Through this period of understanding, I believe you are no stranger to PTA, but for customers who want to know more about this product, these contents are not enough.

今天小编就将关于精对苯二甲酸方面的知识与大家分享一下，希望引起大家的重视，让大家对精对苯二甲酸有一个深层次的了解。这样大家在购买使用精对苯二甲酸时也能做到心中有数，不慌不忙，希望对大家有所启发与帮助。请看下面的具体阐述吧：

Today, I will share the knowledge about PTA with you, hoping to arouse your attention and let you have a deep understanding of PTA. In this way, you can have a clear idea when purchasing and using PTA. I hope it will be helpful to you. Let's see the following details:

精对苯二甲酸亲油性较大，易穿透细胞膜进入细胞体内，干扰细胞膜的通透性，抑制细胞膜对氨基酸的吸收；进入细胞体内电离酸化细胞内的碱储，并抑制细胞的呼吸酶系的活性，阻止乙酰辅酶A缩合反应，从而起到食品防腐的目的。

PTA is more lipophilic, easy to penetrate into the cell membrane, interfere with the permeability of the cell membrane, inhibit the absorption of amino acids by the cell membrane, ionize and acidify the alkali storage in the cell, inhibit the activity of respiratory enzyme system, and prevent the condensation reaction of acetyl coenzyme A, so as to achieve the purpose of food preservation.

精对苯二甲酸用于化学分析用试剂;用于医药工业和植物遗传研究 苯甲酸又称为安息香酸，故苯甲酸钠又称安息香酸钠。苯甲酸在常温下难溶于水，在空气（特别是热空气）中微挥发，有吸湿性，大约常温下0.34g/100ml；但溶于热水；也溶于乙醇、氯仿和非挥发性油。而苯甲酸钠在都使用苯甲酸钠；苯甲酸和苯甲酸钠的性状和防腐性能都差不多。

Purified terephthalic acid is used as chemical analysis reagent; it is used in pharmaceutical industry and plant genetic research. Benzoic acid is also known as benzoic acid, so sodium benzoate is also known as sodium benzoate. Benzoic acid is difficult to dissolve in water at room temperature, slightly volatilized in air (especially in hot air), hygroscopic, about 0.34g/100ml at room temperature; but it is soluble in hot water; it is also soluble in ethanol, chloroform and non-volatile oil. Sodium benzoate is widely used in many industries; the properties and corrosion resistance of benzoic acid and sodium benzoate are similar.