电量法库仑滴定仪测定环己烯的溴指数含量
使用京都电子公司(KEM)-库仑法卡氏水分测定仪(MKC-520),测定环己烯溴指数含量的应用资料。库仑法卡氏水分测定仪(MKC-520)不仅可以应用在测量水分含量,也可以应用在测试溴値和溴指数。
符合下列标准规范:
ASTM D1492 -13 Standard Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric Titration(库仑计滴定法测定芳烃溴指数的测定方法)。
SH/T 0630-1996 石油产品溴价、溴指数测定法(电量法)。
石油产品溴值、溴指数测定仪(MKC-520) 主要特点:
1. 大型液晶显示屏幕,清晰显示所需的讯息。
2. 符合SH/T 0630和ASTM D1492。
3. 内置隔膜式双液试剂电解电极,可选无隔膜式单液试剂电解电极。
4. 可测定石油产品和芳烃类产品的溴价和溴指数。
5. 可选加搅拌器和测量池,扩充至两组单元,方便不同试样测定。
6. 符合优良实验室和良好作业的标准规范程序。
7. 可选择使用中文或英文的操作界面。
KEM Application Note No.KCZ-09184Kyoto ElectronicsNo.LN37-09164 No.KCZ-09184上海市中山西路2366弄1号203室网址: http://www.kem-china.com Bromine Index Measurement (Coulometry) Bromine index of 0.05%-cyclohexene (90mg/100gBr2) -Abstract- The cyclohexene is a standard substance for bromine index/number. With MKC-520, measurement of cyclohexene to determine bromine index resulted withprecise agreement with theoretical value and repeatability within 1%. -Equipment- Main unit : Coulometric KF moisture titratorMKC-520 Electrode:Twin Pt electrode M-713Inner cell (#433-0006) -REagent- Anolyte : mixture of acetic acid 600mL, methanol 260mL,1M-potassium bromide140mL Catholyte : 0.2M-potassium chloride Catholyte : 0.2M-potassium chloride -Method- Pretreatment ① AAdded 100mL 0.801g(Wt1) cyclohexene to a flask, and diluted with tolune up Pretreatment ① AAdded 100mL 0.801g(Wt1) cyclohexene to a flask, and diluted with tolune upto the line and weighed at (wt2:86.605g). ② Added 5mL of solution to 100mL flask, and diluted with tolune up to the line.③ Theoretical value of bromine index of the sample was obtained from the eq:Theoretical value=194600xwt1/wt2×100/5=90.0(mg/100g) Preparation ①Added anolyte to titration cell and catholyte to the inner cell. ② After 1mL sample was added, ran Pre-Titration to stabilize drift. Measurement ①)22~3g sample was measured to determine bromine index of the sample/ Measurement ①)22~3g sample was measured to determine bromine index of the sample/ Calculation- Calculation- Bromine index (mg/100g) : ((Data-Driftxt-Blank)/(Wt1-Wt2))xDx0.1xF Data:measured bromine (ug) Wt1: sample+tare (g) Drift : drift level at start (ug/s) Wt2 : weight of tare (g) t: measure time (s) D: dilution ratio (1.0) F=1.00 : Factor Blank : Blank((ug) -Ambient condition- Room temperature : 21.9℃ Humidity: 50% Weather : fine -Measurement parameter- 一Measurement data· [Titration1 Method 5 t(stir) 0s t(wait) 15 s t(max) 0 s Drift Stop:: Rel 1.00 ug/s Cont. Gain 5.0 Stable 0.5 ug/minStart : Auto [Calculation1 Calc. No. 7 Unit : mg/100g Weight : Fixed Drift Comp:Auto ***Result *** Sample No. 01-01 Date 2009/05/08 10:43 Titr. CellNo. 1 Wt1 74.369g Wt2 71.431 g Net 2.938g D 1.0 Result 2633.6 ug 89.639 mg/100g ***Res ult*** Sample No. 01-02 Date 2009/05/0810:48 Titr. Cell No. 1 Wt1 71.763 g Wt2 69.311 g Net 2.453 g D 1.0 Result 2163.7 ug 88.206 mg/100g 一·Results一 Run Size 2633.6 Statistics (mg/100g) Conc.(mg/100g) 1st2nd3rd4th5th 2163.72263.62583.8 3395.3 MeanSD RSD 0.740.83% 89.6488.2187.9487.80 88.58 一Comment一 Use refined cyclohexene(bp 82.5~83.5℃)with refractive index 1.446~1.447 at20℃. (JAIS No.11Bromine index measurement of benzene)
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可睦电子(上海)商贸有限公司-日本京都电子(KEM)为您提供《环己烯中溴指数含量检测方案 》,该方案主要用于其他中溴指数含量检测,参考标准--,《环己烯中溴指数含量检测方案 》用到的仪器有MKH-710M容量法库仑法混合型卡尔费休水分仪、MKC-710B卡尔费休库仑法微量水分测定仪、MKC-710S豪华型库仑法卡尔费休水分仪、MKC-710M四通道旗舰型库仑法卡尔费休水分仪