全自动滴定仪测定硫酸铜溶液中的氯离子

No.ETIQ-05041Data No.NZ23-05025 No.ETIQ-05041 KEM Application Note Precipitation Titration Kyoto Electronics Manufacturing Co.， Ltd. Determination of chlorine ion in copper sulfate solution -Summary- Checked the possibility of measuring chlorine ion in copper sulfate solution with AT-510. -Measuring instrument- Main unit：AT-510 Automatic potentiometric titrator Preamplifier： STD-510)Standard preamplifier Electrode： C-373 Combined silver electrode (#429-0012) -Reagent- Titrant： 0.01mol/L-Silver nitrate solution Titrant： 0.01mol/L-Silver nitrate solution Solvent： distilled water Additive： Copper (II) sulfate pentahydrate， Sodium chloride -Measurement method- Preparation： (1) Add distilled water to 15g of Copper (II) sulfate pentahydrate and 0.4949g of Sodiumchloride to prepare a total of 1L Sodium chloride solution on the order of 300ppm. (2) Add distilled water to 11.6697g of 300ppm-Sodium chloride solution to make a total of500mL Sodium chloride solution on the order of 7ppm. Measurement： (1) Place 100.0g of prepared sample (7ppm) in 100mL beaker， and titrate with 0.01mol/L-Silvernitrate solution. (EP is detected from the inflection point on the titration curve.) -Calculation- Concentration (ppm)=(EP1-BL1)xTFxC1xK1/SIZE EP1： Volume at EP (mL) BL1： Blank volume (0mL) TF： Factor of titrant (1.006) C1： Conc. conversion coefficient (0.355) (1mL of0.01mol/L-AgNO3=0.355mg CI) K1： Unit conversion coefficient (1000) SIZE： Sample size (g) -Ambient conditions- Temperature： 23°C R. Humidity： 38% Weather： Fine 上海市漕溪路222号航天大厦北楼902室网址： http：//www.kyoto-kem.net. cn -Measurement results- Run Sample size(g) Titer(mL) Concentration(ppm) 1 2 3 99.997 99.99499.992 2.0420 2.1133 2.1179 7.2714 7.5250 7.5417 Statistics MeanSD RSD 7.4361 ppm0.1686 ppm 2.2672% -Comments- Set ‘Control Speed’ at ‘Slow’in order to make the titer more than 1mL， then it becomespossible to detect chlorine ion on the order of 2ppm. -Key word and entry number in Data Base- Quantitative determination of chlorine ion in copper sulfate solution： 5 entriesQuantitative determination of chlorine ion： 61 entries 京都电子工业株式会社-可睦电子(上海)商贸有限公司 上海市漕溪路222号航天大厦北楼902室网址： http：//www.kyoto-kem.net.cn 电话： 电邮： kemu-kem@com