過(guò)硫酸銨是一種白色、無(wú)味晶體，常作強(qiáng)氧化劑使用，(NH4)2S2O8無(wú)色單斜晶體，有時(shí)略帶淺綠色，比重1.982，在120攝氏度分解，放出氧氣，生成焦硫酸銨(NH4)2S2O7。干燥時(shí)穩(wěn)定，含水時(shí)逐漸分解，放出氧氣和臭氧。溶于水，加熱即分解。用作試劑、氧化劑、脫臭劑、漂白劑等。由濃硫酸銨溶液電解氧化后結(jié)晶而制得也可用作單體聚合引發(fā)劑。它幾乎不吸潮，由于能達(dá)到很高的純度而具有特別好的穩(wěn)定性，便于儲(chǔ)存。另外，它還具有使用方便、等優(yōu)點(diǎn)。用途：過(guò)硫酸銨是乳膠或丙烯酸單體聚合液、醋酸乙烯、氯乙烯等產(chǎn)品的引發(fā)劑，同時(shí)也是苯乙烯、丙烯腈、丁二烯等膠體發(fā)生共聚作用的引發(fā)劑。作為一種強(qiáng)氧化劑有以下用途：
Ammonium persulfate is a white, odorless crystal, often used as a strong oxidant. (NH4) 2S2O8 colorless monoclinic crystal, sometimes slightly greenish, with a specific gravity of 1.982, decomposes at 120 degrees Celsius, releases oxygen, and generates ammonium pyrosulfate (NH4) 2S2O7. It is stable when it is dry, and gradually decomposes when it contains water, releasing oxygen and ozone. Dissolve in water and decompose when heated. Used as reagent, oxidant, deodorant, bleach, etc. It can also be used as initiator for monomer polymerization. It hardly absorbs moisture, and has excellent stability and is convenient for storage because of its high purity. In addition, it also has the advantages of convenient use and safety. Use: ammonium persulfate is the initiator of latex or acrylic monomer polymerization solution, vinyl acetate, vinyl chloride and other products, and is also the initiator of copolymerization of styrene, acrylonitrile, butadiene and other colloids. As a strong oxidant, it has the following uses:
(1)用于金屬表面的清潔和酸洗。
(1) For cleaning and pickling of metal surfaces.
(2)用于加快低濃度福爾馬林粘合劑的處理過(guò)程。
(2) It is used to speed up the treatment process of low concentration formalin adhesive.
(3)是淀粉的調(diào)節(jié)劑，并應(yīng)用于粘和劑和涂料中。
(3) It is a regulator for the production of starch and is used in the production of adhesives and coatings.
(4)用于硫酸銨的精制。
(4) Used for refining ammonium sulfate.
(5)是染發(fā)劑的基本成分之一，起脫色作用。
(5) It is one of the basic components of hair dyes and plays a role in decolorization.
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