过硫酸钠和过硫酸钾都属于过硫酸盐，无论是在日常生活还是化学工业中，这两种过硫酸盐都发挥着重要的作用的，那么这两种过硫酸盐之间的区别是什么呢?

　　Sodium persulfate and potassium persulfate both belong to persulfates, which play important roles in daily life and chemical industry. So what is the difference between these two persulfates?

　　一、过硫酸钠

　　1、 Sodium persulfate

　　过硫酸钠也叫高硫酸钠，是一种无机化合物，化学式为Na2S2O8，为白色晶状粉末，无臭味。溶于水，不溶于乙醇。在潮湿空气和高温中都能加速它的分解，而放出氧变为焦硫酸钠。

　　Sodium persulfate, also known as sodium persulfate, is an inorganic compound with the chemical formula Na2S2O8. It is a white crystalline powder with no odor. Soluble in water, insoluble in ethanol. It can accelerate its decomposition in humid air and high temperature, releasing oxygen to become sodium pyrosulfate.

　　过硫酸钠主要用途：

　　The main uses of sodium persulfate are:

　　1、主要用作漂白剂、氧化剂、乳液聚合促进剂。2、用于照相业的废液处理、胶片显影、定影剂。3、用作脲醛树脂的固化剂，固化速度快。4、用于印刷电路板表面金属的蚀刻剂。5、用于纺织脱浆剂。6、用于硫化染料发色剂。7、用于油井压裂液的破胶剂。8、用于电池去极化剂及有机高分子乳化聚合引发剂，如：作为乳胶或丙烯酸单体聚合液、醋酸乙烯、氯乙烯等产品的引发剂。9、用于清洁剂，可以有效去除水中杂质，过硫酸钠是清洗剂常用成分之一。10、用于剂，可有效杀灭水中细菌、真菌和病毒，还可有效去除水中异味，是水处理常用药物之一。11、环境处理中用来进行水处理（废水净化）、废气处理、有害物质氧化降解。12、用于制造高纯度盐酸和硫酸。13、用于制造化工原料，如硫酸钠、硫酸锌等。14、在农业中可修复受污染的土壤。

　　1. It is mainly used as bleaching agent, oxidant and lotion polymerization accelerator. 2. Used for waste liquid treatment, film development, and fixative in the photography industry. 3. Used as a curing agent for urea formaldehyde resin, with fast curing speed. 4. Etching agent used for the surface metal of printed circuit boards. 5. Used as a textile desizing agent. 6. Used as a coloring agent for sulfurized dyes. 7. A demulsifier used for oil well fracturing fluids. 8. Used as a depolarizing agent for batteries and an initiator for organic polymer emulsion polymerization, such as an initiator for latex or acrylic monomer polymerization solutions, vinyl acetate, vinyl chloride, and other products. 9. Used as a cleaning agent, it can effectively remove impurities from water, and sodium persulfate is one of the commonly used ingredients in cleaning agents. 10. Used as a disinfectant, it can effectively kill bacteria, fungi, and viruses in water, as well as remove odors from water. It is one of the commonly used drugs in water treatment. 11. Used in environmental treatment for water treatment (wastewater purification), exhaust gas treatment, and oxidation degradation of harmful substances. 12. Used for manufacturing high-purity hydrochloric acid and sulfuric acid. 13. Used for manufacturing chemical raw materials such as sodium sulfate, zinc sulfate, etc. 14. In agriculture, contaminated soil can be remediated.

　　二、过硫酸钾

　　2、 Potassium persulfate

　　过硫酸钠也叫高硫酸钠，是一种无机化合物，化学式为Na2S2O8，为白色晶状粉末，无臭味。溶于水，不溶于乙醇。在潮湿空气和高温中都能加速它的分解，而放出氧变为焦硫酸钠。

　　Sodium persulfate, also known as sodium persulfate, is an inorganic compound with the chemical formula Na2S2O8. It is a white crystalline powder with no odor. Soluble in water, insoluble in ethanol. It can accelerate its decomposition in humid air and high temperature, releasing oxygen to become sodium pyrosulfate.

　　过硫酸钠主要用途：

　　The main uses of sodium persulfate are:

　　1、主要用作漂白剂、氧化剂、乳液聚合促进剂。2、用于照相业的废液处理、胶片显影、定影剂。3、用作脲醛树脂的固化剂，固化速度快。4、用于印刷电路板表面金属的蚀刻剂。5、用于纺织脱浆剂。6、用于硫化染料发色剂。7、用于油井压裂液的破胶剂。8、用于电池去极化剂及有机高分子乳化聚合引发剂，如：作为乳胶或丙烯酸单体聚合液、醋酸乙烯、氯乙烯等产品的引发剂。9、用于清洁剂，可以有效去除水中杂质，过硫酸钠是清洗剂常用成分之一。10、用于剂，可有效杀灭水中细菌、真菌和病毒，还可有效去除水中异味，是水处理常用药物之一。11、环境处理中用来进行水处理（废水净化）、废气处理、有害物质氧化降解。12、用于制造高纯度盐酸和硫酸。13、用于制造化工原料，如硫酸钠、硫酸锌等。14、在农业中可修复受污染的土壤。

　　1. It is mainly used as bleaching agent, oxidant and lotion polymerization accelerator. 2. Used for waste liquid treatment, film development, and fixative in the photography industry. 3. Used as a curing agent for urea formaldehyde resin, with fast curing speed. 4. Etching agent used for the surface metal of printed circuit boards. 5. Used as a textile desizing agent. 6. Used as a coloring agent for sulfurized dyes. 7. A demulsifier used for oil well fracturing fluids. 8. Used as a depolarizing agent for batteries and an initiator for organic polymer emulsion polymerization, such as an initiator for latex or acrylic monomer polymerization solutions, vinyl acetate, vinyl chloride, and other products. 9. Used as a cleaning agent, it can effectively remove impurities from water, and sodium persulfate is one of the commonly used ingredients in cleaning agents. 10. Used as a disinfectant, it can effectively kill bacteria, fungi, and viruses in water, as well as remove odors from water. It is one of the commonly used drugs in water treatment. 11. Used in environmental treatment for water treatment (wastewater purification), exhaust gas treatment, and oxidation degradation of harmful substances. 12. Used for manufacturing high-purity hydrochloric acid and sulfuric acid. 13. Used for manufacturing chemical raw materials such as sodium sulfate, zinc sulfate, etc. 14. In agriculture, contaminated soil can be remediated.

　　二、过硫酸钾

　　2、 Potassium persulfate

　　过硫酸钾是一种无机化合物，化学式为K2S2O8，是一种白色结晶性粉末，溶于水、不溶于乙醇，具有强氧化性，常用作漂白剂、氧化剂，也可用作聚合反应引发剂，几乎不吸潮，常温下稳定性好，便于储存，具有方便和等优点。

　　Potassium persulfate is an inorganic compound with the chemical formula K2S2O8. It is a white crystalline powder that is soluble in water and insoluble in ethanol. It has strong oxidizing properties and is commonly used as a bleaching agent, oxidant, and polymerization initiator. It is almost non hygroscopic, stable at room temperature, easy to store, and has the advantages of convenience and safety.

　　过硫酸钾主要用途：

　　The main uses of potassium persulfate are:

　　1、主要用作剂和织物漂白剂。2、用作乙酸乙烯酯、丙烯酸酯类、丙烯腈、苯乙烯、氯乙烯等单体乳液聚合的引发剂（使用温度60～8 5℃），以及合成树脂聚合促进剂。3、过硫酸钾是电解法制过氧化氢的中间体，经分解生成过氧化氢。4、过硫酸钾用于钢及合金的氧化溶液中及铜的蚀刻与粗化处理，也可用于溶液杂质的处理。5、用作分析试剂，化工中用作氧化剂、引发剂。还用于胶片洗印，用作硫代硫酸钠脱除剂等。这两种过硫酸盐无论在外观，性状或用途上都有共通的地方，而这两者的主要区别在于作为聚合促进剂时的区别。

　　1. Mainly used as a disinfectant and fabric bleaching agent. 2. It is used as an initiator for lotion polymerization of vinyl acetate, acrylate, acrylonitrile, styrene, vinyl chloride and other monomers (use temperature: 60~85 ℃), and as an accelerator for synthetic resin polymerization. 3. Potassium persulfate is an intermediate in the electrolysis of hydrogen peroxide, which decomposes to produce hydrogen peroxide. 4. Potassium persulfate is used in the oxidation solution of steel and alloys, as well as in the etching and roughening treatment of copper. It can also be used for the treatment of impurities in the solution. 5. Used as an analytical reagent, used as an oxidant and initiator in chemical production. It is also used for film printing and as a sodium thiosulfate remover. These two types of persulfates share similarities in appearance, properties, and applications, with the main difference being their use as polymerization promoters.

　　三、过硫酸钠和过硫酸钾主要区别

　　3、 The main difference between sodium persulfate and potassium persulfate

　　这两种过硫酸盐无论在外观，性状或用途上都有共通的地方，而这两者的主要区别在于作为聚合促进剂时的区别。虽然它们都可以作为聚合促进剂，但是二者还是有区别的，因为过硫酸钾的的引发效果较好，所以过硫酸钾多用于实验室及高端制药业中，中低附加值的制造使用过硫酸钾成本太高，而过硫酸钠相对来说其引发效果要差一些，但是其要低，所以多用于工业中。

　　These two types of persulfates share similarities in appearance, properties, and applications, with the main difference being their use as polymerization promoters. Although they can both be used as polymerization promoters, there are still differences between the two because potassium persulfate has a better triggering effect, so it is mostly used in laboratories and high-end pharmaceutical industries. The cost of using potassium persulfate in low - and medium value added production is too high, while sodium persulfate has a relatively lower triggering effect, but its price is lower, so it is mostly used in industrial production.

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