少妇被猛男粗大的猛进出,亚洲 欧美 动漫 少妇 自拍,日韩免费视频,青春草在线视频免费观看

訂購電話:4001650900

Barium hydroxide

MDL:
--MFCD00149152
Molecular Formula:
Ba(OH)2?8H2O
Molecular Weight:
315.46
Alias:
氫氧化鋇 Barium hydroxide octahydrate
Product order:
Name Specifications Packing Price Delivery
Barium hydroxide ACS 500g RMB 63.8 Consulting service
Barium hydroxide CP 500g RMB 30.8 Consulting service
Barium hydroxide AR 500g RMB 38.5 Consulting service
Character:
無色透明或白色結(jié)晶,強堿性,易溶于水及甲醇,微溶于乙醇,不溶于丙酮。從空氣中吸收二氧化碳變成碳酸鹽后,則不能完全溶于水。在硫酸干燥器中能失去7分子結(jié)晶水,約在780℃失去全部結(jié)晶水。
Quality Standard:
   
   HG/T2629-94
項目ltem                                     分析純     化學純
                           (AR)            (CP)
含量[Ba(OH)2?8H2O],%                          ≥98.0          97.0
碳酸鋇(BaCO3)Barium carbonate,%               ≤1.0           2.0
澄清度試驗Clarity                             合格      合格
鹽酸不溶物lnsoluble in hydrochl-oric acid,%   ≤0.005         0.05
氯化物(CI)Chloride,%                          ≤0.003         0.02
硫化物(S)Sulfile,%                            ≤0.0002        0.001
鈣(Ca)Calcium,%                               ≤0.02          0.05
鐵(Fe)Iron,%                                  ≤0.001         0.005
鍶(Sr)Strontiun,%                             ≤0.08          0.15
鉛(Pb)Lead,%                                  ≤0.001         0.002
硫酸不沉淀物Substances not prici-
pitatd by sulfuric acid,%                     ≤0.02          0.05


ACS級
項目名稱Item                                               ACS Grade
含量Assay                                                     ≥98%
碳酸鹽(以BaCO3計)Carbonate                                    ≤2.0%
稀鹽酸不溶物Insoluble in dilute hydrochloric acid             ≤0.01%
氯化物(Cl)Chloride(Cl)                                        ≤0.001%
硫化物(以S計)Sulfide(S)                                       Passes test
鈣(Ca)Calcium(Ca)                                             ≤0.05%
鉀(K)Potassium(K)                                             ≤0.01%
鈉(Na)Sodium(Na)                                              ≤0.01%
鍶(Sr)Strontium(Sr)                                           ≤0.8%
重金屬(以Pb計)Heavy metals(as Pb)                             ≤5ppm
鐵(Fe)Iron(Fe)                                                ≤0.001%

Storage:
密封干燥保存。
用途  測定空氣中的二氧化碳,精制糖及動物油,鍋爐用水清洗劑。用于化工、輕工、醫(yī)藥等行業(yè),主要用于制造鋇鹽,石油工業(yè)中多效能添加劑等。
上海紫一試劑廠   ? 2025 All Rights Reserved      備案號:滬ICP備19037119號-1     
網(wǎng)站地圖:
試劑CAS試劑分類試劑產(chǎn)品實驗儀器耗材分類實驗儀器耗材新聞資訊
   滬公網(wǎng)安備 31012002003055號