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时间:2020-06-13
《硝酸浓度与比重对照表.doc》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、一、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0.53.67.511.315.018.522.123.524.926.227.528.729.831.032.133.234.335.336.337.238.11.00361.02561.05431.08421.11501.14691.18001.19341.20711.22051.23351.24631.25911.27191.28471.29751.31001.32191.33361.34491.3560151015202
2、530323436384042444648505254565810.0451.28105.4162.6223.0286.7354.0381.9410.4439.4468.7498.5528.8559.6591.0622.8655.0687.4720.1753.1768.538.939.740.441.141.842.443.043.644.144.745.145.646.146.546.847.247.547.848.048.449.21.36671.37691.38661.39591.40481.41341.42181.42981.43751.44501.45211.
3、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 1513 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/mlW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(6
4、3g/mol)二、硫酸质量分数浓度、密度对照表硫酸溶液质量百分浓度密度g/cm-3100.0%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%1.0049三、浓度单位的换算公式:1)当量浓
5、度=1000.d.质量百分浓度/E2)质量百分浓度=当量浓度E/1000.d3)摩尔浓度=1000.d质量百分浓度/M4)质量百分浓度=质量-体积浓度(毫克/升)/104.d5)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/L1ppb=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pp
6、m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
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