- 主题:EDTA二钠与EDTA钠盐的区别? (转载)
【 以下文字转载自 Chemistry 讨论区 】
发信人: ggXP (hello), 信区: Chemistry
标 题: EDTA二钠与EDTA钠盐的区别?
发信站: BBS 水木清华站 (Fri Mar 11 22:53:50 2005), 站内
发信人: ggXP (hello), 信区: LifeScience
标 题: EDTA二钠与EDTA钠盐的区别?
发信站: BBS 水木清华站 (Fri Mar 11 19:40:44 2005), 站内
今天去拿药品时,我写着要EDTA,但是他们只有EDTA二钠与EDTA钠盐,
EDTA就EDTA啦,为什么还有EDTA二钠与EDTA钠盐,我当时就不知道怎么选好。
请问这两者有什么区别阿?谢谢
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FROM 202.192.159.*
Ethylenediaminetetraacetic acid (EDTA) is a tetrabasic acid. If two H+ are displaced by 2 Na+,EDTA became ethylene diamine tetraacetic disodiuam(EDTA-Na2). The sodium salt of EDTA you mention, i think it maybe is monosoidum salt(EDTA-Na). If you use the EDTA as chelating agent, both are ok, while the ininital pH maybe are different.
Sorry can not input chinese.
【 在 ggXP (hello) 的大作中提到: 】
: 【 以下文字转载自 Chemistry 讨论区 】
: 发信人: ggXP (hello), 信区: Chemistry
: 标 题: EDTA二钠与EDTA钠盐的区别?
: ...................
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FROM 143.89.160.*
initial.
hehe :)
【 在 allgone (戒网!!!) 的大作中提到: 】
: Ethylenediaminetetraacetic acid (EDTA) is a tetrabasic acid. If two H+ are displaced by 2 Na+,EDTA became ethylene diamine tetraacetic disodiuam(EDTA-Na2). The sodium salt of EDTA you mention, i think it maybe is monosoidum salt(EDTA-Na). If you us
: Sorry can not input chinese.
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FROM 61.172.143.*