試劑苯 的英文怎麼說
中文拼音 [shìjìběn]
試劑苯
英文
reagent benzene-
Synthesis and spectral properties of azo - pyrogallol reagents
偶氮連苯三酚試劑的合成及其光譜特性These cocktails are either made from reagents or purchased in concentrated form and diluted with toluene.
這些混合液或是由試劑配製的或是買來的用甲苯稀釋的濃縮劑。Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride
常州濤峰化工有限公司座落在江蘇國際塑化城，是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口，主要經營產品：甲苯、純苯、二甲苯、辛醇、乙酸乙脂、乙酸丁脂、硅油、二苯胺、雙聚丁二酰亞胺、苯三唑衍生物、異丙醇胺、乙醇胺、烷基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛基鋅鹽、氯橋酸、氯橋酸酐、氯苯、雙聚環戊二烯、降冰片烯二酸酐等。Chemical reagent. o - phthalic anhydride
化學試劑.鄰苯二甲酸酐Borohydride which supported by strongly basic ion exchange resin reduced phseseph giving polymer - supported phenylselenide anion. it reacted with, - unsaturated aldehyde or epoxide to produce corresponding selenide. respective conditions were studied also
強堿型離子交換樹脂支載的四氫化硼與二苯聯硒反應，得到載體化的苯硒陰離子試劑，它與， -不飽和醛及環氧化物反應，生成相應的硒醚.對各自的反應條件也進行了探討Standard test methods for aniline point and mixed aniline point of petroleum products and hydrocarbon solvents
石油產品和烴類溶劑苯胺點和混合苯胺點的標準試驗方法Methods of test for petroleum and its products - petroleum products and hydrocarbon solvents - determination of aniline point and mixed aniline point
石油及其產品的試驗方法.石油產品和烴類溶劑.苯胺點和混合苯胺點的測定Testing of glass ; determination of the solubility of the binder of glass fibre mats in styrene
玻璃的試驗.苯乙烯中玻璃絲墊粘合劑的溶解性的測定Ph basic line - potassium hydrogen phthalate
Ph基準試劑苯二甲酸氫鉀Chcmical regent - benzene
化學試劑苯Carboxyanilineazo salt and 2 - hydroxyanilineazo salt were synthesized, and new azo reagent 4 - ( 2 - carboxyanilineazo ) - pyrogallol and 4 - ( 2 - hydroxyanilineazo ) - pyrogallol were synthesized through coupled reaction of 2 - carboxyanilineazo salt and 2 - hydroxyanilineazo salt with pyrogallol
摘要合成了2 -羥基苯胺重氮鹽和2 -羥基苯胺重氮鹽，它們與連苯三酚偶聯，得到新的偶氮試劑4 - （ 2 -羥基苯偶氮） -連苯三酚和4 - （ 2 -羥基苯偶氮） -連苯三酚。More and more analytical chemists tried to combine the tpp with other functional molecules to obtain the analytical reagents with high sensitivity
把取代四苯基卟啉與其它官能團分子相連以獲得對某些物質具有更高靈敏度的檢測試劑越來越引起分析科學家的興趣。Pcl ii had two mutations in nueleotide sequences and amino acid sequence compared with that of natural pcl ii. the effect of chemical modification of amino acid residues upon haemagglutination and mitogenic activity toward t - lymphocytes was investigated. modification of tyrosine ( 1 - acetylimidazole and 4 - nitrobenzenesulphonyl fluoride ) did not alter haemagglutination but decreased mitogenic activity by about one half
採用不同的方法對酪氨酸（ tyr ）進行了修飾:用勺r酚經基專一性試劑對硝基苯磺酞氟（ nbsf ）修飾pcln ，導致pcln促淋巴細胞有絲分裂活性大幅下降，表明巧r的酚經基對於此活性是必需的。Abstract : study is made of recovery of organic reagents during the preparation of ultrafine powder by metal alcoxides hydrolysis. the phase diagrams of isopropanol - benzene system and isopropanol - benzene - water system have been plotted, based on which, isopropanol and benzene can be recovered and recirculated by distillation - rectification process. the recovery and reused rate of alcohol and benzene are above 75 %. so both the environmental pollution and cost of ultrfine powder are reduced
文摘:對醇鹽水解法制備超細粉末過程中有機試劑的回收進行了研究，繪制了異丙醇-苯的二元相圖和異丙醇-苯-水的三元相圖，在此基礎上採用蒸餾-精餾的方法對制備體系中的異丙醇和苯進行回收，將有機試劑循環使用，使醇和苯的回收利用率達75 %以上，因而減少了環境污染，並降低了粉末成本。Chemical reagent - potassium hydrogen phthalate
化學試劑鄰苯二甲酸氫鉀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。More and more analytical chemists tried to combine the 5, 10, 15, 20 - tetraphenylporphyrin ( tpp ) with other functional molecules to obtain the analytical reagents with high sensitivity
把取代四苯基卟啉與其它官能團分子相連以獲得對某些物質具有更高靈敏度的檢測試劑越來越引起分析科學家的興趣。The traditional synthetic method of 2, 5 - dithiol - benzene - 1, 4 - diamine dihydrochloride ( dtbda ) is characterized by a louger time of reaction, heigher consumption on chemicals and lower yield. but by changing the solvent for synthesis, the reaction time is shortened and the consumption on chemicals is lowered
通過改變合成的溶劑對已報道的合成二巰基苯二胺二鹽酸鹽方法進行改進，克服了需經很長周期、耗用大量的反應試劑和重結晶溶劑、產率較低的缺點.改進的方法縮短了產物制備時間，減少了原料的成本消耗，效果明顯Treatment of dpa wastewater by fenton reagent
試劑氧化處理二苯胺廢水Standard test method forp - phenylenediamine antidegradants purity by gas chromatography
用氣相色譜法測試p -苯二胺抗降解劑純度的標準試驗方法分享友人