常用酸、碱、盐溶液的活度系数(25.0 oC) Activity Coefficients of Common Acidic, Basic and Salt Solutions at 25.0 oC 序号(No.) 分子式(Moleecular formula) 溶液浓度（Concentrations of solutions）/（mol/L） 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1.0 1 AgNO3 0.734 0.657 0.606 0.567 0.536 0.509 0.464 0.429 2 AlCl3 0.337 0.305 0.302 0.313 0.331 0.356 0.429 0.539 3 Al2(SO4)3 0.035 0.0225 0.0176 0.0153 0.0143 0.0140 0.0149 0.0175 4 BaCl2 0.500 0.444 0.419 0.405 0.397 0.391 0.391 0.395 5 Ba(ClO4)2 0.524 0.481 0.464 0.459 0.462 0.469 0.487 0.513 6 BeSO4 0.150 0.109 0.0885 0.0759 0.0692 0.0639 0.0570 0.0530 7 CaCl2 0.518 0.472 0.455 0.448 0.448 0.453 0.470 0.500 8 Ca(ClO4)2 0.557 0.532 0.532 0.544 0.564 0.589 0.654 0.743 9 CdCl2 0.2280 0.1638 0.1329 0.1139 0.1006 0.0905 0.0765 0.0669 10 Cd(NO3)2 0.513 0.464 0.442 0.430 0.425 0.423 0.425 0.433 11 CdSO4 0.150 0.103 0.0822 0.0699 0.0615 0.0553 0.0468 0.0415 12 CoCl2 0.522 0.479 0.463 0.459 0.462 0.470 0.492 0.531 13 CrCl3 0.331 0.298 0.294 0.300 0.314 0.335 0.397 0.481 14 Cr(NO3)3 0.319 0.285 0.279 0.281 0.291 0.304 0.344 0.401 15 Cr2(SO4)3 0.0458 0.0300 0.0238 0.0207 0.0190 0.0182 0.0185 0.0208 16 CsBr 0.754 0.694 0.654 0.626 0.603 0.506 0.558 0.530 17 CsCl 0.756 0.694 0.656 0.628 0.606 0.589 0.563 0.544 18 CsI 0.754 0.692 0.651 0.621 0.599 0.581 0.554 0.533 19 CsNO3 0.733 0.655 0.602 0.561 0.528 0.501 0.458 0.422 20 CsOH 0.795 0.761 0.744 0.739 0.739 0.742 0.754 0.771 21 CsAc 0.799 0.771 0.761 0.759 0.762 0.768 0.783 0.802 22 Cs2SO4 0.456 0.382 0.338 0.311 0.291 0.274 0.251 0.235 23 CuCl2 0.510 0.457 0.431 0.419 0.413 0.411 0.412 0.419 24 Cu(NO3)2 0.512 0.461 0.440 0.430 0.427 0.428 0.438 0.456 25 CuSO4 0.150 0.104 0.083 0.070 0.062 0.056 0.048 0.042 26 FeCl2 0.520 0.475 0.456 0.450 0.452 0.456 0.475 0.508 27 HBr 0.805 0.782 0.777 0.781 0.789 0.801 0.832 0.871 28 HCl 0.796 0.767 0.756 0.755 0.757 0.763 0.783 0.809 29 HClO4 0.803 0.778 0.768 0.766 0.769 0.776 0.795 0.823 30 HI 0.818 0.807 0.811 0.823 0.839 0.860 0.908 0.963 31 HNO3 0.791 0.754 0.735 0.725 0.720 0.717 0.718 0.724 32 H2SO4 0.246 0.209 0.183 0.167 0.156 0.148 0.137 0.132 33 KBr 0.772 0.722 0.693 0.673 0.657 0.646 0.629 0.617 34 KCl 0.770 0.718 0.688 0.666 0.649 0.637 0.618 0.604 35 KCLO3 0.749 0.681 0.635 0.599 0.568 0.541 - - 36 K2CrO4 0.456 0.382 0.340 0.313 0.292 0.276 0.253 0.235 37 KF 0.775 0.727 0.700 0.682 0.670 0.661 0.650 0.645 38 K3Fe(CN)6 0.268 0.212 0.184 0.167 0.155 0.146 0.135 0.128 39 K4Fe(CN)6 0.139 0.0993 0.0808 0.0693 0.0614 0.0556 0.0479 - 40 KH2PO4 0.731 0.653 0.602 0.561 0.529 0.501 0.456 0.421 41 KI 0.778 0.733 0.707 0.689 0.676 0.667 0.654 0.645 42 KNO3 0.739 0.663 0.614 0.576 0.545 0.519 0.476 0.443 43 KOH 0.776 0.739 0.721 0.713 0.712 0.712 0.721 0.735 44 KAc 0.796 0.766 0.754 0.750 0.751 0.754 0.766 0.783 45 KSCN 0.769 0.716 0.685 0.663 0.646 0.633 0.614 0.599 46 K2SO4 0.436 0.356 0.313 0.283 0.261 0.243 - - 47 LiAc 0.784 0.742 0.721 0.709 0.700 0.691 0.688 0.689 48 LiBr 0.796 0.766 0.756 0.752 0.753 0.758 0.777 0.803 49 LiCl 0.790 0.757 0.744 0.740 0.739 0.743 0.755 0.774 50 LiClO4 0.812 0.794 0.792 0.798 0.808 0.820 0.852 0.887 51 LiNO3 0.788 0.752 0.736 0.728 0.726 0.727 0.733 0.743 52 LiOH 0.760 0.702 0.665 0.638 0.617 0.599 0.573 0.554 53 Li2SO4 0.468 0.389 0.361 0.337 0.319 0.307 0.289 0.277 54 MgCl2 0.528 0.488 0.476 0.474 0.480 0.490 0.521 0.569 55 MgSO4 0.150 0.107 0.087 0.076 0.068 0.062 0.054 0.049 56 MnCl2 0.518 0.471 0.452 0.444 0.442 0.445 0.457 0.481 57 MnSO4 0.150 0.105 0.085 0.073 0.064 0.058 0.049 0.044 58 NH4Cl 0.770 0.718 0.687 0.665 0.649 0.636 0.617 0.603 59 NH4NO3 0.740 0.677 0.636 0.606 0.582 0.562 0.530 0.504 60 (NH4)2SO4 0.423 0.343 0.300 0.270 0.248 0.231 0.206 0.189 61 NaAc 0.791 0.757 0.744 0.737 0.735 0.736 0.745 0.757 62 NaBr 0.782 0.741 0.719 0.704 0.697