| 查看: 144 | 回复: 1 | |||
| 当前主题已经存档。 | |||
| 【悬赏金币】回答本帖问题，作者liangduoqiang将赠送您 50 个金币 | |||
liangduoqiang铁虫 (正式写手)
|
[求助]
[取消求助]倾家荡产求高温下碘化银的溶解度
|
||
|
[求助]倾家荡产求高温下碘化银的溶解度或溶度积? 100~200范围,越广越好. [ Last edited by liangduoqiang on 2008-3-27 at 11:35 ] |
回复此楼» 猜你喜欢
本人考085602 化学工程 专硕
已经有23人回复
-
求调剂院校信息
已经有4人回复
-
085600材料与化工306
已经有4人回复
-
286求调剂
已经有10人回复
-
328求调剂，英语六级551，有科研经历
已经有9人回复
-
一志愿北京化工大学070300 学硕336求调剂
已经有4人回复
-
286分人工智能专业请求调剂愿意跨考！
已经有8人回复
-
资源与环境 调剂申请(333分)
已经有5人回复
-
280求调剂
已经有12人回复
-
269专硕求调剂
已经有5人回复
nucleus01
至尊木虫 (著名写手)
小木虫北庭节度使
- 应助: 0 (幼儿园)
- 贵宾: 0.11
- 金币: 15488.1
- 红花: 1
- 帖子: 2930
- 在线: 108.4小时
- 虫号: 165700
- 注册: 2006-01-13
- 性别: GG
- 专业: 物理
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
liangduoqiang(金币+10,VIP+0):thanks
liangduoqiang(金币+10,VIP+0):thanks
|
查到一点： Ag+ +X-.fwdarw.AgX where X stands for a halide ion. In this relation, most of the silver and halide ions are in insoluble form at equilibrium. However, the equilibrium is dynamic, and in particular an exchange of iodide ions still occurs between the left and right hand sides of the equilibrium. At any given temperature, the activities of the silver and halide ions at equilibrium satisfy the equation KS =[Ag+ ][X- ] where KS is the solubility product of the silver halide. In practice, the negative logarithms of the silver and halide ion activities (pAg and pX) are used, which are linked to KS by the equation -logKS =pAg+pX Hence, the higher the value of -log KS is, the lower is the solubility of the halide. Some -log Ks values of silver halides are given in the Table below. TABLE I -log KS Temperature ° C. AgCl AgBr AgI 40 9.2 11.6 15.2 50 8.9 11.2 14.6 60 8.6 10.8 14.1 80 8.1 10.1 13.2 This table shows for example that at 40° C. silver chloride is a million times more soluble in water than silver iodide. This table also shows that the solubility of halides is temperature-dependent. This solubility also depends on the vAg (or the pAg). The method of the invention allows iodide to be introduced into the tabular grains at high iodide jet flow rates that in the methods of prior art would shatter |
2楼2008-03-27 09:15:07
