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ID:12785042
大小:2.35 MB
页数:14页
时间:2018-07-19
《英文对照版微晶纤维素质量标准》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、题目:微晶纤维素登记号:页数:1/13制定:审核:审批:颁发部门:质量管理部年月日年月日年月日生效日期:年月日分发部门:标题1.Characters1.性状2.IdentificationA.B.正文Awhiteoralmostwhite,fineorgranularpowder,practicallyinsolubleinwater,inacetone,inethanol,intolueneandindiluteacidsandina50g/lsolutionofsodiumhydroxide.白色或几乎白色,细粉或粒状粉末。不溶于水,丙酮,乙醇,甲苯,稀
2、酸和50g/l的氢氧化钠溶液。Reagent:ZincChlorideSolution,Iodinated:Dissolve20gofzincchlorideand6.5gofpotassiumiodidein10.5mlofwater.Add0.5gofiodineandshakefor15minutes,filteringifnecessary.Storeprotectedfromlight.Method:Placeabout10mgonawatch-glassanddispersein2mlofiodinatedzincchloridesolution
3、R.Thesubstancebecomesviolet-blue.Apparatus:capillaryviscometerReagent:nitrogen;CupriethylenediamineHydroxideSolution:Usea1Msolutioninwhichthemolarratioofethylenediaminetocopperis2.00±0.04.Method:题目:微晶纤维素审批:年月日登记号:页数:2/13标题正文Transfer1.300gtoa125mlconicalflask.Add25.0mlofwaterRand25.
4、0mlof1Mcupriethylenediaminehydroxidesolution.ImmediatelypurgethesolutionwithnitrogenR,insertthestopperandshakeuntilcompletelydissolved.Transfer7.0mlofthesolutiontoasuitablecapillaryviscometer(2.2.9).Equilibratethesolutionat25°C±0.1°Cfornotlessthan5min.Recordtheflowtimet1inseconds,b
5、etweenthe2marksontheviscometer.Calculatethekinematicviscosityυ1ofthesolutionusingtheformula:t1(k1)wherek1istheviscometerconstant.Diluteasuitablevolumeof1McupriethylenediaminehydroxidesolutionwithanequalvolumeofwaterRandmeasuretheflowtimet2usingasuitablecapillaryviscometer.Calculate
6、thekinematicviscosityυ2ofthesolventusingtheformula:t2(k2)wherek2istheviscometerconstant.Determinetherelativeviscosityηrelofthesubstancetobeexaminedusingtheformula:υ1/υ2Determinetheintrinsicviscosity[η]cbyinterpolation,usingtheIntrinsicViscosityTable(Table0316.-1).Calculatethedegree
7、ofpolymerisationPusingtheformula:wheremisthemassingrams,ofthesubstancetobeexaminedandbisthelossondryingasapercentage.Thedegreeofpolymerisationisnotmorethan350.题目:微晶纤维素审批:年月日登记号:页数:3/13标题2.鉴别A:B:正文试剂:经碘处理的氯化锌溶液(将20g的氯化锌和6.5g的碘化钾溶解于10.5ml水中,再加0.5g的碘,振摇15min,如有必要可过滤,避光保存);方法:取约10mg的供试
8、品于表面玻璃中,用2ml经碘处理的氯化锌溶液,供试品
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