not adsorb any molecular diameter greater than 4A (including propane), of selective adsorption of water than any other molecules. Zeolite is one of the largest amount of variety in the industry. 4A molecular sieve is an alkali metal aluminosilicate, can adsorb water, NH3, H2S, sulfur dioxide, carbon dioxide, C2H5OH, C2H6, C2H4, etc. is not greater than the critical molecular diameter of 4A. Widely used in gas, liquid and dried, it can also be used in some refining and purification of gases or liquids such as argon gas system. Wenzhou molecular sieves, there are new molecular sieves (certified), there is a new zeolite molecular sieves by the Shanghai Limited. Shanghai new molecular sieve Limited (www.molsionms.com) is Shanghai's Songjiang District, elemental leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. There are new leaders in the molecular sieve with the staff warmly welcome all inquiries negotiations to create new molecular sieves better future.