potassium metal 中文意思是什麼

It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish

它可以直接使大片森林死亡，農作物枯萎；也會抑制土壤中有機物的分解和氮的固定，淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素，使土壤貧瘠化；還可使湖泊、河流酸化，並溶解土壤和水體底泥中的重金屬進入水中，毒害魚類；加速建築物和文物古跡的腐蝕和風化過程；可能危及人體健康。

A - type crystal structure potassium. it is a kind of aluminosilicate of alkali metal

3a型分子篩是指a型晶體結構鉀型，是一種堿金屬的硅鋁酸鹽。

Study of 10 metal oxides on the thermal decomposition of potassium chlorate to yield oxygen

10種金屬氧化物對氯酸鉀熱分解制氧催化效果的研究

The paper developed a novel method of preparation of potassium ferrate by hypochlorite oxidation, and determined the optimal parameters. the experimental results demonstrate that fe ( vi ) compounds with high purity and yield can be prepared by raw technical materials. a variety of fe ( vi ) cathode materials, synthesized by potassium ferrate and alkaline - earth metal salts, provide a high - energy electrochemical discharge

採用改進的次氯酸鹽氧化法（濕法） ，以工業級的原料，在實驗室內，從1到4倍率規模合成高純度、高收率的fe （ ）化合物起始物? ?高鐵酸鉀，純度可達98 、收率在80以上；再以高鐵酸鉀為原料合成堿土金屬fe （ ）化合物或其他fe （ ）復合物，其中堿土金屬fe （ ）化合物純度可達94以上。

The authour investigate the dosing conditions and effect of the pac to the huanghe water - source, which includes the following four parts : the selection of the pac ; the confirmation of dosing scheme and effect of the pac ; the research of application of potassium permanganate in combination with pac ; the research of the pac ' s modification and the modified effectiveness. the experiment is mainly carried out on the pilot system in the jieyuan water plan of tianjin. the results of the reseach include the following : l ) the pac from zunhua plant is selected as the better carbon for the source water of tianjin through the experiment ; 2 ) through the pilot experiment we conclude that the pac ' s best adding point is the mixing tank and the better dose is 10mg / l, on which the codmn of filtered water can be decreased to 40 % and the effluent have no problem of odour and color ; 3the adsorbing experiment show that pac mainly adsorb the organic matters which molecular wt., distribution between 500 and 3000, and can adsorb organic matters whose molecular wt., distribution are bigger than 6000 if the dose of it is adequent ; 4 ) pac together with potassium permanganate can remove the organic matter more effectively than each of them alone, and reduce the rising trend of turbidity of the flotation ' s effluent due to adding pac ; 5 ) the thesis made a research on the surface properties and the adsorbing capability of the modified carbon by oxidizer : the modified carbon with 20 % h2o2 can remove more organic pollutants than the untreated one by 12 % when we add a higher dose of coagulant ; 6 ) the modification of reduction and loading metal ions are also sttldied, and drow the following conclusions : the modified carbon with 5 % ammonia can enhance the organic matter ' s removal effectiveness by 10 % to the tianjin source water than the untreated one, and the modified one with loading metal ion remove the organic matters from the tianjin source water better ( 8 % ) than the untreated one due to the strong affinity betwween the humic acid and copper ion

本文的實驗主要是在天津芥園水廠的中試系統上完成的，論文的成果和結論主要包括： 1 ）通過靜態實驗選定河北遵化活性炭廠生產的煤質炭為適合天津原水的炭種； 2 ）中試實驗確定粉末活性炭的較佳投加點為混合池投加，較佳投加量為10mg l ，此時可使濾后水的cod _ （ mn ）降低40 ，且可較好地控制濾后水的嗅味和色度； 3 ）初步確定粉末活性炭對原水中有機物的吸附主要集中在分子量在500 - 3000范圍內，投量增大時可吸附部分分子量大於6000的有機物4 ）中試實驗表明：粉末活性炭與高錳酸鉀聯用可取得較兩者單獨應用時對有機物更好的去除效果，且對因投加粉末活性炭而造成的氣浮出水濁度升高有一定的改善作用； 5 ）研究並初步確定氧化改性對粉末活性炭表面性質和有機物的去除效果的影響：粉末活性炭的氧化改性會使其表面的酸性官能團大量增強，表面極性增加；經20的過氧化氫改性的活性炭在增大混凝劑投加量（ fecl _ 3投量為15mg l ）時對有機物的總體去除效果較原活性炭提高12 ， 1次氯酸鈉改性活性炭對有機物的去除效果較原活性炭提高6 ； 6 ）研究並初步確定還原改性、負載金屬離子對原水中有機物的去除效果的影響：經5氨水改性的活性炭可提高天津源水中有機物的去除率達到10 ；負載銅離子后的活性炭可提高對腐殖酸類物質的去除能力，一般可提高8左右。

This technology uses alkali metal ( such as lithium, potassium and sodium ) as the working fluid, base ( " - a1 _ ( 2 ) o _ ( 3 ) solid electrolyte ) as the medium. this technology is based on the unique properties of base that is an excellent ionic conductor but a poor electron conductor

Amtec利用堿金屬（鋰、鉀、鈉）作為工作物質， base （ - al _ 2o _ 3solidelectrolyte ）作為介質，這種陶瓷材料對離子是良導體，對電子幾乎是絕緣體，這一點也是這種能量轉換技術的基礎。

Inhibition effect of potassium iodide on metal in hydrochloric acid solution

鹽酸溶液中碘化鉀對金屬的緩蝕效應

Dr. chou had found that the reactions of ultrasonically dispersed potassium, generated from metal potassium by ultrasound irradiation, with some functionalized cyclic sulfones to be highly chemoselective

-烯相連接之雜環化合物，將之做為鄰雙亞甲基之芳香雜環前驅物，並探討其在有機合成上的應用價值。

Methods for the sampling and analysis of tin and tin alloys - method for the determination of antimony in solders and white metal bearing alloys volumetric : potassium bromate method

錫及錫合金取樣及分析方法.第13部分:焊料及軸承用巴比合金中銻含量測定方法

As for materials for faradaic pseudocapacitor, we mainly studied metal oxide. the paper prepared ferric oxide by sol - gel method, decomposition product of potassium permanganate and cobalt oxide by pyrogenation way, nano - nickel oxide by sol - gel and pyrogenation method and manganese oxide by different ways

本文用溶膠?凝膠法制行備三氧化二鐵；熱分解法制備了高錳酸鉀分解產物和氧化鈷；分別用溶膠?凝膠法和熱分解法制備了納米氧化鎳；還用不同的方法制備了二氧化錳。

Methods for chemical analysis of manganese metal - the titanium trichloride - potassium volumetric method for the determination of iron content

金屬錳化學分析方法三氯化鈦-重鉻酸鉀容量法測定鐵量