Ammonium persulfate - properties

無色單斜結(jié)晶或白色結(jié)晶性粉末。熔點(diǎn)120℃（分解），d 1_982。具有很強(qiáng)的氧化性和腐蝕性。完全干燥的過硫酸銨不易分解，潮濕的過硫酸銨會(huì)逐漸分解，放出氧氣和臭氧。易溶于水，其水溶液在室溫下也會(huì)分解。與還原劑、有機(jī)物、易燃物或金屬粉末等混合可形成爆炸性混合物。

Colorless monoclinic crystal or white crystalline powder. Melting point 120 ℃ (decomposition), d 1_ 982。 It has strong oxidation and corrosion. Completely dry ammonium persulfate is not easy to decompose, while wet ammonium persulfate will gradually decompose, giving off oxygen and ozone. Easily soluble in water, its aqueous solution will also decompose at room temperature. It can be mixed with reducing agent, organic substance, inflammable substance or metal powder to form explosive mixture.

過硫酸銨 - 制法

Ammonium persulfate preparation method

利用電解法，由硫酸銨和硫酸配制成電解液，經(jīng)除雜質(zhì)后進(jìn)行電解，HS04在陽極放電生成過二硫酸，再與硫酸銨反應(yīng)得到過硫酸銨。當(dāng)陽極液中過硫酸銨含量達(dá)到一定濃度后，經(jīng)過濾、晶、離心分離、干燥即可。

Electrolytic method is used to prepare electrolyte from ammonium sulfate and sulfuric acid. After impurities are removed, the electrolyte is electrolyzed. HS04 generates persulfuric acid in anodic discharge, and then reacts with ammonium sulfate to obtain ammonium persulfate. When the content of ammonium persulfate in the anode solution reaches a certain concentration, it can be filtered, crystallized, centrifuged and dried.

過硫酸銨 - 用途

Ammonium persulfate - use

用作四氟乙烯聚合時(shí)的引發(fā)劑。也是某些水溶性單體如丙烯酸及其酯、丙烯酰胺、醋酸乙烯酯等聚合或共聚的引發(fā)劑。還可用作漂白劑、脫臭劑、氧化劑、蛋白試劑和鋼鐵的分析試劑。也是制造過硫酸鹽和雙氧水的原料。

It is used as an initiator in the polymerization of tetrafluoroethylene. It is also an initiator for polymerization or copolymerization of some water-soluble monomers, such as acrylic acid and its ester, acrylamide, vinyl acetate, etc. It can also be used as bleach, deodorant, oxidant, protein reagent and analytical reagent for steel. It is also the raw material for manufacturing persulfate and hydrogen peroxide.

過硫酸銨 - 安全性

Ammonium persulfate - safety

大鼠經(jīng)口LDso：820mg/kg。助燃，具腐蝕性、剌激性，可致人體灼傷。對(duì)皮膚黏膜有刺激性和腐蝕性。吸入后引起鼻炎、喉炎、氣短和咳嗽等。眼、皮膚接觸可引起強(qiáng)烈刺激、疼痛甚至灼傷。口服引起腹痛、惡心和嘔吐。工作人員應(yīng)作好防護(hù)，若不慎觸及皮膚和眼睛，應(yīng)立即用大量流動(dòng)清水沖洗。貯存于陰涼、干燥倉庫內(nèi)，遠(yuǎn)離火種、熱源。不可與有機(jī)物、還原劑、易燃易爆等物品混貯混運(yùn)。

Oral LDso of rats: 820mg/kg. Combustion supporting, corrosive and irritating, which may cause burns to human body. It is irritant and corrosive to skin and mucous membrane. Inhalation may cause rhinitis, laryngitis, shortness of breath and cough. Contact with eyes and skin may cause strong irritation, pain and even burns. Oral administration causes abdominal pain, nausea and vomiting. The staff should take good care of protection. If they accidentally touch the skin and eyes, they should immediately wash them with a large amount of flowing water. Store in a cool, dry warehouse away from kindling and heat sources. It shall not be stored and transported together with organic substances, reducing agents, inflammables and explosives.