什么是EDTA产品？

What is EDTA product?

EDTA是乙二胺四乙酸的缩写。这是一种强有机酸。EDTA及其盐通常以晶体或白色粉末的形式，不易挥发，在水中具有高度溶解性。养殖户常用它来处理重金属，降低育苗场或者养虾场的水硬度。

EDTA is the abbreviation for ethylenediaminetetraacetic acid. This is a strong organic acid. EDTA and its salts are usually in the form of crystals or white powders, are not volatile and have high solubility in water. Farmers often use it to treat heavy metals and reduce the water hardness in seedling or shrimp farms.

1、EDTA的化学式

1. The chemical formula of EDTA

EDTA的化学式为C10H16N2O8，大约20年前，EDTA产品已经应用于许多领域。

The chemical formula of EDTA is C10H16N2O8. About 20 years ago, EDTA products were already used in many fields.

在工业中，EDTA被用作清洁剂，用于水，也用于纸张漂白的过程。

In industry, EDTA is used as a cleaning agent, for water disinfection, and also for the process of paper bleaching.

在农业生产，EDTA也有助于增加植物的营养。

In agricultural production, EDTA also helps to increase plant nutrition.

在美容领域，Edta在化妆品中也被发现，以保持产品的质量，并确保没有营养物质丢失。

In the field of beauty, Edta has also been found in cosmetics to maintain product quality and ensure that no nutrients are lost.

2、EDTA主要在哪个行业应用？

2. Which industry is EDTA mainly applied in?

EDTA可以大量行业，33%的洗涤剂行业，13%的造纸行业，18%的水体处理和其他行业。在水产养殖中，EDTA用于减少水体的硬度。

EDTA can be used in a large number of industries, including 33% in detergent industry, 13% in paper industry, 18% in water treatment and other industries. In aquaculture, EDTA is used to reduce the hardness of water bodies.

3、EDTA产品特性

3. EDTA Product Features

EDTA的特性是按照1：1的比例与金属形成络合物，与金属形成络合物的能力取决于水的pH值。如：Ca2+和Mg2+，需要大约10的pH值（sinax，2011年）。与金属形成络合物的能力也取决于络合的常数，这个常数越高，络合的可能性就越大。对于铅（Pb），K常数=1018。但对于Ca2+K~108。虽然sinax（2011）研究显示，如果水体中有大量Ca2+，Pb2+会与Ca2+竞争。

The characteristic of EDTA is to form complexes with metals in a 1:1 ratio, and its ability to form complexes with metals depends on the pH value of water. For example, Ca2+and Mg2+, a pH value of approximately 10 is required (sinax, 2011). The ability to form complexes with metals also depends on the constant of complexation, and the higher this constant, the greater the likelihood of complexation. For lead (Pb), the K constant is 1018. But for Ca2+K~108. Although sinax (2011) showed that if there is a large amount of Ca2+in water, Pb2+will compete with Ca2+.

EDTA迁移到土壤中，与微量金属和碱性金属（Na+、K+、Ca2+等）络合，然后增加金属的溶解度。特别是在酸性土壤中，EDTA降低了Fe3+的活性。在碱性环境中，EDTA主要与Ca2+和Mg2+组成，形成CAMgEDTA（EPA，2004），从而降低水的硬度。

EDTA migrates to the soil, complexes with trace metals and alkaline metals (Na+, K+, Ca2+, etc.), and then increases the solubility of the metals. Especially in acidic soils, EDTA reduces the activity of Fe3+. In alkaline environments, EDTA is mainly composed of Ca2+and Mg2+, forming CAMgEDTA (EPA, 2004), thereby reducing the hardness of water.

另一个注意事项是，EDTA分子中有10%的氮，所以使用EDTA，你可以帮助在环境中添加更多的氮，以刺激藻类的生长。

Another note is that EDTA molecules contain 10% nitrogen, so using EDTA can help add more nitrogen to the environment to stimulate the growth of algae.

另一方面，根据SiLLanpaa（1997）的研究显示，Ca3（PO4）2和FePO4通常是不溶于水，使水体损失大量的PO43，它限制藻类的生长，使环境难以形成水色。当使用EDTA时，它与Ca和Fe复合，以水溶性的形式释放PO43，从而刺激藻类的生长（Oviedo和Rodriguez，2003）。更多相关事项就来我们网站http://www.jinhao360.com咨询！

On the other hand, according to SiLLanpaa's (1997) research, Ca3 (PO4) 2 and FePO4 are usually insoluble in water, causing a significant loss of PO43 in the water, which limits the growth of algae and makes it difficult for the environment to form water color. When using EDTA, it combines with Ca and Fe to release PO43 in a water-soluble form, thereby stimulating the growth of algae (Oviedo and Rodriguez, 2003). For more related matters, come to our website http://www.jinhao360.com consulting service