White powder, hygroscopicity, easy soluble in water, soluble in ethanol. Low toxicity , half lethal dose: 3530 mg/ Kg(rat, per os) . Density: 1.528 g/ ml, melting point: 324 ℃, refraction : 1.464.

It is used in many aspects, such as organic synthetical esterifing agent, photographic chemicals, medicine, mordant in dyeing printing, buffers agents, chemical reagent, meats preservation, pigments, tanning, and so on. It can be used for preparing various of chemical products, such as furan acrylic acid, acetic acid esters and chloroacetic acid ,etc.. As the buffers agents of spices, the product can assuage unpleasant odor and prevent form discoloring, has a certain role of mould proof. It also can be used as acidiyty regulaters, like bechamel, pickle, mayonnaise, kamaboko, sausage, bread, sticky cake,etc.. If mixed with methylcellulose and phosphate, it can improve the storability of sausage, bread, sticky cake, etc..