1·Take up the residue in 2 quantities, each of 5 ml, of dilute hydrochloric acid R.
将供试品炽灼残渣分成两份，每份加入5ml稀盐酸。
2·Difficult to dissolve in water, soluble in dilute hydrochloric acid and nitric acid, in the air and stability.
难溶于水，易溶于稀盐酸和硝酸，在空气中稳定。
3·Under the proper temperature, the proper dilute hydrochloric acid liquid can reach 20% or so of pectin production rate.
适当浓度的盐酸在适当的温度、时间下可以得到20%左右的果胶产率。
4·The influence of experimental conditions, which were taking the pectin out by means of soaking the sugar-beet bagasse with dilute hydrochloric acid liquid was studied.
本文讨论了利用稀盐酸从甜菜渣中浸提果胶的实验条件对产率的影响。
5·The residue was washed with dilute hydrochloric acid solution, The precipitation was dried, purified, and identified by the infrared spectrometry (IR) and high mass spectrometry(HRMS)with DES-HS.
反应产物用稀盐酸溶液洗涤，将所得沉淀干燥后经分离纯化，对纯化产物进行高分辨质谱、红外光谱鉴定。
6·Nitric acid is sulfuric acid and hydrochloric acid small, easily soluble in water, in the water under the ionization completely colorless transparent, strong dilute solution show brown solution.
硝酸的酸性较硫酸和盐酸小，易溶于水，在水中完全电离，常温下其稀溶液无色透明，浓溶液显棕色。
7·UHMWPE has a fine corrosion resistance to inoxidable acid (dilute sulfuric acid, nitric acid and large concentration hydrochloric acid, phosphorus acid, hydrofluoric acid, and salty solutions.
UHMWPE对非氧化性酸（烯硫酸、硝酸及浓度较大的盐酸、磷酸、氢氟酸、甲酸、乙酸）、氨和胺及各种碱、盐溶液都有两好的耐蚀性、两种材料都不耐强氧化性酸的腐蚀。