氫氧基 的英文怎麼說
中文拼音 [qīngyǎngjī]
氫氧基
英文
hydroxyl
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氫 :
名詞[化學] (氣體元素) hydrogen (h)
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氧 :
名詞[化學] (氣體元素) oxygen (o)
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Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying
摘要以精製棉、氯乙酸、
氫氧化鈉和過
氧化
氫為原料,經過堿化、醚化、洗滌、乾燥,制得羧甲
基纖維素鈉。
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An one - pot process including direct condensation of ethyl isodehydracetate and hydrocitronellal, followed by decarboxylation, isomerization and isomer resolution, was developed for practical preparation of zr juvenile hormone analogue series with high content of effective component
以異脫
氫乙酸乙酯與甲
氧基香茅醛直接縮合為起點,將縮合、脫羧、異構化、 (順、反)異構體拆分等採用多步反應連續一鍋法的操作方法,成功地得到高有效含量的zr型保幼激素類似物。
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They may be mono, or triacylglycerols according to the number of ? oh groups esterified
根據
氫氧根離子酯化的數目為單,雙,三酰
基的酯。
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Ethyl cellulose was synthesized successfully in one - step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent
摘要採用纖維素與過量的氯乙烷及
氫氧化鈉反應,以甲苯為稀釋劑,用一步法成功地合成了乙
基纖維素。
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Based on rich lepidolite resources in jiangxi province, with the self developed unique process, we produce lithium carbonate and lithium hydroxide effectively and environmental friendly, which are mainly as feed stock for our down stream products
利用江西鋰雲母為原料,採用自主開發的低能耗殘渣可綜合利用無污染的獨特工藝生產工業碳酸鋰和
氫氧化鋰,主要為我公司特種無機鋰的生產供應
基礎原料。
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Glyceryl stearate se, dimethicone, stearic acid, batyl alcohol, carbomer, acrylates / c10 - 30 alkyl acrylate crosspolymer, xanthan gum, potassium hydroxide, camellia japonica seed oil, behenyl alcohol, hydrogenated palm oil, morigna pterygosperma seed oil, disodium edta, trifolium pratense ( clover ) flower extract, propylene glycol, phenoxyethanol, theanine, bis - behenyl / isostearyl / phytosteryl / dimer dilinoleyl dimer dilinolate, thermus thermophillus ferment, glycerin, sodium dehydroacetate, potassium sorbate
水溶液、丁二醇、鯨蠟辛酸、甘油、硬脂酸酸甘油酯、矽靈、硬脂酸、膠狀
基質、丙烯酸脂、黃原膠、
氫氧化鉀、山茶種子油、脂肪酸醇類、
氫化棕櫚油、辣木種子萃取物植物添加物、離子鉗合劑、紅三葉草萃取物、丙二醇、苯
氧基乙醇、單寧、植物甾醇、脫
氫醋酸鈉、山梨酸鉀。
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Methoxy 1 groups are split off with boiling hi and converted to.
甲
氧基用沸騰的碘
氫酸分解,使甲
氧基脫落並轉為甲
基碘。
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One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.
活性亞甲
基上的一個
氫原子是被環
氧基所取代的。
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Determination of trace cobalt by solid substrate room temperature phosphorescence quenching method on hydrogen peroxide oxidizing pyrogallol red
催化過
氧化
氫氧化鄰苯三酚紅固體
基質室溫?光猝滅法測定痕量鈷
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The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement
本文設計了燒結ndfeb的
氫爆制粉設備,對設備調試以及使用過程中出現的主要問題進行了簡要的說明,提出了一系列解決方法;闡述了吸
氫、脫
氫的
基本原理;研究了
氫氣壓力、通
氫時間、
氫爆溫度等
基本工藝參數對磁性能的影響;利用金相顯微鏡和掃描電子顯微鏡, x射線衍射分析,紅外線測
氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。
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Tree ring is a kind of natural archives, on which the isotopic analysis is important to study global climate and environmental change. the authors mainly provide a comprehensive introduction to the fractionation models of carbon, hydrogen and oxygen isotope in plants, their research techniques and the extract methods from cellulose. that results show isotopic tracer can record the message of climatic variation and has become a powerful tool for paleoclimate reconstruction and for the modern environment changing research. especially studying on pages, the cellulose isotopic analyses of imbedded old tree ring have become the mainly quantitative means of environmental evolvement. in addition, china is a typical monsoon country, research in tree ring stable isotope seasonal variation can give us a lot of important information on that. up to now, the research techniques and works on tree ring in our country are still in its earlier stage, and remain many limitations. it needs further accumulate basic research materials, intensify regional contrast and intercross studies on relative subjects
尤其是在過去全球變化pages研究中,埋藏古木纖維素中的碳
氫氧同位素分析已成為環境演化研究的主要量化手段。另外,對于中國這樣典型的季風氣候國家,開展樹輪穩定同位素隨季節性變化的研究具有重要的意義。我國在樹輪研究方面起步較晚,研究方法和研究內容上也比較簡單,還存在不小差距,既要進一步積累
基礎資料,又要做區域對比,加強與相關學科的交叉研究。
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Unsaturated alkynyl alcohols, such as dehydronerolidol, dehydrogeranyllinalool, and dehydroisophytol, were prepared by ethynylation of turpentine derivatives, namely terpenylacetones, e. g. geranylacetone, farnesylacetone, and phyton under normal pressure in presence of alkali metal hydroxide and organic solvents
摘要松節油衍生物格萜烯
基丙酮,如香葉
基丙酮、金合歡
基丙酮和植物酮在常壓條件,堿金屬
氫氧化物和有機溶劑存在下可發生乙炔化反應,形成對應的, -不飽和炔醇化合物脫
氫橙花叔醇、脫
氫香葉
基芳樟醇和脫
氫異植物醇。
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Sillicate rocks. determination of nickel and cobalt content. ammonium hydroxide - ammonium chloride - sulfosalicylic acid - dimethyl glyoxime medium polarographic method
硅酸鹽巖石化學分析方法
氫氧化銨-氯化銨-磺
基水楊酸-丁二肪底液極譜法同時測定鎳量和鈷量
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Methods for chemical analysis of tungsten ores and molybdenum ores. determination of cobalt content. polarographic method in dimethylglyoxime - sulfosalicylic acid - ammonium hydroxide - ammonium chloride system
鎢礦石鉬礦石化學分析方法丁二肟-磺
基水楊酸-
氫氧化銨-氯化銨底液極譜法測定鈷量
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Methods for chemical analysis of tungsten ores and molybdenum ores. determination of nickel content. polarographic method in dimethylg - lyoxime - sulfosalicylic acid - ammonium hydroxide - ammonium chloride system
鎢礦石鉬礦石化學分析方法丁二肪-磺
基水楊酸-
氫氧化銨-
氧化銨底液極譜法測定鎳量
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Making use of statistical principle, the different ti substrates were dealt with in different temperatures ( 60 ~ 100 ) by different concentrations ( 5m ~ 10 m ) naoh solutions so that we can confirm the most appropriate technique
具體為運用統計學原理,在不同溫度下( 60 100 )用不同濃度( 5m 10m )的
氫氧化鈉溶液處理不同的鈦合金
基體,以確定最佳的生物活化處理條件。
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The preparation conditions of composite were optimized, including the initiator concentration ( naoh ) and the molar ratio of aldehyde to amine
結果表明,聚甲亞胺的醛端
基與引發劑
氫氧化鈉發生了cannizarro反應,從而對復合材料的制備產生阻聚影響。
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Usually used in operation in hospital, skin and instrument antisepsis in injection, sterilization, prevent communicate in surgery and dermatology department ; antisepsis for family tableware and implement ; antisepsisand animal illness prevention and cure for food industry and livestock breeding industry and so on
又因為分子具有酰胺鍵及吸附多酚分子上的
氫氧基從而形成
氫鍵,因此,可用作啤酒果酒飲料酒的穩定劑,延長其保質期達三百天,並改善其透明度色澤和味道。
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The only vitamin to contain all the common minerals, vitamin b12 comes in many forms, such as b12a, b12b, and b12c. it usually consists of a cobalt molecule bound to a cn group and an oh or no2 group
它有很多種型式,如b12a b12b b12c等,最常見的化學鍵是在鈷分子上接氰根- ch ,另外還有
氫氧基- oh或硝
基- no2等結合型式。
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1. sterilize and remove smell, eliminate fatigue. negative ion also be named as hydroxyl ion, it reacts with germ, mildew etc in air, change their molecular structure, with the help of ultraviolet radiation, it could sterilize and remove smell
1 .殺菌除味消除疲勞:負離子又稱氫氧基離子oh - ,它與空氣中的病菌,黴菌等物質發生反應,改變它們的分子結構,輔以紫外光波,可以殺滅病菌,去除異味。