Thekeydifferencebetween disodium EDTA and tetrasodium EDTA is thatdisodium EDTA has aph低于7while tetrasodium EDTA has a pH greater than 7。
EDTA是一个chelating agent。Therefore, it has the potential to bind with metal ions such ascalcium and magnesium。EDTA代表乙二胺二乙酸。它导致金属离子的隔离。因此,EDTA与金属离子结合并形成稳定的EDTA金属复合物。此外,EDTA有两种形式,即EDTA和四寄生虫EDTA。两种类型都是EDTA的钠盐。disodium edta含有2个钠阳离子,而四钠eDTA每个分子中包含4个钠阳离子。
内容
1.Overview and Key Difference
2.What is Disodium EDTA
3.什么是四心脏EDTA
4.EDTA和四心经EDTA之间的相似之处
5.Side by Side Comparison – Disodium EDTA vs Tetrasodium EDTA in Tabular Form
6。概括
什么是disodium edta?
Disodium EDTA is a form of EDTA with two sodium cations. It is a heavy metal chelating agent and present as a dry powder. The general structure of EDTA contains four negatively charged oxygen atoms. Out of the four, two oxygen atoms of EDTA remain combined with two sodium cations to form disodium EDTA. Therefore, disodium EDTA is a synthesized byproduct of EDTA. Its molecular mass is about 336.2 g/mol.
Ethylenediamine, formaldehyde and sodium cyanide participate in the synthesis of EDTA. Therefore, the sodium cyanide is the source of sodium ions present in disodium EDTA. The pH of disodium EDTA ranges between 4-6. However, it does not exceed pH 7.
Disodium EDTA is added in minute concentrations to cosmetic products including shampoos to increase shelf life and foaming properties. Therefore, disodium EDTA is present in the products that we use in our day to day lives such as shampoos, hair dyes, shower gels, lotions, etc. It also has a use in clinical therapeutic such as chelation therapy and anticoagulation. Furthermore, disodium EDTA is a good preservative as well.
什么是四心脏EDTA?
Tetrasodium EDTA is a form of EDTA with four sodium cations. All four negatively charged oxygen atoms of EDTA are bonded to four sodium cations to form tetrasodium EDTA compound. Similar to disodium EDTA, Tetrasodium EDTA is a by-product of EDTA synthesis process. The molar mass of tetrasodium EDTA is 380.1 g/mol. It is a colourless compound available in both dry powder and liquid form. Tetrasodium EDTA is slightly soluble in ethanol. Its pH ranges from 10-11.
Tetrasodium EDTA is applied at industrial scale as a water softener and a preservative. Similar to disodium EDTA, it has a use in manufacturing cosmetics and personal care products. Tetrasodium EDTA has a higher potential in sequestration of metal ions. It binds with metal ions and prevents the reaction of metal ions with other ingredients of the product. Therefore, the addition of it increases the product shelf life.
What are the Similarities Between Disodium EDTA and Tetrasodium EDTA?
- Both compounds are sodium salts of EDTA and are byproducts of EDTA synthesis process.
- They are used as preservatives, personal care products and cosmetics.
- 此外,EDTA和四钠EDTA均导致金属离子的固相。
What is the Difference Between Disodium EDTA and Tetrasodium EDTA?
EDTA和四心脏EDTA是EDTA的两种形式。EDTA和四心dium EDTA之间的关键差异是每种化合物的pH值。dista dodium范围为4至6之间的pH值,而四心depa的pH值范围为10至11。此外,disodium eDta具有两个钠原子,而四心则具有四个钠原子。因此,它也是EDTA和四钠EDTA之间的差异。
此外,我们还可以根据其分子质量来确定disodium edta和tetrasodium eDTA之间的差异。EDTA的分子质量为336.2 g/mol,而四钠的分子质量为380.1 g/mol。
概括– Disodium EDTA vs Tetrasodium EDTA
EDTA is Ethylenediaminetetraacetic acid. It results in sequestration of metal ions. It binds with metal ions and forms a stable EDTA metal complex. Accordingly, the two forms of EDTA are disodium EDTA and tetrasodium EDTA. The key difference between disodium EDTA and tetrasodium EDTA is that disodium EDTA has a pH lower than 07 while tetrasodium EDTA has a pH greater than 07. Furthermore, disodium EDTA contains 2 sodium cations while tetrasodium EDTA contains 4 sodium cations per molecule. Both compounds are sodium salts of EDTA and are byproducts of EDTA synthesis process. Thus, this summarizes the difference between disodium EDTA and tetrasodium EDTA.
Reference:
1.阿玛拉。“EDTA二钠:你需要知道的•。” BambooCore Fitness, 20 Nov. 2018.Available here
2.“ EDTA:用途,副作用,相互作用,剂量和警告。”WebMD,WebMD。Available here
Image Courtesy:
1. Andel(Talk)的“ Disodium Edta” - 自己的作品,(公共领域)通过Commons Wikimedia
2.”Tetrasodium EDTA”By User:Edgar181 – Own work, (Public Domain) viaCommons Wikimedia
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