This product is used as a buffer of seasoning agent and meat preservative in food production, to control the sticky phenomenon caused by fungi in bread production, and to preserve grains with high water content. This product can also be used as textile printing and dyeing auxiliaries (mordants), buffers for photographic industry, chemical reagents and pharmaceutical intermediates. It can also be used as raw materials for the synthesis of organic chemical products, such as furan acrylic acid, acetate, chloroacetic acid, acetic anhydride and cinnamic acid.