The invention relates to
amino acid composite acid cleaning inhibiter and an application method thereof. The inhibiter consists of
amino acid, iodized salt and hexadecyl trimethyl
ammonium bromide, and the
mixing ratio of the three components is 1-5: 1-5: 1-5; the inhibiter is used for industrial acid cleaning together with acid
pickling solution, and the application method is as follows: the acid
pickling solution is dilute sulphuric acid or dilute
hydrochloric acid with 0.1m to 2m of concentration, the weight content of the inhibiter in the acid
pickling solution is 0.001g / l to 2.0g / l, the acid cleaning temperature is 20 DEG C to 60 DEG C, and the acid cleaning time is 0.5h to 6h. The invention is mixed inhibiter with
amino acid as the main component; amino acid can be well dissolved in water, has no
toxin and harm to the environment, is capable of
biodegradation, has high restraining efficiency, strong continuity capability and is very potential green inhibiter; in addition, the inhibiter has high efficiency, has no
toxin and harm, small dosage and quite low production cost, and opens up a novel field for the safety and high-efficiency utilization of inhibiter.