小学语文写作指导-让100%学生爱上写作_通用版

氟润滑脂内容来源自网络埃科润滑脂EccoGreaseHP100氟脂是由高度化学稳定性的合成油为基础油，聚四氟乙烯［ＰＴＦＥ］为稠化剂经特殊工艺调制而成，专为用在苛刻条件下作业的轴承、齿轮、链条以及滑动机械装置的润滑而开发的宽温、氟素润滑埃科润滑脂EccoGreaseHP100氟脂是由高度化学稳定性的合成油为基础油，聚四氟乙烯［ＰＴＦＥ］为稠化剂经特殊工艺调制而成，专为用在苛刻条件下作业的轴承、齿轮、链条以及滑动机械装置的润滑而开发的宽温、氟素润滑脂。

使用温度范围：-30℃--230℃。

性能特点※优良的粘附性、润滑性，降噪效果好；※良好的触变性和低蒸发损失、扩散性和挥发性；※良好的热稳定性和胶体安定性，与多种塑胶和弹胶体相容；※优异的抗腐蚀性和耐油、耐溶剂及多种化学品性能。

推荐应用※适用于精密仪器、仪表、特种机械设备和使用条件十分苛刻的运动部位之润滑；※广泛用于各种阀件、旋塞、轴承的润滑和密封，特别适用于有强烈腐蚀和化学品介质中的阀件和密封件的使用。

采购前阀门选型的步骤和依据：在流体管道系统中，阀门是控制元件，其主要作用是隔离设备和管道系统、调节流量、防止回流、调节和排泄压力。

由于管道系统选择最适合的阀门显得非常重要，所以，了解阀门的特性及选择阀门的步骤和依据也变得至关重要起来。

阀门行业到目前为止，已能生产种类齐全的闸阀、截止阀、节流阀、旋塞阀、球阀、电动阀、隔膜阀、止回阀、安全阀、减压阀、蒸汽疏水阀和紧急切断阀等12大类、3000多个型号、4000多个规格的阀门产品；最高工作压力为600MPa，最大公称通径达5350mm，最高工作温度为1200℃，最低工作温度为-196℃，适用介质为水、蒸汽、油品、天然气、强腐蚀性介质（如浓硝酸、中浓度硫酸等）、易燃介质（如笨、乙烯等）、有毒介质（如硫化氢）、易爆介质及带放射性介质（金属钠、-回路纯水等）。

阀门承压件材质铸铜、铸铁、球墨铸铁、高硅铸铁、铸钢、锻钢、高、低合金钢、不锈耐酸钢、哈氏合金、因科镍尔、蒙乃尔合金、双相不锈钢、钛合金等。

hfe-7000化学式HFE-7000是一种化学品，其化学式为C4F9OCH3。

HFE-7000是一种氟化物有机化合物，具有许多特殊的性质和应用。

HFE-7000具有优异的热稳定性。

它可以在宽广的温度范围内保持其化学性质的稳定性，这使得它在高温环境下具有广泛的应用前景。

此外，HFE-7000还具有低毒性和低挥发性，这使得它成为一种理想的替代有机溶剂。

HFE-7000的化学式中含有氟原子，使得它具有很高的化学稳定性。

氟原子与碳原子之间的键能够抵抗许多化学反应的侵蚀，从而延长了HFE-7000的使用寿命。

此外，HFE-7000还具有良好的电绝缘性能和低表面张力，使得它在电子元件和液体冷却系统中广泛应用。

HFE-7000还具有优异的溶解性能。

它可以溶解许多有机物质，如聚合物和树脂。

这使得HFE-7000成为一种重要的溶剂，在化学工业中具有广泛的应用。

此外，HFE-7000还可以作为传热介质和润滑剂使用，提高设备的效率和性能。

除了以上的特点，HFE-7000还具有低粘度和高比热容的特性。

这使得它在热传导和热稳定性方面具有优势，可以应用于散热系统和热管理领域。

此外，HFE-7000还具有低毒性和环境友好性，对人体和环境无害，符合可持续发展的原则。

总结起来，HFE-7000是一种具有优异性能和广泛应用前景的化学品。

它的化学式为C4F9OCH3，具有热稳定性、低毒性、低挥发性、良好的电绝缘性能和溶解性能，以及低粘度和高比热容特性。

这些特点使得HFE-7000在电子元件、化学工业、热管理和散热系统等领域得到广泛应用。

同时，HFE-7000还具有环境友好性和可持续发展的特点，符合现代社会对化学品的要求。

希望在未来的发展中，HFE-7000能够得到更广泛的应用和研究。

AMPLIFi放大器，驾驶室和效果的完整名单AMPS清洁：无放大器- 这种模式有没有前置放大器或功放模式。

管仪前置放大器- 这种模式被创造是用于插入来自吉他的压电拾音器或低音输出的解决方案。

它也可以提供一些可口的色调，配有一个标准的电吉他。

随着音12点钟控制，情商是“平”。

6号线 2 Piezacoustic - 这一个是设计有那些新奇的桥梁建于'声'皮卡之一solidbody电气的压电输出工作，因为你不必担心身体摇晃自己用碎片。

该类型的吉他反馈，我们已经熟了这个模型，更多的低中频和低频。

6号线的Variax声- 一个从线6的Variax数码模拟吉他的强大功能是电声乐器的他们的模型。

这些声音都通过全方位监视器或PA最好理解的，由于它们的高频率成分。

这款音箱型号是为了让的Variax的声学模型，通过典型的吉他功放音箱的声音作为全方位地创建。

这可以在方便的时候你正在使用从的Variax声学模型，并通过吉他音箱的扬声器听它来了。

请记住，因为这种模式提供了大量的高频提升（以弥补自然滚降典型的吉他音箱）和超速模型弹木吉他通常不是一个理想的东西，这种模式将有可能出现较软比大多数同胞。

如果你需要更大的增益，驱动器旋钮，可以用来添加一些前置放大管。

1987爵士清洁- 基于*一个Roland®JC-120，认识了刺耳的干净的声音和内置的立体声合唱晶体管放大器。

6号线21世纪清洁- 要创建这款音箱型号，我们基本上是嫁接JC120（罗兰流行的“爵士合唱”固态组合）的前置放大器和音栈到经典Marshall®JTM-45管头的功放和变压器，从而使你的清晰和明确的前端典型的固态放大器，但有丰富的，满足胆机风格咬你把它上升。

6号线超洁- 忘了你知道如何清洁或有多亮吉他放大器可以去什么。

6号线超净越走越远，增添了不少的亮度。

虽然这种模式肯定是干净的，它有两个其他有趣的招数了它的袖子以及：设置驱动器旋钮在最大给人一种真正打破“小放10将死”的声音。

C ost-effective, rugged handheld instruments designed for reliable performance E asy-to-use interface for error-free testing I nterchangeable connectors, for fi rst-class fl exibilityP articularly suited to the testing and troubleshooting of LAN/WAN fi ber-optic networksIntroducing EXFO’s FiberBasix testers, a series of handheld instruments designed to meet your basic day-to-day test requirements, while helping you stay within budget. These worry-free, straightforward solutions provide the tools you need to accurately measure signal attenuation during fi ber-optic cable installation.The FiberBasix 100 Series includes two highly convenient instruments: T he ELS-100 Light Source , combines four wavelengths for singlemode and multimode testingT he EPM-100 Power Meter , which offers high accuracy and referencing capabilities2011GLOBAL PORTABLE FIBER OPTIC TEST EQUIPMENT MARKET SHARE LEADERSHIP AWARDELS-100/EPM-100 FiberBasix 100 TestersELS-100 Light Source: Multiwavelength CapabilityEXF O’s ELS-100 Light Source provides excellent stability and high measurement accuracy. Its confi guration includes two singlemode wavelengths (1310 and 1550 nm) and two multimode wavelengths (850 and 1300 nm) for maximum versatility. F or testing all fi ber types. It is the perfect complement to the FiberBasix EPM-100 Power Meter when it comes to measuring attenuation on fi ber-optic links.EPM-100 Power Meter:High Accuracy and Easy ReferencingThe EPM-100 Power Meter provides highly accurate power measurements, as well as reference value setting capabilities. What’s more, this convenient unit requires no offset nulling, and it offers power autonomy of 300 hours, for reliable, long-lasting performance in the field.The EPM-100 Power MeterThe ELS-100 Light SourceELS-100/EPM-100FiberBasix 100 TestersGENERAL SPECIFICATIONSSize (H x W x D) 185 mm x 100 mm x 55 mm (71/4 in x 4 in x 21/8 in)Weight 0.4 kg(0.9 lb)Temperatureoperating –10 °C to 50 °C (14 °F to 122 °F) storage –40 °C to 70 °C(–40 °F to 158 °F)Relative humidity0 % to 95 % non-condensingSTANdARd ACCESSORIESUser guide, Certificate of Calibration, instrument stickers in four languages,AC adapter, EUI-XX (ELS), connector adapter (FOA-XX) (EPM), three AA batteries, wrist strap.SAFETy21 CFR 1040.10 and IEC 60825-1:1993+A1:1997+A2:2001:ELS-500: CLASS 1 LASER PRODUCTELS-100 SPECIFICATIONS a Model b23BL12DCentral wavelength (nm) 1310 ± 20 850 ± 251550 ± 20 1300 +50/—10Spectral width c (nm) ≤ 5 50/135Output power (dBm) ≥ 1/≥ 1 ≥ –20/≥ –20 (62.5/125 µm)Power stability d (dB)8 hours ± 0.10 ± 0.10Battery life (hours) (typical) 50 55Warranty and recommended calibration interval (years)11EPM-100 SPECIFICATIONS a Model eEPM-102Power meter port GePower range f (dBm) 10 to –60Range displayed (dBm)Down to –65Number of calibrated wavelengths g 6Power uncertainty h ±5 % ± 1 nW Resolution (dB)0.01 i Automatic offset nulling Yes Warm-up time f (s) 0Display unitsdB/dBm/W Screen refresh rate (Hz) 3Battery life (hours) (typical) > 300 Warranty and recommended calibration interval (years)1Notesa. Guaranteed unless otherwise specified.b. All specifications valid at 23 °C ± 1 °C, with an FC connector.c.rms for lasers and FWHM for LEDs; typical values for LEDs.d. A fter 15 minutes warm-up; expressed as ± half the difference between the maximum and minimum values measured during the period, with an APC connector on the power meter.e. A ll specifications valid at 1550 nm and 23 °C ± 1 °C, with an FC connector.f. In CW mode, sensitivity defined as 6x rms noise level.g. W avelengths: 850 nmm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and 1625 nm.h.Traceable to national standards.i. From 10 dBm to –50 dBm.ELS-100/EPM-100FiberBasix 100 Testers ORDERING INFORMATIONModelELS-100-12D-23BL = 850/1300 nm LED (62.5/125 mm), 1310/1550 nm laser (9/125 mm) Example: ELS-100-12D-23BL-EI-EUI-89Connector aEI-EUI-89 = UPC/FC narrow key b EI-EUI-90 = UPC/ST bEI-EUI-91 = UPC/SC bEI-EUI-95 = UPC/E-2000 bELS-100-XX-XXModelEPM-102 = Ge detector Example: EPM-102-FOA-22Connector Adapter aFOA-22 = FC (PC/SPC/UPC/APC), NEC-D3 FOA-32 = ST (PC/SPC/UPC)FOA-54 = SCFOA-96B = E-2000FOA-98 = LCEPM-10X-XXNotesa. Other connectors and connector adapters available.Consult our website at /accessories for details.b. Interchangeable connection.TEST KIT ORdERING INFORMATION FBK-103-XX Contractor Test Kit- EPM-102-XX Power Meter, Ge detector- ELS-100-12D-23BL-XX Light Source, 850/1300 nm LED and 1310/1550 nm laser (2 ports)- One TJ-BXX-XX test jumper- One TJ-DXX-XX test jumper- Carrying case GP-10-061EXFO Corporate Headquarters > 400 Godin Avenue, Quebec City (Quebec) G1M 2K2 CANADA | Tel.: +1 418 683-0211 | Fax: +1 418 683-2170 |*************Toll-free: +1 800 663-3936 (USA and Canada) | EXFO America3701 Plano Parkway, Suite 160 Plano, TX 75075 USA Tel.: +1 800 663-3936 Fax: +1 972 836-0164EXFO Asia100 Beach Road, #22-01/03 Shaw Tower SINGAPORE 189702 Tel.: +65 6333 8241 Fax: +65 6333 8242EXFO China36 North, 3rd Ring Road East, Dongcheng District Beijing 100013 P. R. CHINA Tel.: + 86 10 5825 7755 Fax: +86 10 5825 7722 Room 1207, Tower C, Global Trade CenterEXFO Europe Omega Enterprise Park, Electron Way Chandlers Ford, Hampshire S053 4SE ENGLAND Tel.: +44 2380 246810 Fax: +44 2380 246801EXFO NetHawk Elektroniikkatie 2 FI-90590 Oulu, FINLAND Tel.: +358 (0)403 010 300 Fax: +358 (0)8 564 5203EXFO Service Assurance 270 Billerica Road Chelmsford, MA 01824 USA Tel.: +1 978 367-5600 Fax: +1 978 367-5700EXFO is certified ISO 9001 and attests to the quality of these products. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. EXFO has made every effort to ensure that the information contained in this specification sheet is accurate. However, we accept no responsibility for any errors or omissions, and we reserve the right to modify design, characteristics and products at any time without obligation. Units of measurement in this document conform to SI standards and practices. In addition, all of EXFO’s manufactured products are compliant with the European Union’s WEEE directive. For more information, please visit /recycle. Contact EXFO for prices and availability or to obtain the phone number of your local EXFO distributor.For the most recent version of this spec sheet, please go to the EXFO website at /specsIn case of discrepancy, the Web version takes precedence over any printed literature.SPELS/EPM-100.5AN © 2011 EXFO Electro-Optical Engineering Inc. All rights reserved. Printed in Canada 11/04。

DKK-TOA氟離子分析儀MODEL FBM-100A 中文操作手冊幸瑋企業有限公司HSING-WUEI ENTERPRISE CO., LTD.一、主要部分名稱與操作說明操作鍵功能說明測定、維修模式切換鍵●長按4秒以上作測定以及維修模式之切換。

於維修模式時“ST –BY”標示出現。

●於清洗模式(副顯示”WASH”閃爍)下按一秒以上，可終止清洗模式並回到維修模式校正鍵●在測定模式下按此鍵可看校正液濃度設定值，再按一次即可回到測定初始畫面。

●在維修模式初始畫面下按此鍵4秒以上，可出現標準液校正的輔助清單。

●在維修模式初始畫面下按此鍵，可執行校正功能。

輸入鍵●在維修模式與傳送調整模式下按此鍵可切換畫面。

●當確認數字或符號時按此鍵輸入並切換到下一個畫面。

顯示鍵●於測定功能時按此鍵可切換測值、mV、溫度等畫面。

●在維修模式下按4秒以上可進入設定濃度、溫度設定值等表單畫面。

警報鍵●於測定畫面下按警報鍵可切換警報系列的表單，當重複按下時，最後會停止在測定值畫面下。

●於維修畫面下按警報鍵4秒以上可設定警報系列的表單。

輸出鍵●於測定畫面下按輸出鍵可切換輸出系列的表單，當重複按下時，最後會停止在測定值畫面下。

●於測定畫面下按輸出鍵4秒以上會進入傳輸調整模式，再按4秒以上會回到測定模式。

●於維修畫面下按輸出鍵4秒會進入設定測定範圍系列表單。

清洗鍵●於測定畫面下按清洗鍵可切換清洗功能的表單，當重複按下時，最後會停止在測定值畫面下。

●於維修畫面下按清洗鍵4秒以上可設定清洗功能的表單。

●當電極與清洗功能結合時(選配)，需要給予設定。

上鍵●於設定模式或傳輸設定模式下按此鍵可增加數字或更改選擇的項目。

●當在標準液校正模式下按此鍵可切換氟離子濃度、mV與溫度顯示。

●於測定模式的校正紀錄資料顯示下按此鍵可切換觀看校正紀錄。

下鍵●於設定模式或傳輸設定模式下按此鍵可減少數字或更改選擇的項目。

●當在標準液校正模式下按此鍵可切換氟離子濃度、mV與溫度顯示。

Synthesis and catalytic properties of MIL-100(Fe),an iron(III )carboxylate with large pores {Patricia Horcajada,a Suzy Surble ´,a Christian Serre,*a Do-Young Hong,b You-Kyong Seo,b Jong-San Chang,b Jean-Marc Grene `che,c Irene Margiolaki d and Ge ´rard Fe ´rey aReceived (in Cambridge,UK)21st March 2007,Accepted 1st May 2007First published as an Advance Article on the web 15th May 2007DOI:10.1039/b704325bThe large-pore iron(III )carboxylate MIL-100(Fe)with a zeotype architecture has been isolated under hydrothermal conditions,its structure solved from synchrotron X-ray powder diffraction data,while Friedel–Crafts benzylation catalytic tests indicate a high activity and selectivity for MIL-100(Fe).The recent interest in the synthesis of hybrid inorganic–organic solids gives a new dimension to the domain of porous compounds.1–4They offer significant new scientific and technolo-gical opportunities 5by combining attractive features of both inorganic and organic moieties and lead to many potential applications in gas storage,6,7catalysis,8,9insertion,10,11magnet-ism,12,13optical devices,14etc .Most of them are prepared using functionalized organic ligand (phosphonates,carboxylates,sulfo-nates...)and many elements in the Periodic Table have been incorporated in these new framework materials exhibiting novel structures not seen in zeolite chemistry.The introduction of 3d transition metals within the skeleton provides new electronic properties.Among them,iron is an environmentally benign and cheap component with non-toxicity and redox properties.However,to the best of our knowledge,while some MOF materials have been reported to date with iron(II )or iron(III ),15–20only two of them combine a permanent porosity and large pores.21,22We report here the successful synthesis and structure determination of MIL-100(Fe)(MIL:Materials of Institut Lavoisier),a new scarce example of an iron(III )carboxylate with a large accessible and permanent porosity.This solid was isolated as a polycrystalline powder from a reaction mixture of composition 1.0Fe 0:0.661,3,5-BTC :2.0HF :1.2HNO 3:280H 2O (1,3,5-BTC =benzene tricarboxylic or trimesic acid)that was held at 150u C in a Teflon-lined autoclave for 6days with a initial heating ramp of 12h and a final cooling ramp of 24h.The pH remains acidic (,1)throughout the synthesis.The light-orange solid product was recovered by filtration and washed with deionized water.A treatment in hotdeionised water (80u C)for 3h was applied to decrease the amount of residual trimesic acid (typically,1g of MIL-100(Fe)in 350ml of water)followed by drying at room temperature.A laboratory powder X-ray diffraction pattern showed that crystalline phase had been produced,isostructural with the chromium carboxylate MIL-100(Cr).23Elemental analysis indicated that the contents of Fe,F,C and H (obs:13.8%Fe,1.3%F,23.5%C)are in good agreement with the values based on the structure formula,Fe III 3O(H 2O)2F ?{C 6H 3(CO 2)3}2?n H 2O (n y 14.5)despite an excess of carbon content (calc.:14%Fe,1.8%F,21.0%C).It has not been possible to prepare sizeable crystals for single-crystal diffraction studies whatever the synthesis conditions.Thermal analysis (TGA2050TA apparatus,O 2flow,heating rate 3K min 21)shows three weight losses between 298and 873K.The first (y 40.1%)at 373K is attributed to the departure of the free water molecules inside the pores.The second at 473K (y 4.5%)comes from the water molecules which interact with the iron trimers.The final weight loss (y 35.3%)at 573K is related to the combustion of the trimesic acid.These latter two losses are,on the whole,in agreement with the theoretical values (calc:4.6and 35.2%).Note that the free water content deduced from the structure determination (y 29.5%)is slightly lower than the experimental value (TGA).This is due to the variable water content in MIL-100solids which vary considerably depending on the atmospheric conditions.The structure of title solid was solved from high-resolution synchrotron X-ray powder diffraction data using coordinates of MIL-100(Cr)as the starting model (ESI {).{The final Rietveld plot is shown in -100(Fe)is an iron(III )carboxylate built up from trimers of iron octahedra sharing a common vertex m 3-O.The trimers are then linked by the benzene-1,3,5-tricarboxylate moieties in such a way that this leads to the formation of hybrid supertetrahedra which further assemble into a zeolitic architecture of the MTN type (Fig.2).This delimits two types of mesoporouscages of free apertures of ca.25and 29A˚,accessible through microporous windows of ca. 5.5and 8.6A˚.Bond valence calculations indicate a trivalent state of iron.As is illustrated in Fig.3,the transmission Mo ¨ssbauer spectra recorded at 300and 77K consist of asymmetrical quadrupolar doublets with broadened and overlapped lines,in agreement with the large number of different environments of Fe atoms.24Whatever the fitting model,the isomer shift values (0.54and 0.42mm s 21at 300K and 77K,respectively)remain consistent with the presence of high spin state of Fe 3+ions located in octahedral units.Taking into account the crystallographic structure,one might describe the spectra by means of sevena Institut Lavoisier,UMR CNRS 8180,Universite ´de Versailles Saint-Quentin-en-Yvelines,45Avenue des Etats-Unis,78035,Versailles Ce ´dex,France.E-mail:serre@chimie.uvsq.fr;Fax:0033139254358;Tel:0033139254305;bCatalysis Centre for Molecular Engineering,Korea Research Institute of Chemical Technology (KRICT),Jang-dong 100,Yuseong-Gu,305-600,Daejon,South Korea cLaboratoire de Physique de L’Etat Condense ´,UMR CNRS 6087,Universite ´du Maine,72085,Le Mans Cedex 9,France dESRF,rue J.Horowitz,38043,Grenoble Cedex,France{Electronic supplementary information (ESI)available:Crystallographic details,TGA,adsorption,Mo ¨ssbauer and catalysis data.See DOI:10.1039/b704325bCOMMUNICATION /chemcomm |ChemComm2820|mun.,2007,2820–2822This journal is ßThe Royal Society of Chemistry 2007D o w n l o a d e d o n 20 S e p t e m b e r 2011P u b l i s h e d o n 15 M a y 2007 o n h t t p ://p u b s .r s c .o r g | d o i :10.1039/B 704325Bdifferent quadrupolar components:different solutions can be found without any clear and sound interpretation.On the contrary,assuming that three main types of Fe octahedral units can be distinguished according to their nearest chemical environ-ments,this gives rise to a reasonable fitting model involving three quadrupolar components,as shown in Fig. 3.This could be explained by the presence of different fluorine environments for the iron atoms within the structure.It has been proved previously with the isostructural solid MIL-100(Cr)that the distribution offluorine atoms bound to chromium atoms from the trimers,was at the origin of the three types of environments for the metal sites as evidenced by CO adsorption experiments.25Thus,as MIL-100(Fe)possesses the same fluorine composition as MIL-100(Cr),i.e.one fluorine atom per trimer,a similar environment is expected.The different values of isomer shift confirm this hypothesis with some Fe ions mainly surrounded by O while the environment of others (with higher isomer shift)also contain F ions.The values of quadrupolar splitting (0.30,0.52and 0.90mm s 21)are consistent with different degrees of distortions and the highest distorted octahedral unit contains F anions.Finally,the significant increase of the absorption spectral area when decreasing the temperature should be noted.This is due to a large increase of the Debye–Waller factor,resulting from the strengthening of the structure,particularly due to its hybrid character which is temperature sensitive.The permanent porosity of the new solid was measured by N 2adsorption experiments performed in liquid -100(Fe)revealed an adsorption isotherm characteristic of micro-porous solids (Fig.4).However,due to the presence of two types of microporous windows and mesoporous cages with different sizes,two secondary uptakes at ca.P /P 0=0.06and 0.12can be distinguished from the isotherm,in agreement with our previous results with MIL-100(Cr).23The corresponding Langmuir surface area is estimated to be .2800(100)m 2g 21.This value is,on the whole,in agreement with that of the isostructural solid MIL-100(Cr)(S =3100m 2g 21).The thermal stability ofMIL-100(Fe)Fig.1Final Rietveld refinement plot for Fe III 3O(H 2O)2F ?{C 6H 3(CO 2)3}2?n H 2O (MIL-100(Fe))in the space group Fd 3¯m .Observed,calculated and difference profiles are plotted on the same scale.Inset is an expanded region of a small part of thedata.Fig.2Structure of MIL-100(Fe).(A)A trimer of iron octahedra and trimesic acid.(B)Schematic view of one unit cell of MIL-100(Fe).(C)the two types of cages in polyhedral mode.(D)Pentagonal and hexagonal windows in balls and sticks (Fe:grey;O:red;C:black).Fig.3Transmission Mo ¨ssbauer spectra of MIL-100(Fe)recorded at 300and 77K.Fig.4N 2adsorption isotherm of MIL-100(Fe)at 77K (P 0=1atm).This journal is ßThe Royal Society of Chemistry 2007mun.,2007,2820–2822|2821D o w n l o a d e d o n 20 S e p t e m b e r 2011P u b l i s h e d o n 15 M a y 2007 o n h t t p ://p u b s .r s c .o r g | d o i :10.1039/B 704325Bhas been studied by X-ray thermodiffractometry and reveals that this solid is stable up to 270u C.The use of heterogeneous catalysts in the liquid phase is highly desirable for Friedel–Crafts type reactions 27because the use of conventional homogeneous catalysts for these reactions leads to several problems,such as difficulty in separation and recovery,disposal of spent catalyst and corrosion.In the light of the importance of heterogenous catalysis,we have performed Friedel–Crafts benzylation to confirm the suitability of iron-containing MIL-100as a new porous catalyst (see ESI {).Fig.5shows the conversion of benzyl chloride in the liquid phase benzylation of benzene by benzyl chloride (BZC)to diphenylmethane (DPM)at 70u C over MIL-100(Fe),MIL-100(Cr)and zeolite catalysts for comparison.We find that MIL-100(Fe)gives high activity and selectivity,showing 100%BZC conversion [X (BZC)]with nearly 100%DPM selectivity [S (DPM)]being quickly attained after a short induction period (5min).By contrast,MIL-100(Cr)was poorly active for the reaction,i.e.,42%X (BZC)after 30h.Solid acid catalysts such as HBEA and HY zeolites were not so active under the same reaction conditions:43.4%X (BZC)with 97.6%S (DPM)for HBEA and 54.0%X (BZC)with 95.8%S (DPM)for HY after 5h.These results clearly indicate that iron species in MIL-100(Fe)play a role as catalytically active sites in Friedel–Crafts alkylation.The observed high benzylation activity of MIL-100(Fe)might be attributed to the redox property of trivalent iron species (Fe 3++e 2«Fe 2+)to play a significant role in activating both the reactants,consistent with results observed in iron-containing solid catalysts.26–28The origin of the induction period in the benzylation is generally ascribed to the inhibition effect by moisture present in the catalyst and/or in the reaction mixture 26or the diffusion limitation of reactant molecules into the active site in the pore.In summary,we report the synthesis and characterisation of a new example of a large-pore iron(III )carboxylate under hydro-thermal conditions.First catalytic experiments suggest that iron(III )species metal sites are particularly interesting in catalysis and might lead to new applications.We are currently surveying phases produced from other iron(III )carboxylate systems.This work was supported by CNRS,the EU funding via FP6-Specific Targeted Research Project DeSANNS (SES6-020133),theKorea Ministry of Commerce,Industry and Energy through the Research Center for Nanocatalysis (TS066-26)and the Institutional Research Program (KK-0703-E0).The KRICT s authors thank Dr S.H.Jhung and Dr Y.K.Hwang for helpful discussion.We thank ESRF for provision of synchrotron beam time.Notes and references{Coordinates of MIL-100(Fe)have been deposited with the CCDC data 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R.A.Fischer,Angew.Chem.,Int.Ed.,2005,44,6237.12S.Konar,P.S.Mukherjee, E.Zangrando, F.Lloret andN.R.Chaudhuri,Angew.Chem.,Int.Ed.,2002,41,1561.13G.Guillou,C.Livage,M.Drillon and G.Fe ´rey,Angew.Chem.,Int.Ed.,2003,115,5472.14F.Pelle ´,S.Surble ´,C.Serre,lange and G.Fe ´rey,J.Lumin.,2007,122–123,492.15M.Sanselme,J.M.Grene `che,M.Riou-Cavellec and G.Fe ´rey,mun.,2002,2172.16C.Serre,lange,S.Surble´and G.Fe ´rey,Angew.Chem.,Int.Ed.,2004,43,6286.17W.Schmitt,J.P.Hill,M.P.Juanico,A.Caneschi,F.Costantino,C.E.Anson and A.K.Powell,Angew.Chem.,Int.Ed.,2005,44,4187.18T.R.Whitfield,X.Wang,L.Liu and A.J.Jacobson,Solid State Sci.,2005,7,1096.19S.Surble ´,C.Serre,C.Mellot-Draznieks,lange and G.Fe ´rey,mun.,2006,284.20C.Serre,lange,S.Surble ´,J.M.Grene `che and G.Fe ´rey,Chem.Mater.,2004,16,2706.21A.C.Sudik,A.P.Co ˆte ´,A.G.Wong-Foy,M.O’Keefe and O.M.Yaghi,Angew.Chem.,Int.Ed.,2005,118,2590.22J.Jia,X.Lin,C.Wilson,A.J.Blake,N.R.Champness,P.Hubberstey,G.Walker,E.J.Cussena and M.Schro 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FC-98全氟丁基磺酸钾产品简介CAS: 29420-49-3性状:白色或微黄颜色粉末含量：≥98%消耗量：0.01%-0.5%PH 值5-7分解温度：300℃表面张力：22mN/m(0.1%水溶液)英文品名Perfluorobutane sulfonic acid potassium salt作用与机理本品系全氟阴离子表面活性剂，具有含氟表面活性剂的一般特性。

广泛用于合成材料的阻燃，特别是聚碳酸酯材料的最佳阻燃剂。

聚碳酸酯阻燃剂PC阻燃剂包装及存放包装：500克塑料瓶；25KG纸板桶存放：本品属非危险品，应存放在阴凉干燥处。

FC-134全氟辛基季铵碘化物（阳离子）产品简介含量：99.5%性状: 淡黄颜色固体粉末，1%的水溶液，可形成凝胶。

化学名称：N-甲基，N-甲基，3-全氟辛基磺酰胺基丙基铵盐碘化物(N,N-dimethyl,3-perfluorooctylsulfonylpropyl-aminium, iodide)溶解性1%的水溶液，可形成凝胶表面张力17mN/m (1‰水溶液)消耗量：0.01-0.1%作用与机理降低表面张力泡沫灭火(对照美国3M公司牌号：FC-134)本品系全氟阳离子表面活性剂，由于它具有明显降低表面张力的作用，在酸、碱及中性介质中都有良好的活性，广泛用作润湿剂、铺展剂、均染剂、轻水型灭火剂、胶片涂布剂、金属清洗剂、电子波峰焊助剂。

也是纤维、纸张、皮革等疏水、疏油处理剂及防垢剂。

降低表面张力泡沫灭火包装及存放包装：500克塑料瓶；25KG纸板桶存放：本品属非危险品，应存放在阴凉干燥处。

FC-95全氟辛基磺酸钾(铬雾抑制剂)产品简介含量：98%性状: 白色粉末消耗量：0.01%-0.5%使用温度：30～65℃; 用量：0.02～0.04g/L;表面张力：22mN/m(0.1%水溶液)溶解性：易溶于水英文名称：perfluorooctanesulfonic acid potassium salt作用与机理1.本品系全氟阴离子表面活性剂2.本品作为铬雾抑制剂，在电镀铬时定量加入本品，电解时则形成一定厚度的细密泡沫层，有效的抑制酸雾放出。