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hach仪器酸度计

本文章主要介绍了:hach仪器酸度计,使用酸度计应该注意的是,上海大浦精密酸度计phs 3c,hach仪器酸度计等信息

常用缓冲溶液的配制方法1.甘氨酸–盐酸缓冲液(0.05mol/L)X毫升0.2mol/L甘氨酸+Y毫升0.2mol/LHCI,再加水稀释至200毫升pHXYpHXY2.02.42.62.4000118588.032.424.216.83.03.23.43.4000118588.48.26.45.0甘氨酸分子量=75.07,0.2mol/L甘氨酸溶液含15.01克/升。2.邻苯二甲酸–盐酸缓冲液(0.05mol/L)X毫升0.2mol/L邻苯二甲酸氢钾+0.2mol/LHCl,再加水稀释到20毫升pH(20℃)XYpH(20℃)XY2.22.42.62.83.0555554.0703.9603.2952.6422.0223.23.43.63.855551.4700.9900.5970.263邻苯二甲酸氢钾分子量=204.23,0.2mol/L邻苯二甲酸氢溶液含40.85克/升3.磷酸氢二钠–柠檬酸缓冲液pH0.2mol/LNa2HPO4(毫升)0.1mol/L柠檬酸(毫升)pH0.2mol/LNa2HPO4(毫升)0.1mol/L柠檬酸(毫升)2.22.42.62.83.03.23.43.63.84.04.24.44.64.85.00.401.242.183.174.114.945.706.447.107.718.288.829.359.8610.3010.6018.7617.8216.8315.8915.0614.3013.5612.9012.2911.7211.1810.6510.149.705.25.45.65.86.06.26.46.66.87.07.27.47.67.88.010.7211.1511.6012.0912.6313.2213.8514.5515.4516.4717.3918.1718.7319.1519.459.288.858.407.917.376.786.155.454.553.532.611.831.270.850.55Na2HPO4分子量=14.98,0.2mol/L溶液为28.40克/升。Na2HPO4·2H2O分子量=178.05,0.2mol/L溶液含35.01克/升。C4H2O7·H2O分子量=210.14,0.1mol/L溶液为21.01克/升。4.柠檬酸–氢氧化钠-盐酸缓冲液pH钠离子浓度(mol/L)柠檬酸(克)C6H8O7·H2O氢氧化钠(克)NaOH97%盐酸(毫升)HCl(浓)最终体积(升)①2.23.13.34.35.35.86.50.200.200.200.200.350.450.4000118588400011858840001185884000118588400011858840001185880①使用时可以每升中加入1克克酚,若最后pH值有变化,再用少量50%氢氧化钠溶液或浓盐酸调节,冰箱保存。5.柠檬酸–柠檬酸钠缓冲液(0.1mol/L)pH0.1mol/L柠檬酸(毫升)0.1mol/L柠檬酸钠(毫升)pH0.1mol/L柠檬酸(毫升)0.1mol/L柠檬酸钠(毫升)3.03.23.43.63.84.04.24.44.64.818.617.216.014.914.013.112.311.410.39.21.42.84.05.16.06.97.78.69.710.85.05.25.45.65.86.06.26.46.68.27.36.45.54.73.82.82.01.411.812.713.614.515.316.217.218.018.6柠檬酸C6H8O7·H2O:分子量210.14,0.1mol/L溶液为21.01克/升。柠檬酸钠Na3C6H5O7·2H2O:分子量294.12,0.1mol/L溶液为29.41克/毫升。6.乙酸–乙酸钠缓冲液(0.2mol/L)pH(18℃)0.2mol/LNaAc(毫升)0.3mol/LHAc(毫升)pH(18℃)0.2mol/LNaAc(毫升)0.3mol/LHAc(毫升)2.63.84.04.24.44.60.751.201.802.653.704.909.258.808.207.356.305.104.85.05.25.45.65.85.907.007.908.609.109.404.103.002.101.400.900.60Na2Ac·3H2O分子量=136.09,0.2mol/L溶液为27.22克/升。7.磷酸盐缓冲液(1)磷酸氢二钠–磷酸二氢钠缓冲液(0.2)pH0.2mol/LNa2HPO4(毫升)0.2mol/LNaH2PO4(毫升)pH0.2mol/LNa2HPO4(毫升)0.2mol/LNaH2PO4(毫升)5.85.96.06.16.26.36.46.56.66.76.86.98.010.012.315.018.522.526.531.537.543.549.555.092.090.087.785.081.577.573.568.562.556.551.045.07.07.17.27.37.47.57.67.77.87.98.061.067.072.077.081.084.087.089.591.593.094.739.033.028.023.019.016.013.010.58.57.05.3Na2HPO4·2H2O分子量=178.05,0.2mol/L溶液为85.61克/升。Na2HPO4·12H2O分子量=358.22,0.2mol/L溶液为71.64克/升。Na2HPO4·2H2O分子量=156.03,0.2mol/L溶液为31.21克/升。(2)磷酸氢二钠–磷酸二氢钾缓冲液(1/15mol/L)pHmol/L/15Na2HPO4(毫升)mol/L//15KH2PO4(毫升)pHmol/L//15Na2HPO4(毫升)mol/L//15KH2PO4(毫升)4.925.295.916.246.476.646.816.980.100.501.002.003.004.005.006.009.909.509.008.007.006.005.004.007.177.387.738.048.348.678.187.008.009.009.509.759.9010.003.002.001.000.500.250.100Na2HPO4·2H2O分子量=178.05,1/15M溶液为11.876克/升。KH2PO4分子量=136.09,1/15M溶液为9.078克/升。8.磷酸二氢钾–氢氧化钠缓冲液(0.05M)X毫升0.2MK2PO4+Y毫升0.2NNaOH加水稀释至29毫升pH(20℃)X(毫升)Y(毫升)pH(20℃)X(毫升)Y(毫升)5.86.06.26.46.66.85555550.3720.5700.8601.2601.7802.3657.07.27.47.67.88.05555552.9633.5003.9504.2804.5204.6809.巴比妥钠-盐酸缓冲液(18℃)pH0.04M巴比妥钠溶液0.2V盐酸pH0.04M巴比妥钠溶液(毫升)0.2N盐酸(毫升)6.87.07.27.47.67.88.08.40001185884000118588018.417.816.715.313.411.479.397.218.48.68.89.09.29.49.4000118588400011858805.213.822.521.651.130.700.35巴比妥钠盐分子量=206.18;0.04M溶液为8.25克/升10.Tris–盐酸缓冲液(0.05M,25℃)50毫升0.1M三羟甲基氨基甲烷(Tris)溶液与X毫升0.1N盐酸混匀后,加水稀释至100毫升。pHX(毫升)pHX(毫升)7.107.207.307.407.507.607.707.807.908.0045.744.743.442.040.338.536.634.532.029.28.108.208.308.408.508.608.708.808.9026.222.919.917.214.712.410.38.57.0三羟甲基氨基甲烷(Tris)HOCH2CH2OHCHOCH2NH2分子量=121.14;0.1M溶液为12.114克/升。Tris溶液可从空气中吸收二氧化碳,使用时注意将瓶盖严。11.硼酸–硼砂缓冲液(0.2M硼酸根)pH0.05M硼砂(毫升)0.2M硼砂(毫升)pH0.05M硼砂(毫升)0.2M硼酸(毫升)7.47.67.88.01.01.52.03.09.08.58.07.08.28.48.79.03.54.56.08.06.55.54.02.0硼砂Na2B4O7·H2O,分子量=381.43;0.05M溶液(=0.2M硼酸根)含19.07克/升。硼酸H2BO3,分子量=61.84,0.2M溶液为12.37克/升。硼砂易失去结晶水,必须在带塞的瓶中保存。11.硼酸-硼砂缓冲液(0.2M硼酸根)pH0.05M硼砂(毫升)0.2M硼酸(毫升)pH0.05M硼砂(毫升)0.2M硼酸(毫升)7.47.67.88.01.01.52.03.09.08.58.07.08.28.48.79.03.54.56.08.06.55.54.02.0硼砂Na2B4O7·10H2O,分子量=381.43;0.05M溶液(=0.2M硼酸根)含19.07克/升。硼酸H2BO3,分子量=61.84,0.2M溶液为12.37克/升。硼砂易失去结晶水,必须在带塞的瓶中保存。12.甘氨酸–氢氧化钠缓冲液(0.05M)X毫升0.2M甘氨酸+Y毫升0.2NnaOH加水稀释至200毫升pHXYpHXY8.68.89.09.29.4000118588.06.08.812.016.89.69.810.010.410.40001185882.427.232.038.645.5甘氨酸分子量=75.07;0.2M溶液含15.01克/升。13.硼砂-氢氧化钠缓冲液(0.05M硼酸根)X毫升0.05M硼砂+Y毫升0.2NNaOH加水稀释至200毫升pHXYpHXY9.39.49.65050506.011.023.09.810.010.150505034.043.046.0硼砂Na2B4O7·10H2O,分子量=381.43;0.05M溶液为19.07克/升。14.碳酸钠-碳酸氢钠缓冲液(0.1M)Ca2+、Mg2+存在时不得使用pH0.1MNa2CO3(毫升)0.1MN2HCO3(毫升)20℃37℃9.169.409.519.789.9010.1410.2810.5310.838.779.129.409.509.729.9010.0810.2810.400011858887654321Na2CO2·10H2O分子量=286.2;0.1M溶液为28.62克/升。N2HCO3分子量=84.0;0.1M溶液为8.40克/升。15.“PBS?p>了解更多关于:赛多利斯pb-10酸度计产品参数,以柠檬酸计的酸度计算公式,酸度计缓冲,酸度计pb-10操作规程,酸度计 phs-25,若用酸度计同时测量一组试液,ph酸度计上海phs-3e,phs 3c酸度计校正方法,青岛即墨酸度计,电位滴定 用酸度计 如何操作,酸度计零电位含义,数显酸度计百科,酸度计一PHS一25型,ph 10 笔式酸度计,酸度计-25,PHS一3B酸度计,酸度计校准技术服务,酸度计度数,ph酸度计缓冲液的配制,phs3e酸度计标定
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