| 1. | Chemical products . stannous sulphate for electroplating
化学制品.硫酸锡 |
| 2. | Preparation of stannous chloride stock solution
氯化亚锡储备液的配制 |
| 3. | Determination of palladium content - stannous choride - potassium iodide spectrophotometric method
碘化钾分光光度法测定钯量 |
| 4. | The stannous chloride - mercuric chloride - potassium dichromate volumetric method for the determination of total iron content
重铬酸钾容量法测定全铁量 |
| 5. | Urine . determination of mercury . cold atomic absorption spectrometric method . acidic stannous chloride reduction method
尿中汞的冷原子吸收光谱测定方法 |
| 6. | Sponge titanium , titanium and titanium alloys - determination of palladium content - stannous choride - potassium iodide spectrophotometric method
海绵钛钛及钛合金化学分析方法氯化亚锡-碘化钾分光光度法测定钯量 |
| 7. | Modified polylactic acid is synthesized from lactide and aminophenol by morpholine - dione with stannous octoate as the crystal
摘要以聚乳酸为主体，通过化学方法，合成聚乳酸/氨基酸共聚物，并对其药物缓释性能做了研究。 |
| 8. | Jcig lianhua welfare chemical industry factory - specialized producer of triethyl phosphate , methyl phosphate , methyl dichloroacetate , stannous oxide , and palladium chloride
[吉化集团吉林市联化福利化工厂生产磷酸三乙酯、氯化钯等二种化工产品。 |
| 9. | Polylactic acid ( pla ) of different molecular weights were synthesized by the direct condensation of lactic acid with modified gneiss as the catalyst , or with modified gneiss and stannous caprylate as the catalyst in the same reaction conditions and different reaction times
摘要以天然矿石改性片麻岩为聚合反应的催化剂，通过直接缩聚方法制备了不同分子量的聚乳酸。 |
| 10. | The main work and the conclusion of the article are : ( 1 ) give a suggestion on the reaction mechanism and the principle of catalyst selection . ( 2 ) by comparison of the catalyst activity of solid superacid with the zinc oxide , stannous chlorde and tin ( ii ) octate in the synthesis reaction . we find that although its activity is lower than tin ( ii ) octate , obviously higher than that of traditional zinc oxide and stannous chlorde . from the point of preparation cost , we select solid superacid as catalyst
但从催化剂的制备成本和工艺的角度选择，固体超强酸具有明显的优势； ( 3 )制备一系列单组元和双组元硫酸促进氧化物固体超强酸，并用于丙交酯的合成反应，筛选具有最佳活性的固体超强酸催化剂： ( 4 )使用so2 - 4 / zno - sno2 ( 2 ： 1 ) la3 +固体超强酸作催化剂，反应脱水时间1 |
