Usage: use system chemicals, rubber coagulate agent and textile, printing, dyeing, electroplating, etc. In the pharmaceutical industry, can make local stimulate medicine, astringent and bubble creams, also AnNaiJin, caffeine, produce the important raw materials such as vitamin B1; In the pesticide industry, formic acid can be making the risk-benefit ratio pesticide insecticidal ether, powder rust ning, much effect thiazole; Leather industry can manufacture tanning agents, the ash from agents and neutralizing agent; Chemical industry used in the production of phthalic acid salt, ammonium, made etc