7.The assay of content of methoxyamine hydrochloric acid using phenolphthalein indicaor and NaOH as titrant was developed.
提出了以酚酞为指示剂,氢氧化钠为滴定剂测定甲氧胺盐酸盐含量方法。
8.Cross-linking agent glycoluril with a yield of 61.8% had been synthesized by employing urea and glyexal as reactants,and hydrochloric acid as catalysts.
以尿素和二醛为原料,在酸催化条件下合成了甘脲,产率为61.8%。
9.Camphor oil was abstracted from the greenheart leaf by the steam-distil method and used as main component of corrosion inhibitor for hydrochloric acid cleaning.
用水蒸气-蒸馏法从樟树叶中提取桉叶油;
10.Iodimetry was applied to determine cysteamine products,2 mercapto thiazoline saturated cysteamine,and 2 mercapto thrazoline saturated hydrochloric solution(blank).
讨论了由噻唑啉水解法生产胺产品中胺含量测定方法。
11.This paper texted the process to prepare metadoxine from vitamine B6 hydrochloric acid salt ,pyroglutamic acid and isoproanol.
本文以维生素B6氯化氢盐、焦谷氨酸和异丙醇为原料,固相合成美他多辛,纯度达96.3%。
12.The corrosion potential of aluminium is measured in hydrochloric acid solution which contains sulfourea of different concentration at 25℃ and 35℃ by electrochemical method.
在25℃和35℃条件下,用电化学方法,对铝在含有不同浓度硫脲盐酸溶液中进行腐蚀电位测试。
13.The viscosity increaser of microcrystalline cellulase used in synthetic leather is prepared by using cotton pulp as raw material and waste hydrochloric acid as hydrolyst.
14.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 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.
16.Also Ke Jifa after resection of greater part of lack of masticatory obstacle, hydrochloric acid in gastric juice, stomach, bowel the disease such as verminosis suffers from.
也可继发于咀嚼障碍、胃酸缺乏、胃大部切除术后、肠道寄生虫病等疾患。
17.S-Methyl-isothiourea sulfate was oxidized by hydrogen peroxide to give methylsulfonyl chloride in 70% yield in aqueous hydrochloric acid solution.The product was characterized by 1HNNR and IR.