
氟硫酸 - 百度百科
氟硫酸的迅速水解就产生H2SO4与HF。 主要用在分支烷与 芳香化合物 的烷基化反应,又能催化单烯的聚合,制造有用的高分子。 溶解性:溶于水,溶于乙酸、硝基苯、乙醚,不溶于 四氯化碳 、 二硫化碳 [1]。 稳定性:氟磺酸与水发生反应生成 HF 和H2SO4。 氟磺酸是最强的液态酸之一,也是一种强 氟化剂。 纯净的氟磺酸不腐蚀玻璃。 氟硫酸蒸馏时,可用普通的玻璃器皿在常压或减压下蒸馏。 氟硫酸毒性比 三氟甲磺酸 大,应绝对避免与之接触或吸入。 [1] 1.用 氟氢化钾 与 发 …
Fluorosulfuric acid - Wikipedia
Fluorosulfuric acid (IUPAC name: sulfurofluoridic acid) is the inorganic compound with the chemical formula HSO3F. It is one of the strongest acids commercially available. It is a tetrahedral molecule and is closely related to sulfuric acid, H2SO4, substituting a fluorine atom for one of the hydroxyl groups.
Chemistry – A European Journal
2010年1月14日 · Protonated magic acid: Fluorodihydroxyoxosulfonium hexafluoroantimonate, [H 2 SO 3 F] + [SbF 6] −, is formed when SO 3 reacts at −35 °C with the superacid HF/SbF 5. The in situ formed HSO 3 F (see graphic) is protonated by HF/SbF 5, which is conclusive evidence that the superacidic HF/SbF 5 system is more acidic than magic acid (HSO 3 F/SbF 5).
Why is magic acid a superacid? - Chemistry Stack Exchange
2014年8月19日 · Does the highly partially positive Sb central atom play a role in stabilizing negative charge on the solute after the solute has been deprotonated? Fluorosulfuric acid is already stronger than H2SO4 - that means pure HSO3F is already a superacid. Addition of even small amount of SbF5 makes it much stronger, still.
Sulfurous acid - Wikipedia
Sulfuric (IV) acid (United Kingdom spelling: sulphuric (IV) acid), also known as sulfurous (UK: sulphurous) acid and thionic acid, [citation needed] is the chemical compound with the formula H2SO3. Raman spectra of solutions of sulfur dioxide in water show only signals due to the SO2 molecule and the bisulfite ion, HSO− 3. [2] .
H2SO3F molar mass
逐步计算摩尔质量; 首先,计算 h 2 so 3 f 中每个原子的数量: h: 2, s: 1, o: 3, f: 1. 然后,查找元素周期表中每个元素的原子量: h: 1.00794, s: 32.065, o: 15.9994, f: 18.9984032 现在,计算原子数与原子量的乘积之和:
H2SO3F molar mass - Chemical Portal
Molar mass calculator computes molar mass, molecular weight and elemental composition of any given compound.
高等无机化学第二章 非水溶剂 - 百度文库
O 可自电离: 2 HSO3F = H2SO3F+ + SO3F加入SbF5可减少SO3F-浓度,即增加H2SO3F+浓度, 因此可形成一个更强的酸. HSO3F—SbF5体系: 1932, L.P.Hammett提出酸度函数Ho。可描述高 浓度酸溶液的酸度。
高等有机化学酸碱理论 - 百度文库
h2so3f+ + 显出超强酸性 so3f- 如果氟磺酸中加入作为路易斯酸的五氟化锑,则酸性会大大加强,它们之间发生 如下反应: 2hso3f + 2sbf5 比如: cc + h2o h+ cc cc h oh cc 极 度缓慢 h oh2-h+ oh cc cc h h 很快反应 由于烯的共轭酸碳正离子是比中性底物更活泼的物种,所以h+起了 ...
北师大无机化学第二章 VIA(16)第三节硫属元素 - 百度文库
H2SO3F++[SbF5(OSO2F)]- 7 硫的卤化物和卤氧化物 • S2Cl2; SCl2;由熔融硫直接氯化,重要化 工原料 • Cl2+2S=S2Cl2; • S2Cl2+Cl2=2SCl2 (FeCl3催化剂) • SF6:硫在氟气氛下燃烧 • SF4( …