硫酸甲醛值 的英文怎麼說
中文拼音 [liúsuānjiǎquánzhí]
硫酸甲醛值
英文
formolite number- 硫 : 名詞[化學] sulphur; sulfur [美國] （16號元素, 符號s）
- 酸 : 酸構詞成分。
- 甲 : Ⅰ名詞1 （天乾的第一位） the first of the ten heavenly stems2 （爬行動物和節肢動物身上的硬殼） she...
- 醛 : 名詞[化學] （有機化合物的一類） aldehyde
- 硫酸 : [無機化學] sulphuric acid; sulphoacid; vitriol; vitriol oil; dipping acid; sulfuric acid; hydric ...
- 甲醛 : [有機化學] formaldehyde; cascophen; arofene; methanal; formol; methylene oxide
-
It was found that before the plating, there is section time to gestating, that we call the " gestating time " and the plating was ended spontaneously after some time, named " plating time ". the analysis of the solution after plating indicated that the too much decrease of ph value results in the reaction to be stopped. the plating time was shortened when the ph and the temperature of the bath were increased
結果表明，鍍液ph浙江大學碩士學位論文范啟義2003年3月摘要值、施鍍溫度提高，由於反應的速度加快，使反應時間縮短；硫酸銅濃度提高，有助於加快反應速度，從而縮短反應時間； edta濃度提高，使鍍液穩定性升高，對反應時間的影響等效于硫酸銅濃度的降低；而甲醛濃度提高，雖然反應的速度加快，但由於可用於還原的量增加，因此反應時間增加；裝載量提高，因能鍍覆的表面積增加，使反應時間縮短。Abstract : the method of using formaldehyde buffer solution a b sorption - hydrochloric pararosaniline spectrophotometry to determine sulfur diox ide in air has higher sensitivity and good selectivity, and prevents from adoptin g mercurial absorbent. but the conditions in lab are not well controlled, the v alue of reagent blank and standard curvilinear slope can ' t accord with the one s tipulated in “ methods for air and waste gas monitoring and analysis ”. some opra tional techniques for so2 determination in lab are introduced for reference
文摘:以甲醛緩沖溶液吸收-鹽酸副玫瑰苯胺分光光度法測定空氣中的二氧化硫，方法靈敏度高，選擇性好，避免了使用含汞的吸收液，但如果實驗條件控制不好，試劑空白值及標準曲線的斜率就會不符合《空氣和廢氣監測分析方法》中規定的值，本文著重從操作技巧方面對二氣化硫測定的實驗室質量控制進行分析，僅供參考。The results showed that the factors that could shorten the plating time increased the plating rate. the plating rate was increased when the ph and the temperature of the bath were increased. it was also increased by increasing the concentration of copper sulfate and by decreasing the concentration of edta
結果表明，鍍液出值和施鍍溫度升高，鍍速提高：提高硫酸銅濃度，可以增加鍍速； nm濃度提高，鍍液穩定性增加，鍍速下降：隨甲醛濃度的提高，鍍這光增加而後下降。
分享友人