Results: average recovering ratio is 100.3% of methylene chloride and 99.9% of dimethyl acetylamide and 99.4% of glacial acetic acid. 结果:平均回收率:二氯甲烷100.3%二甲基乙酰胺99.9%冰乙酸99.4%。
Testing methods for polyvinyl chloride Determination of nitrilotriacetic acid in sodium iron(ⅲ) ethylenediaminetetraacetate for nutritional fortifier 聚氯乙烯(PVC)试验方法营养强化剂乙二胺四乙酸铁钠中氨基三乙酸的检测方法研究
It may also cause you to lose a lot of salt ( sodium chloride) so that the amount of chloride ions in the blood necessary for creating gastric acid will decrease. 大量流汗还会引起盐分(氯化钠)大量丧失,使血液中形成胃酸所必需的氯离子储备量减少,从而影响胃液中盐酸的生成,不利于铁和钙的吸收。
Anhydrous hydrogen chloride is considered non-corrosive. In the presence of moisture it will form hydrochloric acid. 无水氯化氢被认为是没有腐蚀性的。在有水蒸汽存在的情况下,它会生成氢氯酸。
Ferric chloride can be ased as catalyst for the esterification instead of Sulphuric acid. 氯化铁能够代替硫酸作为酯化作用的催化剂。
The pharmaceutical grade calcium chloride production is mainly adopted technology of the lime stone-hydrochloric acid. 食品医药级氯化钙产品主要采用盐酸石灰石工艺生产。
Detection of the contents of phosphorus acid, hydrochloric acid and sodium chloride in the waste of N-( phosphonomethyl) iminodiacetic acid by ion chromatography 离子色谱法检测双甘膦废液中亚磷酸、盐酸及氯化钠含量
Cooler leakage and high moisture content of hydrogen chloride feed gas caused less output and substandard product of a chlorosulfonic acid plant. 由于排管冷却器泄漏和原料氯化氢气体水分含量偏高,氯磺酸装置产量不达标,产品质量差。在改造过程中,对排管冷却器进行维修,以克服冲刷腐蚀和消除遗留的泄漏因素;
Maltitol stearic acid ester was synthesized by condensation of maltitol with stearoyl chloride in the presence of the catalyst and with acetic acid as solvent. 以麦芽糖醇、硬脂酰氯为主要原料,在催化剂存在下,在醋酸溶剂中缩合成麦芽糖醇硬脂酸酯。
Chloro 3 sulphamoyl benzoyl chloride(ⅰ) was prepared by the reaction of 4 chloro 3 sulphamoyl benzoic acid and thionyl chloride, yield 97 4%. 4-氯-3-磺胺基苯甲酸与亚硫酰氯反应得4-氯-3-磺胺基苯甲酰氯(),产率97.4%;
The effect of peracetic acid, peracetic acid and calcium chloride, calcium chloride on the preservation of strawberry was studied in this paper. The results showed that peracetic acid had the best preservation action, calcium chloride preservation action was the worst. 比较了过氧乙酸、过氧乙酸+氯化钙、氯化钙3种保鲜剂对草莓贮藏保鲜效果的差异,结果表明过氧乙酸保鲜效果最好,其次是过氧乙酸+氯化钙,氯化钙处理保鲜效果最差。
The experimental process for recovery molybdenum and ammonium chloride from mother liquors of ammonium molybdate and ammonia leaching molybdic acid using HT adsorbents is presented. 介绍利用HT吸附剂从钼酸铵母液及氨浸钼渣酸分解母液中回收钼及氯化铵的实验过程。
Stinnic chloride could be used as catalyst for esterification instead of sulphuric acid. 四氯化锡可代替硫酸作为酯催化剂。
METHODS The production technology design was adopted to research the effects of 3 factors, including the concentration of sodium chloride, the press of advance water and the outflow scale ( acid ∶ alkali) on the content of available chlorine, pH and ORP value of EOW. 方法:采用正交试验设计系统考察氯化钠浓度、饮用水进水量及出水比例(酸∶碱)3个因素对酸性氧化电位水pH值、ORP值与有效氯含量的影响。
Effect of chloride ion on stress corrosion cracking of type 316 austenitic stainless steel in polythionic acid solution 氯离子对316L不锈钢在连多硫酸中应力腐蚀的影响
Which is more favorable for coloring of potassium chromate and improving testing precision in using water dissolving sample to test chloride ions, the concentration of sulfuric acid needs to dilute in view of practical situation. 而对水溶性氯离子含量的测定,稀硫酸的含量视实际情况进一步稀释,更有利于铬酸钾的显色范围,提高测试精度。
The use of phase-transfer catalysis in Palladium-Catalyzed Carbonylation of benzyl chloride for the synthesis of phenylacetic acid 在相转移下苄基氯经钯络合催化羰化合成苯乙酸
The existing state of processes on absorption of high-and low-concentration hydrogen chloride gas, desorption of concentrated and dilute hydrochloric acid and application of graphite equipment in these processes are introduced. 介绍了高浓度氯化氢气体吸收、低浓度氯化氢气体吸收、浓盐酸脱吸、稀盐酸脱吸的工艺现状及石墨设备在这些工艺中的应用。
In-door experiments show that hydrogen chloride and mud acid have stronger trend of causing sludge than phosphoric acid and acetic acid when contact with oil, which produce above 1 g sludge. 室内实验表明,盐酸和土酸与原油形成酸渣的趋势强于磷酸和乙酸,酸渣量达1g以上;
The technology of low pressure synthesis of tetracarbonyl cobalt with cobalt chloride and sulfur compounds with low valency has been used in the production of phenylacetic acid by carbonyl synthesis with benzyl chloride. 应用氯化钴和低价含硫化合物低压合成四羰基钴盐的技术于氯苄羰化合成苯乙酸的生产中。
Using of acid to solubilize samples, using of stannous chloride to reduce most of ferric iron in the acid medium, using of titanous chloride to reduce residual ferric iron, total ferro quantity can be determined by potassium dichromate titration. 采用酸分解试样,在酸性介质中,以二氯化锡还原大部分三价铁,三氯化钛还原剩余三价铁,用重铬酸钾滴定测全铁量。
In this paper, determination of rhodium in Pt-Rh alloy by dual-wavelength differential spectrophotometric method has been studied. The colour complex of Rh with stannous chloride was formed in medium of hydrochloric acid. 研究了在盐酸体系中用氯化亚锡显色,用双波长差示分光光度法测定铂铑合金中的铑。
Polyaluminum chloride was made by three kinds of aluminum wastes dissolved by muriatic acid in one-step. 采用酸溶一步法利用三种铝质固体废料制取了聚合氯化铝。
The preparation of polyaluminium ferric chloride from the reaction of sulphur-ferric ore dregs and hydrochloric acid is introduced. 利用硫铁矿渣和盐酸反应制备水处理剂聚合氯化铁铝。
Second, the effect of chloride ions on separation of amino acid was studied and he corresponding desalination method of the macroporous sulfonated ion-exchange as proposed. 其次,研究了盐分对氨基酸分离的影响,并提出了大孔强酸型阳离子交换树脂脱盐的方法。
With 10% of glycerol concentration, 30% of methylene chloride concentration, 9% of oleic acid concentration, optimum adhesion properties of modified zein were achieved. 当丙三醇浓度为10%,二氯甲烷浓度为30%,油酸浓度为9%时,改性玉米醇溶蛋白的粘结性分别达到最佳。
Polyvinyl chloride ( PVC) is usually polymerized by vinyl chloride monomer. Because of good acid resistance, alkali resistance and mechanical strength, it has a large amount of demand, more than 10 million tons every year in recent years. 聚氯乙烯(PVC)通常由氯乙烯单体合成,由于有优异的耐酸、耐碱性及机械强度高等特点,国内需求量很大,近年来年均超过千万吨。
Meanwhile chloride ion concentration and pH value variation of the ordinary concrete pore solution and the neutralization ( acid and carbonation) pore solution before and after CLDH treatment were compared. 同时对CLDH处理前后的普通混凝土孔隙液和中性化(酸化与碳化)孔隙液中氯离子浓度和pH值的变化进行了分析比较。