欧美1314免费大片,日韩精品一区日韩在线,久久人人妻人人做人人爽,亚欧美一区二区三区

你好,歡迎訪問濟南金昊化工有限公司!

專注品質(zhì),信賴服務

我們用心做產(chǎn)品服務

咨詢熱線:

13655318786

公司新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>公司新聞過硫酸鈉在存放和使用過程中也必須注意

過硫酸鈉在存放和使用過程中也必須注意

來源:http://www.myxshdh.cn/ 日期:2019-12-05 發(fā)布人: 瀏覽次數(shù):0
  過硫酸鈉廠家屬于非易燃品,但由于能釋放氧而有助燃作用,因此必須在一定條件下儲存。必須存放在干燥、密閉的容器中,其次應避免陽光直射、熱源、潮濕等不利因素。另外,一些雜質(zhì)如臟物、鐵銹、少量金屬以及還原劑可能引起過硫酸銨的分解,在存放和使用過程中也必須注意。由于潮濕的過硫酸銨粉末及其水溶液有漂白和輕微的腐蝕作用,因此使用過程中應避免眼睛、皮膚和衣物直接與其接觸。
順酐廠家
  Sodium persulfate is a nonflammable product, but it has combustion supporting effect because it can release oxygen, so it must be stored under certain conditions. First of all, it must be stored in a dry and airtight container. Second, it should avoid direct sunlight, heat source, humidity and other adverse factors. In addition, some impurities such as dirt, rust, a small amount of metal and reducing agent may cause the decomposition of ammonium persulfate, which must also be noted in the storage and use process. As the wet ammonium persulfate powder and its aqueous solution have bleaching and slight corrosion, direct contact with eyes, skin and clothes should be avoided during use.
  過硫酸鈉又稱過二硫酸鈉。白色晶體或結(jié)晶性粉末。無嗅。無味。分子式Na2S2O8,相對分子質(zhì)量238.13。常溫下逐漸分解,加熱或在乙醇中可迅速分解,分解后放出氧氣并生成焦硫酸鈉。濕氣及鉑黑、銀、鉛、鐵、銅、鎂、鎳、錳等金屬離子或它們的合金均可促進分解,高溫(200℃左右)急劇分解,放出過氧化氫。易溶于水(20℃時70.4)。有強氧化性。對皮膚有強烈刺激性,長時間接觸皮膚,可引起過敏癥,操作時應注意。大鼠經(jīng)口LD50 895mg/kg。密封保存。實驗室通過加熱過硫酸鈉廠家與苛性鈉或碳酸鈉溶液,除去氨和二氧化碳而得過硫酸鈉。
  Sodium persulfate is also called sodium persulfate. White crystal or crystalline powder. Odorless. Tasteless. Molecular formula Na2S2O8, relative molecular weight 238.13. It can decompose gradually at room temperature, and decompose rapidly when heated or in ethanol. After decomposition, oxygen is released and sodium pyrosulfate is generated. Wet gas, platinum black, silver, lead, iron, copper, magnesium, nickel, manganese and other metal ions or their alloys can promote decomposition. At high temperature (about 200 ℃), they decompose rapidly and release hydrogen peroxide. Soluble in water (70.4 at 20 ℃). Strong oxidation. It has a strong irritant to the skin. Long time contact with the skin can cause allergies. Attention should be paid to the operation. The oral LD50 895mg / kg of rats. Sealed storage. The laboratory obtains sodium persulfate by heating the sodium persulfate manufacturer and caustic soda or sodium carbonate solution to remove ammonia and carbon dioxide.
  過硫酸鈉廠家具有強氧化性,可用作氧化劑,可將Cr3+、Mn2+等氧化成相應的高氧化態(tài)化合物,當有Ag+存在時,可促進上述氧化反應;利用其氧化性可用作漂白劑、金屬表面處理劑、化學試劑;醫(yī)藥原料;電池、乳液聚合反應的促進劑和引發(fā)劑。
  Sodium persulfate plant furniture has strong oxidability, can be used as oxidant, can oxidize Cr3+, Mn2+ and so on to the corresponding high oxidation state compounds, when Ag+ exists, it can promote the above oxidation reaction; its oxidation can be used as bleaching agent, metal surface treatment agent, chemical reagents, medicine raw materials, battery and emulsion polymerization accelerator and initiator.
 ?。?)硫酸銨水溶液電解氧化生成過硫酸銨,再與氫氧化鈉進行復分解反應,將副產(chǎn)的氨逐出后,再減壓濃縮、結(jié)晶、干燥,可得過硫酸鈉。(NH4)2S2O8+2NaOH→Na2S2O8+2NH3+2H2O。
  (1) sodium persulfate can be obtained by electrolysis oxidation of ammonium sulfate aqueous solution to produce ammonium persulfate, and then re decomposition reaction with sodium hydroxide. The by-product ammonia is ejected, and then concentrated, crystallized and dried under reduced pressure. (NH4)2S2O8+2NaOH→Na2S2O8+2NH3+2H2O。
 ?。?)電解冷硫酸可制得過二硫酸,再與堿作用,可制得過硫酸鈉。(I) 2HSO4--2e→H2S2O8 (II)H2S2O8+2NaOH→Na2S2O8+2H2O。
  (2) sodium persulfate can be prepared by electrolysis of cold sulfuric acid and alkali. (I) 2HSO4--2e→H2S2O8 (II)H2S2O8+2NaOH→Na2S2O8+2H2O。
  過硫酸鈉廠家是一種白色無味晶體、、或粉末或粉末,,被乙醇分解,常溫時穩(wěn)定性好定性好。常作強氧化劑使用常作強氧化劑使用,也可用作單體聚合引發(fā)劑也可用作單體聚合引發(fā)劑。它幾乎不吸潮,便于儲存便于儲存,使用方便使用方便。
  Sodium persulfate is a kind of white and tasteless crystal, powder or powder, which is decomposed by ethanol and has good stability and quality at room temperature. Often used as strong oxidant often used as strong oxidant, can also be used as monomer polymerization initiator can also be used as monomer polymerization initiator. It is almost non hygroscopic, convenient for storage, convenient for use, convenient and safe.

相關(guān)新聞
亚洲夫妻性生活免费视频| 国产美女精品人人做人人爽| 狠色婷婷久久一区二区三区| 丰满人妻少妇精品一区二区三区| 丝袜诱惑一区二区三区| 91日韩在线视频观看| 国产三级视频不卡在线观看| 中文字幕人妻一区二区免费| 欧美精品一区二区水蜜桃| 亚洲日本中文字幕视频在线观看| 高清国产日韩欧美熟女| 国产精品福利一二三区| 色婷婷视频免费在线观看| 国产毛片对白精品看片| 偷拍洗澡一区二区三区| 精品人妻一区二区三区免费| 亚洲国产一区精品一区二区三区色| 亚洲欧美日韩国产成人| 国产欧美日韩精品一区二区| 少妇特黄av一区二区三区| 69老司机精品视频在线观看| 狠狠做五月深爱婷婷综合| 国产日产欧美精品大秀| 邻居人妻人公侵犯人妻视频| 欧美国产日本免费不卡| 精品国产亚洲av久一区二区三区| 国产又黄又爽又粗视频在线| 99热九九热这里只有精品| 国产伦精品一区二区三区精品视频| 精品一区二区三区中文字幕| 国产精品午夜视频免费观看| 99久久国产精品成人观看| 日韩中文字幕有码午夜美女| 国产精品视频久久一区| 麻豆蜜桃星空传媒在线观看| 亚洲精品日韩欧美精品| 亚洲最大的中文字幕在线视频| 日本大学生精油按摩在线观看| 欧美日韩综合在线第一页| 欧美精品专区一区二区| 免费播放一区二区三区四区|