硝酸浓度与比重.doc

硝酸浓度与比重2007年06月29日 星期五 22:50硝酸浓度与比重对照表(20℃/4℃)C=1000PW/M 其中C是物质的量浓度 P是硝酸的密度，注意单位是g/ml W指的是硝酸的质量分数，也就是65%-68%，M指的是硝酸的摩尔质量（63g/mol) Densities of Sulfuric AcidPercent Mass Sulfuric Acid to Water Density per g cm-3 硝酸浓度与比重对照表(20℃/4℃)波美度°Be'比重HNO3(%)每升酸含HNO3克数波美度°Be'比重HNO3(%)每升酸含HNO3克数0.53.67.511.315.018.522.123.524.926.227.528.729.831.032.133.234.335.336.337.238.11.00361.02561.05431.08421.11501.14691.18001.19341.20711.22051.23351.24631.25911.27191.28471.29751.31001.32191.33361.34491.3560１５1015202530323436384042444648505254565810.0451.28105.4162.6223.0286.7354.0381.9410.4439.4468.7498.5528.8559.6591.0622.8655.0687.4720.1753.1768.538.939.740.441.141.842.443.043.644.144.745.145.646.146.546.847.247.547.848.048.449.21.36671.37691.38661.39591.40481.41341.42181.42981.43751.44501.45211.45891.46551.47161.47731.48261.48731.49121.49521.50081.51296062646668707274767880828486889092949698100　820.0　853.7　887.4　921.3　955.3　989.4　1024.0　1058　1093　1127　1162　1196　1231　1266　1300　1334　1368　1402　1435　1471　1513Densities of Sulfuric AcidPercent Mass Sulfuric Acid to WaterDensity per g cm-3 100.0 %1.830594.0 %1.831290.0 %1.814484.0 %1.769380.0 %1.727274.0 %1.657470.0 %1.610564.0 %1.542160.0 %1.498754.0 %1.435150.0 %1.395244.0 %1.338640.0 %1.302834.0 %1.251830.0 %1.219124.0 %1.171420.0 %1.139814.0 %1.087410.0 %1.06615.0%1.03181.0 %1.0049浓度单位的换算公式： 1）当量浓度=1000.d.质量百分浓度/E 2）质量百分浓度=当量浓度E/1000.d 3）摩尔浓度=1000.d质量百分浓度/M 4）质量百分浓度=质量-体积浓度（毫克/升）/104.d 5）质量-体积浓度（mg/L）=104质量百分浓度 5、ppm是重量的百分率，ppm=mg/kg=mg/L 即:1ppm=1ppm=1000ug/L 1ppb=1ug/L=0.001mg 式中：E—溶质的克当量； d—溶液的比重； M—溶质的摩尔质量； 体积浓度是用每立方米的大气中含有污染物的体积数（立方厘米）或（ml/m3）来表示， 常用的表示方法是ppm，即1ppm=1立方厘米/立方米=10-6。

除ppm外，还有ppb和ppt， 他们之间的关系是： 1ppm=10-6=一百万分之一， 1ppb=10-9=十亿分之一 ， 1ppt=10-12=万亿分之一， 1ppm=103ppb=106ppt 。