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简介：<正>1IntroductionSodiumboratesasimportantrawmaterialsarewidelyusedinthefieldofglassindustry,ceramicindustry,medicalindustry,paperindustry,agricultureandsoonfor

简介：ToimprovethewatertreeresistanceofPE,linearlow-densitypolyethylene(LLDPE)wascompoundedwithsodiumacrylate(NaAA)forinsitupolymerization,inwhichNaAAwasformedthroughtheneutralizationofacrylicacid(AA)withsodiumhydroxide(NaOH)beforeaddingdicumylperoxide(DCP)toinitiatetheinsitugraftpolymerizationandhomopolymerization.AseriesofLLDPE/NaAAcompoundswereinvestigatedfortheirwaterabsorptionratio(WAR)measurement,watertreeing,mechanicalanddielectricproperties.TheresultsstronglysuggestthatNaAAcanimprovethewatertreeresistanceofLLDPE.Inaddition,theLLDPE/NaAAcompoundspossesssatisfactorymechanicalpropertiesanddielectricproperties.CharacterizationofLLDPE/NaAAcompoundsbyusingFouriertransforminfraredspectrometry(FTIR)suggeststhattheneutralizationandpolymerizationreactioncouldbeachievedeffectively.UsingadequateDCPcontentisthekeyfactorforcontrollingthepolymerizationofNaAAwithpreciseconversionratio.

简介：有压克力酰胺(AM)的藻朊吃了的钠的接枝共聚物(SA)用一个ceric离子被综合开始的答案聚合技术。压克力酰胺变换被改变反应条件学习，例如温度，藻朊吃了的钠的分子的重量和反应时间。接枝共聚物的絮凝表演(下垂)在染浪费水在白陶土暂停并且也被调查。下垂，这被发现在染废水在白陶土暂停，并且在为CODCr和colority的移动能力作为与polyacrylamide和SA相比在絮凝行为是更有效的。

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简介：<正>1IntroductionAnhydroussodium,mainlyproducedintheUnitedStates,Canada,Japan,isindispensablecommoditiesandrawmaterialsindailylifeandindustry.Inrecentyears,anhydroussodiumsulfateofgeneralsizewasmuchoversupplied[1].Howeverparticlesanhydroussodiumsulphateoflargesizeisnotadequatetothedemandforits

简介：Sodiumnitroprussideismainlyusedtoreducebloodpressureandcontrolcardio-vasculardiseases.Thisstudyistoinvestigatetheeffectofsodiumnitroprussideonthecardiovas-cularmechanics.Eightmalemongreldogswereused.Anesthetizedwithsodiumpen-tobarbital,thedogswerecatheterizedontheleftfemoralarterytorecordbloodpres-sure.Electromagneticcuff-typeflowtransducerwasfixedonascendingaortatomea-

简介：ThefeasibilityofusingsodiumsulfideasthesolemodifierfortheflotationofXinhuamolybdeniteorewasexamined.Thepotentialmechanismsinvolvedinthedifferentflotationsystemswerediscussed.Thecomparativeflotationresultsrevealthatinthekerosene-sodiumsilicateflotationsystem,betterrecoveryandgradeofthemolybdenumareobtainedusingsodiumsulfideastheslurrypHadjustmentagentthanusingCaO.Undertheoptimalconditions(64g/tkeroseneand6kg/tNa2S),satisfiedrecoveryandgradeofmolybdeniteconcentratecanbeachieved(84%and8.2%,respectively),indicatingthatsodiumsulfideisapotentialsubstitutemodifierofsodiumsilicate.Theopen-circuitflotationtestresultsfurtherconfirmtheeffectivenessofsodiumsulfidewhichmayrenderrecyclingthetailingwaterpossibleandmaketheflotationprocessmoreenvironmentalacceptableandmoreeconomicalduetothelessuseofkeroseneandscavengers.

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简介：Thereexistsauniversalphenomenathatsodiumionsareleakedfromthestrongbasicanionexdchangerinoperation,whichhasbeenpuzzlingtheresearchersworkinginthefieldofwatertreatmentforyears.Itiswellknownthattheleakageofsodiumionswillseriouslyaffectthepruityofeffluent.Onthebasisoflotsoflaboratoryandindustrialexperiments,themechanismofthesodiumionsleakedfromananionexchangerhasbeenpreliminarilymadeoutandsomenewchemicalreactionequationsaswellassomeimprovingmeasureshavebeenputforwardinthisarticle.

简介：Microwaveradiationwasappliedtothedetectionofmetamizoiesodiumbycyclicvoltammetry.TheelectrochemicalcharacteristicsofmetamizoiesodiumwerestudiedbycyclicvoltammetryatGCelectrodeundermicrowaveradiationandaconsiderablecurrentenhancementwasobservedformetamizoiesodiuminaqueous0.05mol/LH_2SO_4.Undertheoptionalconditions,metamizoiesodiumwasdeterminedintheabsenceandpresenceofmicrowaveactivation.Intheabsenceofmicrowaveactivationcyclicvoltammogramofmetamizoiesodiumshowsgoodlinearrelationshipinaconcentrationrangeof8.0×10~(-5)—1.0×10~(-3)mol/Linaqueous0.05mol/LH_2SO_4withadetectionlimitof6.75×10~(-6)mol/L(S/N=3)andtheequationoflinearregressionisI_p=12.973c-0.1905(R~2=0.9996,n=6);inthepresenceof80Wmicrowaveactivationcyclicvoltammogramofmetamizoiesodiuminshowsgoodlinearrelationshipinaconcentrationrangeof4.0×10~(-5)—1.0×10~(-3)mol/Linaqueous0.05mol/LH_2SO_4withadetectionlimitof4.41×10~(-6)mol/L(S/N=3)andtheequationoflinearregressionisI_p=25.107c-0.1193(R~2=0.9973,n=7).Thecurrentinthepresenceof80Wmicrowaveactivationincreasestoabout2ordersofmagnitudecomparedwiththatintheabsenceofmicrowaveactivation.Theproposedmethodinthepresenceofmicrowaveactivationshowedhighselectivityandsensitivity,andthesamplingofthedisposalmethodissimple.ThemethodwasverifiedbythedeterminationofMetamizoieSodiumtabletwithsatisfactoryresults.

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简介：酸的分解的动力学在气压下面与一个钠氢氧化物系统溶解了钛炉渣被学习。钛抽取上的反应温度，粒子尺寸和NaOH-to-slag集体比率的效果被调查。结果证明温度和粒子尺寸在钛抽取上有重要影响。有化学反应的缩小的核心模型控制了的钛抽取表演的试验性的数据过程为炉渣的分解是很适用的，与62.4kJ·mol−1的一个明显的激活精力。钛的约85wt.%−90wt.%能在最佳的条件下面从炉渣被提取。另外，在产品获得的钛二氧化物的纯净直到98.5wt.%。

简介：钠tetrafluoroborate(NaBF4)被发现在没有溶剂的条件下面与醛和酉同类催化吲哚的electrophilic替换反应负担得起相应二度(indolyl)在高收益的甲烷。

简介：Studyonoxidizingcelluloseto2,3-dialdehydecellulosebysodiumperiodate(NaIO4)wascarriedout.TheeffectsofreactionconditionssuchaspHofsolution,temperature,oxidantconcentration,oxidationtime,theparticlesizeof2,3-dialdehydecelluloseandalkalitreatmenttemperatureonthedialdehydeconcentrationofcellulosewereinvestigatedindetail.Theresultsshowthatthealdehydegroupcontentwascreatedwhilereactiontemperatureandalkalitreatmenttemperatureincreased.Themostprincipalfactorsaffectingthealdehydegroupcontentof2,3-dialdehydecellulosewerefoundoutandthebestoxidationconditionswereasfollows:thepHwas2,thereactiontemperaturewas45℃,themassratioofcellulosetoNaIO4was1/2,thereactiontimewas4h,thealkalitreatmenttemperaturewas70℃andsmallerparticlesizewas0.80mm.

简介：Theadditionofsodiumperfluoroalkanesulfinates（RFSO2Na）tovariousolefins（CH2=CHR）initiatedbyFentonreagent(Fe2+-H2O2)inthepresenceofsodiumazidegavetheadduetsRFCH2-CHN3Ringoodyield.AradicalmechanismwasproposedbasedontheEPRandotherevidences.TheadductswerereadilyreducedthroughcatalytichydrogenationtogivethecorrespondingaminesRFCH2CH（NH2）Rinhighyield.Thereactionrepresentsaconvenientandeffectiveroutetotheseusefulorganofluorinecompounds.

简介：AbstractSodium-glucose cotransporter-2 inhibitors (SGLT2 inhibitors) are a new type of drug for the treatment of diabetes, and they have been proven to have a good hypoglycemic effect. Several lines of clinical evidence have shown that SGLT2 inhibitors can significantly reduce the risks of atherosclerosis, hospitalization for heart failure, cardiovascular death, and all-cause mortality and delay the progression of chronic kidney disease. Because of the protective effects of SGLT2 inhibitors on the heart and kidney, they are being studied for the treatment of heart failure and chronic kidney disease in patients without diabetes. Therefore, it is necessary for cardiologists, patients with diabetes, and nephrologists to fully understand this type of drug. In this review, we summarize the following three aspects of SGLT2 inhibitors: the recent clinical evidence of their cardiovascular benefits, their mechanisms of action, and their safety.

简介：由支持硅石的钠氢硫酸盐的本甲基酉旨的新debenzylation被描述。debenzylation能有选择地并且高效地被完成在对没有影响象nitro，不饱和的契约，和乙醇酉旨那样的敏感的功能的组的优秀收益好。

简介：Thecarboxylterminalofsodiumoleatehasastrongerpolaritythanthatofoleicacid;thisterminalismorelikelytobedipolepolarizedandionicallyconductiveinamicrowavefield.Sodiumoleatewasusedasthemodelcompoundtostudythedecarboxylationofoleicacidleadingtohydrocarbonformationviamicrowave-assistedpyrolysistechnology.Thepyrolysisgas,liquid,andsolidproductswerepreciselyanalyzedtodeducethemechanismfordecarboxylationofsodiumoleate.Microwaveenergywasabletoselectivelyheatthecarboxylterminalofsodiumoleate.Duringdecarboxylation,thedoublebondinthelonghydrocarbonchainformedap-πconjugatedsystemwiththecarbanionintermediate.Theresultingp-πconjugatedsystemwasmorestableandbeneficialtothepyrolysisreaction(decarboxylation,terminalallylation,isomerization,andaromatization).Thephysicalpropertiesofpyrolysisliquidweregenerallysimilartothoseofdieselfuel,therebydemonstratingthepossibleuseofmicrowavesforcontrollingthedecarboxylationofsodiumoleateinordertomanufacturerenewablehydrocarbonfuels.