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在原先研究成功的ＤＳＣＨ－１型多用酸洗缓蚀剂的基础上，对缓蚀剂的配方、添加剂的影响、缓蚀机理等，进行了进一步的研究和改进，研制成新型的ＤＳＣＨ－２缓蚀剂，它适用于多种金属在多种酸中酸洗时的缓蚀。例如，２０锅炉钢和紫铜在５５±１ ℃的ＨＣｌ中缓蚀效率分别达到９８．９％和８５．６％，缓蚀效果优良，缓蚀剂用量可大大降低，酸洗液长时间保持澄清，没有沉淀物，减少了对环境的污染。
Based on the successful DSCH-1 multi-purpose pickling corrosion inhibitor, further studies and improvements were made on the formulation of corrosion inhibitors, the influence of additives and the corrosion inhibition mechanism, and a new DSCH-2 Corrosion inhibitor, which is suitable for a variety of acids in a variety of acid pickling corrosion inhibition. For example, the corrosion inhibition efficiencies of 20 boiler steel and copper in 55 ± 1 ℃ HCl reached 98.9% and 85.6%, respectively. The corrosion inhibition effect was excellent, the dosage of corrosion inhibitor could be greatly reduced, and the pickling liquid remained clear for a long time , No sediment, reducing the pollution of the environment.