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oxidate vt.使氧化。

oxidation

Meanwhile , fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained . function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin , and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits , and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off , but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits , and improve the surface quality of the deposits and the bath stability 闡述了鍍液中各組分的作用:絡合劑能有效地改變銅、錫的電位,促使初期的置換反應順利進行;還原劑能加快化學反應速度,對反應動力學有積極的促進作用;抗氧化劑能有效地防止鍍液中sn ~ ( 2 + )的氧化;添加劑a能提高鍍液的穩定性,添加劑b對鍍層能有細化和光亮作用,擴大了鍍層光亮區的范圍;添加劑c作為平滑劑,不僅能增強鍍層表面的平整性,而且能提高鍍液的分散能力;表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題,提高了鍍層的表面質量和鍍液的穩定性。

Widely used in the industries of chemical , petrochemical , refining , dyestuff , pesticide , pharmaceutical , rare earth and fertilizers , etc . , this pump is an optimal choice to handle the corrosive medium in storage tank , like various non - oxidated acid ( hydrochloric acid , thin sulfuric acid , formic acid , acetic acid and butyric acid ) not containing solid particles , not easily crystallized , and temperature not over 100 本泵廣泛用于化工、石化、冶煉、染料、農藥、制藥、稀土、化肥等行業,在貯罐上輸送不含懸浮固體顆粒,不易結晶,溫度不高于100的各種非氧化性酸(鹽酸、稀硫酸、甲酸、醋酸、丁酸)等腐蝕介質的最理想設備。

Abstract : this paper describes a new preparation technique of calcium iodate . at the presence of hydrochloric acid , iodine is oxidated by sodium chlorate , and then reacts with calium hydroxide . a series of constrasted experiments are made on the conditions and different techniqures . relatively high productivity and purity at low cost . easy controllability and operation are the main features of this kind of technique 文摘:介紹了以單質碘為原料,在鹽酸存在下,經氯酸鈉氧化,再與氫氧化鈣進行中和反應制備碘酸鈣的方法,并做了最佳工藝條件和不同方法的對比實驗.本法具有收率較高、純度較高、生產成本較低及反應條件易控制、設備簡單、操作方便等特點

The fracture strengh at room temperature of 95 . 2 % desity materials is lower than rbsc but higher than mosi2 ; the fracture toughness at room temperature is higher than mosi2 and reach the level of rbsc . when oxidated at 900 c , the evaporation of moo3 , co , co2 destroyed the oxidation film ( sio2 ) , the composite lost the weight because of the evaporation of moo3 . when oxidated at 1300 c , densitive oxidation film coverd the surface which composed by sio2 and mo5si3 在900氧化時,因為moo _ 3 、 co 、 co _ 2的揮發對氧化膜的破壞作用,無法在材料表面形成致密的sio _ 2氧化層,在該溫度下復合材料表現為失重。在1300 ;氧化時,材料表面形成了致密的sio _ 2 、 mo _ 5si _ 3氧化層,復合材料先表現為失重,后表現為增重。

For example , when the gaas substrate is etched by h2so4 - h2o2 , h2o2 is adopted to oxidate the substrate first , then the substrate was etched by means of laser wet etching in h2so4 solvent . theoretical analysis and experimental results show that compared with the mixed - solvent - etching , more smooth etched surface can be obtained by this method ; and because the substrate is preprocessed , time of laser induced wet - chemical etching 理論分析和實驗結果都表明,次序選擇腐蝕法可以有效地提高腐蝕表面的均勻性;因先對基片進行化學腐蝕處理,大大縮短了激光化學腐蝕的時間;使溶劑先后分別作用于基片,可以提高激光化學腐蝕溶劑配比的精度容差,使激光化學腐蝕控制和分析更加簡單。

But the active silver substrate of sers used in the study of the cathode material cannot be used in positive electrodes . in the lithium ion battery the working voltage of positive electrode may reach and exceed 4 . 0v , however the silver will be oxidated at 3 . 6v ( vs li / li + ) , and in the first charge process , the nanometer silver can be dissolved into the electrolyte and no longer has sers active 但銀襯底卻不能應用于正極材料表面sei膜的研究當中,因為鋰離子電池中正極的工作電位可達4 . 0v以上,而銀在3 . 6v ( vsli / li + )附近就開始發生氧化反應,在第一次充電過程中,正極材料表面包覆的銀顆粒就會因電化學反應溶入電解液中,不再具有表面增強的效果。

Widely used in the industries of petrochemical , refining , dyestuff , printing , pesticide , pharmaceutical , rare earth and fertilizers , etc . , this pump is an indispensable optimal choice to handle the corrosive medium , like various non - oxidated acid ( hydrochloric acid , thin sulfuric acid , formic acid , acetic acid and butyric acid ) not containing solid particles , not easily crystallized , and temperature not over 100 本泵主要用于石化、冶煉、染料、印染、農藥、制藥、稀土、化肥等行業,輸送不含固體顆粒,不易結晶,溫度不高于100的各種非氧化性酸(鹽酸、稀硫酸、甲酸、醋酸、丁酸)等腐蝕介質必不可少的理想設備。

Gas chromatography - mass spectrometry ( gc - ms ) analyses showed that both potassium permanganate and chlorine could oxidate the organic matters with unsaturated functional groups into those with carboxyl , hydroxyl and aldehyde . and it was further revealed that after preoxidation by potassium permanganate , the sorts of organic matters were reduced remarkably , however , chlorination leaded to increase of the sorts of orgnic matters and brought some chloro - organics such as chlorobenzene , chlorophenol , and trichloro - ethane 通過色譜-質譜聯用( gc - ms )評價分析了高錳酸鉀和氯對有機物結構的改變,高錳酸鉀和氯均將原水中的一些不飽和性有機物氧化分解為一些含氧基團的有機物,如羧酸類、醇類和醛等有機物,但預氯化會在水中出現一些鹵代物,鹵代產物不僅出現在苯環上,而且出現在鏈烴上。

The oxidations of the joints of c / sic composites after vapor deposition at elevated temperature in air were studied . results showed the joints of composites have good oxidation resistance . after the joints were oxidated at 10001 , the strength of the joints can maintain the original value prior to the vapor deposition 對經氣相沉積的c sic復合材料連接在高溫空氣中的氧化行為進行研究,結果發現氣相沉積后復合材料連接有較好的抗氧化性能,在1000氧化后,試樣強度與氣相沉積前的原始強度相接近。

Chemical industry information not merely embodyed the ordinary chemistry information substance , chemistry manufacture technological process and representative installation introduction are still have , in case contacing legal institutions sulphuric acid ? nitric acid industry system law ( ammonia oxidate law ) , synthetic ammonia industry , chlorine and caustic soda are manufacture to electrolysis salt water , along with electrogilding , refine aluminium , iron - smelting and steel - smelting , cement and glass manufacture summarized account , the mineral oil is refined , hence , the chemical industry information education is contrastd against the ordinary chemistry information education , proper such representative means , be living , the means interpreted is in speech oridinarily wholly adoptd in the chemical industry information education , now most of tutors also is adopt the means interpreted in speech , cause that the chemical industry information education is insipid like this , student lack interest to chemical industry information study , but as a result of value the pair foundation , light practice , student may say the become a mere formality to chemical industry information study o since multi - med 化工知識不僅包含了一般化學知識的內容,還帶有化學生產工藝流程及典型設備的介紹,如接觸法制硫酸,硝酸的工業制法(氨氧化法) ,合成氨工業,電解食鹽水制造氯氣和燒堿,以及電鍍、煉鋁、煉鐵和煉鋼,水泥和玻璃的生產簡介,石油的煉制等,因此,化工知識教學與一般化學知識教學相比,應有其典型的方法。在過去,化工知識的教學一般都采用口頭講解的方法,現在大多數教師也是采用口頭講解的方法,這樣使得化工知識的教學乏味,學生對化工知識的學習缺乏興趣,又因重視雙基,輕實踐,學生對化工知識的學習可以說流于形式。由于多媒體的輔助教學的高效性、形象直觀性、新穎性和多樣性、人工模擬等特點,很適合化工知識的教學,應用多媒體教學化工知識可以解決目前存在的諸多問題,如:模型短缺、組織參觀活動困難、教育經費不足、學生不易觀察等。

The results showed that the oil sludge is a kind of viscous black mixture of about 40 % aluminum powder , 60 % rolling lubricant and its oxidate , and the aluminum soap in the surface of aluminum powder plays an important role in accelerating aggregation of aluminum powder , and the oxidation of rolling lubricant is not a negligent factor of producing oil sludge 結果表明,油泥主要由約40 %的鋁屑、 60 %的軋制油及其氧化物組成的粘稠狀黑色混合物;鋁屑表面脂肪酸鋁鹽在促使鋁屑聚集成油泥過程中起著重要作用,軋制油氧化也是生成油泥的一個不可忽視的因素;油泥的生成與軋制油的性能密切相關,軋制油的潤滑性能差、承載能力低、酸值高、抗氧化穩定性能低均可促使油泥的生成。

Amp equation is extended from the estimation of vapor pressure to of the oxygenated hydrocarbons to calculate such oxidates as 34 substances of alkanes , and 54 substances , including alcohols , ketones , ethers , etc . the contribution values are obtained by correlation 將amp方程估算蒸氣壓擴展到含氧化合物,對34種烷烴和醇、酮、醚類54種含氧化物進行了計算,回歸出基團貢獻參數。

The paper introduction reaction mechanism of panf are oxidated to panof . on oxidation , along with change of configuration attend by change of element compose . kinetics reaction is stair 摘要本文介紹了聚丙烯腈原絲( panf )在氧化為預氧絲( panof )過程中的反應機理,即在氧化過程中隨著結構的變化伴有元素組成的變化,動力學反應為一級反應。

Results indicated that hrp could effectively oxidate pcp in aqueous solution . factors , such as acidity , temperature , enzyme activity , and initial concentration of pcp and h 采用辣根過氧化物酶催化去除模擬廢水中的五氯酚,使其形成沉淀并探討了影響反應的因素如溶液酸度酶濃度五氯酚起始濃度過氧化氫起始濃度以及溫度等。

Efficacy : while possessing the efficacy of cleaning , anti - oxidating , moisturizing , it can also relieve yourself and make you feel sweet and happy by sending out natural fascinating smell after shower 功效:清潔、抗氧化、補水的同時,舒緩減壓,浴后散發清新自然幽香,令心情甜蜜愉悅。

Exchange non - clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard , vacuum switch etc 交流無間隙金屬氧化物避雷器,適用于變壓器、配電屏、開關柜、真空開關、輸電線路、電力計量箱、并聯補償電容器、旋轉電機等電壓保護。

The experiment results show that this new method to oxidate the combination of h2 and o2 is very easy in use and can improve the uniformity greatly 實驗結果表明,此方法簡單易行,能夠有效改善氫氧合成氧化的均勻度,并已用于微電子工藝研究和生產中。

Li order to reduce diesel oxidated gum and produce new standard diesel oil , nanyang wax fine chemical plant uses the solvent to extract catalysed diesel oil 摘要利用溶劑萃取法精制催化柴油以達到降低柴油氧化沉渣和生產新標準環保柴油的目的。

Efficacy : fresh , anti - oxidating , moisturizing and relieving ; emitting natural fragrance after shower as if you were back to the nature 功效:清潔、抗氧化、補水、舒緩疲勞,浴后散發馥郁自然幽香,讓人猶如回歸到自然享受王者般的享受。