作者geninhuang (C'est La Vie)
看板Chemistry
标题Re: 请问有没有人知道邻苯二甲酸氢钾(KHP)
时间Tue Dec 12 11:07:37 2006
※ 引述《aardvark0130 (哈..结果是师大地科)》之铭言：
: 想问一下有没有人知道KHP的药品性质@@?!
: 找了好久找不到@@"
结果我还是为了骗P币所以帮你查了 Orz
From Merck Index
7773. Potassium Biphthalate.
Phthalic acid potassium acid salt; potassium acid phthalate;
potassium hydrogen phthalate; acid potassium phthalate. C8H5KO4;
mol wt 204.22. C 47.05%, H 2.47%, K 19.14%, O 31.34%. HOOCC6H4COOK.
Prepd by half-neutralization of a phthalic anhydride soln: F. J. Welcher,
Organic Analytical Reagents vol. 2 (Van Nostrand, New York, 1947) pp 75-79.
Orthorhombic crystals, stable in air. d= 1.636.
Acid reaction; pH of 0.05M aq soln at 25 deg = 4.005 (glass electrode).
Sol in about 12 parts cold water, 3 parts boiling water; slightly sol in
alcohol.
USE: As primary standard for preparing volumetric alkali solns,
also as a buffer in pH determinations.
--
※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 140.120.9.243