贫富油中萘含量的测定.doc

贫富油中萘、酚的测定一、 萘的测定1、 把贫富油进行蒸馏，馏出液全部放入250ml烧杯中、加入氯化钠进行脱水，静止沉淀后。2、 称取5克脱水后的馏液，放入长形小烧杯内，加入20g精萘放入850C的水欲锅中溶解。3、 将溶解后的混合萘倒入茹可夫瓶内2/3，加温度计摇动，至开始出现结晶，且温度不在变化时，读出温度，在洗油萘含量表上查出萘的含量。4、 在长形小烧杯内加入25g精萘放入水欲锅水溶解，读出结晶温度，在工业萘的含量表上查出萘的百分含量。萘（5工业萘4精萘）工业萘洗油表上查出；精萘工业萘表上查出；备注：茹可夫试剂瓶要提前在85的烘箱里预热。二、 酚的测定1、 在双球计量管内加入10的氢氧化钠溶液至刻度，再加入蒸馏出的馏出液（不定量,但必须有重量，用烧杯称量）用苯冲洗烧杯三次，每次加20毫升苯洗液，洗液倒入双球计量管内，反复摇动5min,然后静止30分钟读数。 1.04读数X样重1.040酚的平均比重苯类产品密度测定方法 GB2013-80本方法适用于测定苯类产品的密度，单位为克/厘米3。苯类产品的密度以20的密度为标准，以符合20表示。一、 仪器1、 石油密度计：符合SY 330174石油密度计技术条件。计量时，规定使用SY1型石油密度计。2、 温度计：050，分度值为0.2的全浸温度计。3、 量筒：容积250毫升，直径4050毫米。二、 试验步骤1、 将混合均匀的试样，小心倾入洁净的量筒中，测定其温度，当试样温度达到205时，将石油密度计轻轻插入，待密度计与温度均比较稳定时，读记其温度，并同时按液面上边缘读记其视密度，以符号t表示。在读取读数时须注意，试样中不应有气泡，密度计不应与量筒壁接触。三、 计算1、 根据下式，将视密度换算为20时的密度。 20t（t20）式中t试验温度下试样的视密度，t试验温度，r苯类产品的密度温度系数，见下表。试样名称，克/厘米3/苯0.00105甲苯0.000925或10混合二甲苯0.00085乙基苯0.00088邻二甲0.00083间二甲苯0.00085对二甲苯0.00087四、 精确度1、 重复性：在同一试验室，同一操作者，平行测定两个结果间的差数，不应大于0.001克/厘米3。2、 在现性：不同试验室对同一试样进行测定，两个结果间的差数，不应大于0.002克/厘米3。3、 取平行测定两个结果的算术平均值，作为测定结果。附表1 水的蒸汽压力表CP(毫米汞柱)CP(毫米汞柱)CP(毫米汞柱)CP(毫米汞柱)012345678910111213141516171819202122232425264.5794.9065.2945.6856.1016.5437.0137.5138.0458.6099.2099.8410.5211.2311.9912.7913.6315.4315.4816.4817.5418.6519.8321.0722.3823.7625.2127282930313233343536373839404142434445464748495051525326.74283530.0431.8233.7035.6637.7339.9042.1844.5647.0749.6952.4455.3258.3461.5064.8068.3671.8875.6579.6083.7186.0392.5197.20102.1107.2545556575859606162636465666768697071727374757677787980112.5118.0123.8129.8136.1142.6149.4156.4163.8171.4179.3187.5196.1205.0214.2223.7233.7243.9254.6265.7277.2289.0301.4314.1327.3341.0355.181828384858687888990919293949596979899100369.1384.9400.6416.8433.6450.9468.7487.1506.1525.76546.05566.99588.10610.90657.62682.07707.27733.27760.001075附表2 换算0760毫米汞柱干气体时系数K值tp+b101112131415167257267277287297307317327337347357367377387397407417427437447457467477487497507517520. 90860.90980.91110.91240.91360.91490.91620.91750.91870.92000.92130.92250.92380. 92510.92630.92760.92890.93010.93140.93270.93400.93540.95650.93780.93900.94030.94160.94280. 90460.90580.90710.90840.90960.91090.91220.91340.91470.91600.91720.91850.91980.92100.92230.92360.92480.92610.92740.92860.92990.93110.93240.93770.93490.93620.93750.93870. 90060.90180.90310.90430.90560.90690.90810.90940.91060.91190.91320.91440.92570.91690.91820.91950.92070.92200.92320.92450.92580.92700.92830.92950.93060.93210.93330.93460. 89650.89780.89900.90030.90160.90280.90410.90530.90660.90780.90910.91030.91160.01290.91410.91540.91660.91790.91910.92040.92170.92290.92420.92540.992670.92790.92920.93040. 89250.89380.89500.89630.89750.89880.9000.90130.90250.90380.90500.90630.90750.90880.91000.91130.91250.91380.91500.91630.91750.91880.92010.92180.92260.92380.92510.92630. 88840.88960.89090.89210.89340.89460.89590.89710.89840.89960.90060.90210.90330.90460.90580.90710.90830.90960.91080.91210.91330.91460.91580.91710.91830.91960.92080.92210. 88430.88560.88680.88810.88930.89050.89180.89300.89430.89550.89680.89800.89920.90050.90170.90300.90420.90550.90670.90790.90920.91040.91170.91290.91420.91540.91660.9179续上表tp+b171819202122237257267277287297307317327337347357367377387397407417427437447457467477487497507517520.88010. 88140.8260.88390.88510.88630.88760.88880.89010.89150.89250.89380.89500.89630.89750.89870.90000.90120.90240.90370.90490.90620.90740.90740.90860.90900.91110.91240. 87590.87720.87840.87960.88090.88210.88330.88460.88580.88700.88830.88950.89070.89200.89320.89440.89570.89690.89810.89940.90060.90190.90310.90430.90560.90680.90800.90930. 87180.87310.87430.87550.87680.87800.87920.88050.88170.88290.88410.88540.88660.88760.88910.89090.89150.89280.89400.89520.89640.89770.89890.90010.90140.90260.90380.90510. 86750.86870.87000.87120.87240.87360.87490.87610.87730.87860.87980.88100.88220.88350.88470.88590.88710.88840.88960.89080.89200.89330.89450.89570.89690.89820.89940.90060.86320.86440.86560.86690.86810.86930.87050.87180.87300.87420.87540.87660.87790.87910.88030.88150.88280.88400.88520.88640.88760.88890.89010.89130.89250.89370.89500.89600. 85880.86010.86130.86250.86370.86490.86620.86740.86860.86980.87100.87220.87350.87470.87590.87710.87830.87950.88080. 88210.88320.88440.88560.88690.88810.88930.89050.89170. 85450.85580.85700.85820.85940.86060.86180.86300.86430.86550.86670.86790.86910.67010.87150.87270.87400.87520.87640.87260.87880.88000.88120.88250.88370.88490.88610.8873续上表tp+b242526272829307257267277287297307317327337347357367377387397407417427437447457467477487497507517520.85060. 85190.85310.85430.85550.85670.85790.85910.86030.86150.85270.86390.86520.86640.86760.86880.87000.87120.87240.87360.87480.87600.87730.87870.87970.88090.88210.88330. 84630.84750.84870.84990.85010.85230.85350.85470.85600. 85720.85840.85960.86080.86200.86320.86440.86560.68880.86800.86920.87040.87160.87280.87400.87520.87640.87770.87890. 84100.84220.84340.84460.84580.84700.84820.84940.85060.85180.85300.85420.85540.85660.85780.85900.86020.86140.86260.86380.86500.86620.86740.86860.86980.87100.87220.87340. 83660.83780.83920.84020.84140.84260.84380.84500.84620.84640.84860.84980.85100.85220.85340.85460.85580.85700.85820.85930.86050.86170.86290.86410.86530.86650.86770.86900. 83170.83290.83410.83530.83560.83760.83880.84000.84120.84240.84360.84480.84600.84720.84840.84960.85080.85200.85320.85440.85550.85670.85790.85910.86030.86150.86270.86390. 82690.82810.82920.83040.83160.83280.83400.83520.83640.83760.83880.84000.84110.84230.84350.84470.84590.84710.84830.84950.85070.85180.853085420.85540.85660.85780.859082210.82330.82450.82570.82680.82810.82930.83040.83160.83280.83400.83520.83640.83760.83870.83980.84110.84230.84350.84470.84590.84700.84820.84940.85060.85180.85300.8542续上表tp+b313233343536377257267277287297307317327337347357367377387397407417427437447457467477487497507517520.81720.81480.81960.82070.82190.82310.82430.82550.82660.82780.82900.83020.83140.83260.83370.83490.83610.83730.83580.83960.84080.84200.84320.84440.84560.84670.84790.84910.81210.81320.81450.81570.81690.81800.81920.82040.82160.82270.82390.82510.82630.82750.82860.82980.83100.83220.83330.83450.83570.83690.83810.83910.84040.84160.84280.84390.80720.80830.80950.81700.81190.81300.81420.81540.81660.81770.81890.82010.82130.82240.82360.82480.82600.82710.82830.82940.83070.83180.83300.83420.83530.83630.83770.83890.80190.80310.80430.80540.80660.80780.80890.81010.81130.81240.81360.81480.81600.81710.81830.81950.82060.82180.82300.82410.82530.82650.82770.82880.83000.83120.83230.83350.79690.79790.79910.80120.80140.80260.80370.80490.80610.80720.80840.80960.81070.81190.81310.81420.81540.81660.81770.81890.82010.82120.82240.82360.82470.82590.82710.82820.79090.79210.79320.79440.79550.79670.79790.79900.80020.80140.80250.80370.80600.80720.80830.80950.81070.81180.81300.81410.81530.81650.81760.81880.82000.82110.8223082340.78550.78660.78780.78900.79010.79130.79240.79360.79480.79590.79710.79820.79940.80050.80170.80290.80400.80520.80630.80750.80870.80890.81100.81210.81330.81450.81560.8168续上表tp+b38394041 4243447257267277287297307317327337347357367377387397407417427437447457467477487497507517520.78000.78110.78230.78340.78460.78570.78690.78810.78920.79040.79150.79270.79380.79500.79610.79730.79850.79960.80080.80190.80310.80420.80540.80650.80880.80880.81000.81120.77460.77570.77690.77800.77920.78030.78150.78260.78380.78500.78610.78730.78840.78960.79070.79170.79300.79420.79530.9650.79760.79880.79990.80110.80220.80340.80450.80570.76850.76970.77080.77200.77310.77430.76540.77660.77770.77890.78000.78110.78230.78350.78460.78580.78690.78810.78920.79040.79150.79260.79380.79490.79610.79720.79840.79950.76250.76370.76480.76600.76710.76820.76940.77050.77170.77280.77400.7510.77630.77740.77850.77970.76080.78200.78310.78430.78540.78650.78770.78880.79000.79110.79230.79340.75670.75680.75890.75010.76120.76240.76350.76460.76580.76690.76810.76920.77030.77150.77260.77380.77490.77600.77720.77830.77950.78060.78170.78290.78400.78520.78630.78740.75040.75160.75270.75390.75500.75610.75730.75840.75950.76070.76180.76300.76410.76520.76640.76750.76860.76980.77090.77200.77320.77430.77550.77660.77770.77890.78000.78110.74410.74520.74640.74750.74860.74980.75090.75200.75320.75430.75540.75660.75770.75880.76000.76110.76220.76340.76450.76560.76680.76790.76900.77020.77130.77240.77360.7747续上表tp+b4546474849507257267277287297307317327337347357367377387397407417427437447457467477487497507517520.73770.83890.74000.74110.74230.74340.74450.74560.74680.74790.74900.75020.75130.75240.75360.75470.75580.75690.75810.75920.76030.76150.76260.76370.76490.76600.76710.76820.73120.83230.73340.73460.73570.73680.73790.73910.74020.74130.74240.74360.74470.74580.74690.74810.74920.75030.75140.75260.75360.75480.75600.75710.75820.75930.76050.76160.72450.72560.72670.72780.72900.73010.73120.73230.73340.73460.7350.73680.73790.73910.74020.74130.74240.74350.74470.74580.74690.74800.74950.75030.75140.75250.75360.75480.71760.71870.71990.72100.72210.72320.72430.72540.72660.72770.72880.72990.73100.73220.73330.73440.73550.73660.73780.73890.74000.74110.74220.74340.74450.74560.74670.74780.71060.71180.71290.71400.71510.71620.71750.71840.71960.72070.72180.72290.72400.72510.72630.72740.72850.72960.73070.73180.73290.73410.73520.73630.73740.73850.73960.74080.70340.70450.70560.70670.70790.70900.71010.71120.7123.0.71340.71450.71560.71670.71790.71900.72010.72130.72230.72340.72450.72560.72680.72790.72900.73010.73120.73230.7334续上表tp+b101112131415167537547557567577587597607617627637647657667677687697707717727737747750.94410.94540.94660.94790.94920.95050.95170.95300.95430.95550.95680.95810.95930.96060.96190.96310.96440.96570.96700.96820.96950.97080.97200.94000.94130.94250.94380.94510.94630.94760.94890.95010.95140.95260.95390.95520.95640.95770.95900.96020.96150.96280.96400.96530.96660.96780.93580.93710.0.93960.94090.94210.94340.94470.94590.94720.94850.94970.95100.95220.95350.95480.95600.95730.95850.95980.96110.96230.96360.93170.93300.93420.93550.93670.93800.93920.94050.94170.94300.94450.94550.94680.94800.94930.95050.95180.95310.95430.95560.95680.95810.95930.92760.92880.93010.93130.93260.93380.93510.93630.93760.93880.84010.94130.94260.94380.94510.94630.94760.94880.95110.95130.95260.95380.95510.92330.92450.92580.92700.92830.92950.93080.93200.93330.93450.93580.93700.93830.93950.94080.94200.94330.94450.94580.94700.94820.94950.95070.91910.92040.92160.92290.92410.92530.92660.92780.92910.93030.93160.93280.93400.93530.93650.93780.93900.94030.94150.94270.94400.94520.9465续上表tp+b171819202122237537547557567577587597607617627637647657667677687697707717727737747750.91360.91480.91610.91730.91850.91980.92100.92230.92350.92470.92600.92720.92850.92970.93090.93220.93340.93460.93590.93840.93960.94080.94210.91050.91170.91300.91420.91540.91670.91790.91910.92040.92160.92280.92410.92530.92650.92780.92900.93020.93150.93270.93390.93520.93640.93770.90630.90750.90870.91000.91120.91240.91370.91490.91610.91740.91860.91980.92110.92230.92350.92470.92600.92720.92840.92790.93090.93210.93340.90180.90310.90430.90550.90670.90800.90920.91040.91170.91290.91410.91530.91660.91780.91900.92020.92150.92270.92390.92510.92640.92760.92880.89740.89860.89990.90110.90230.90350.90470.90600.90720.90840.90960.91090.91210.91330.91450.91570.91700.91820.91940.92060.92180.92310.92430.89290.89420.89540.89660.89780.89900.90020.90150.90270.90390.90510.90630.90760.90880.91000.91120.91240.91360.91490.91610.91730.91850.91970.88850.88970.89100.89220.89340.89460.89580.89700.89820.89940.90070.90140.90310.90450.90550.90670.90790.90920.91040.91160.91280.91400.9152续上表tp+b242526272829307537547557567577587597607617627637647657667677687697707717727737747750.88450.88570.88690.88810.88950.89160.89180.89300.89420.89540.89660.89780.89900.90020.90140.90260.90390.90510.90630.90750.90880.90990.91110.88010.88130.88250.88370.88490.88610.88730.88850.88970.89090.8921089330.89450.89570.89690.89810.89930.90060.90180.90300.90420.90540.90660.87460.87580.87700.87820.87940.88060.88180.88300.88420.88540.83660.88780.88900.89020.89140.89260.89380.89500.89620.89740.89860.89980.90110.87010.87130.87250.87370.87490.87610.87730.87850.87970.88090.88210.88330.88450.88570.88690.88810.88930.89050.89170.89290.89410.89530.89650.86510.86630.86750.86870.86990.87110.87230.87340.87460.87580.87700.87820.87940.88050.88180.88300.88420.88540.88660.88780.88900.89020.89140.86020.86140.86260.86370.86490.86610.86730.86850.86970.87090.87210.87330.87440.87560.87680.87800.87920.88040.88160.88280.88460.88520.88630.85530.85650.85770.85890.86010.86130.86250.86360.86480.86600.86720.86840.86910.87070.87190.87310.87430.87550.87670.87790.87900.88020.8814续上表tp+b313233343536377537547557567577587597607617627637647657667677687697707717727737747750.85030.85150.85260.85380.85500.85620.857485860.85970.86090.86210.86330.86450.86560.86680.86800.86920.87040.87150.87270.87390.87510.87630.84510.84630.84750.84870.84980.85100.85220.85340.85450.85570.85690.85810.85920.86040.86160.86280.86400.86510.86630.86750.86870.86980.87100.84000.84120.84240.84360.84470.84590.84710.84860.84940.85060.85180.85300.85410.85530.85650.85770.85880.86000.86120.86230.86350.86470.86590.83470.86580.83700.83820.83940.84050.84170.84290.84400.84520.84640.84750.84870.84990.85110.85220.85340.85460.85570.85690.85840.85920.86040.82940.83060.83170.