60239

氟化钾

puriss. p.a., ≥99.0% (F)

• 線性公式: KF
• CAS號碼: 7789-23-3
• 分子量：: 58.10
• Beilstein: 3902818
• EC號碼: 232-151-5
• MDL號碼: MFCD00011398
• 分類程式碼代碼: 12352302
• PubChem物質ID: 329758836

屬性

• 等級: puriss. p.a.
• 化驗: ≥99.0% (F)
• 形狀: powder or crystals
• 雜質: ≤0.01% free acid (as HF); ≤0.01% free alkali (as KOH); ≤0.1% potassium fluoro silicate (K₂SiF₆)
• mp: 858 °C (lit.)
• 負離子痕跡: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 正離子痕跡: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤5000 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES 字串: [F-].[K+]
• InChI: 1S/FH.K/h1H;/q;+1/p-1
• InChI 密鑰: NROKBHXJSPEDAR-UHFFFAOYSA-M

描述

一般說明

Potassium fluoride (KF) on activated alumina is a highly reactive catalyst (basic in nature) for various organic reactions. High reactivity is due to the formation of potassium hexafluoroaluminiate, potassium hydroxide and potassium aluminate on the interaction of its fluoride ion with alumina. Celite coated with potassium fluoride participates in various hydrogen-bond-mediated reactions. Potassium fluoride on basic alumina in acetonitrile has been employed for the ultrasound-assisted deprotection of tert-butyldimethylsilyl ethers of phenols. Neutralization reaction of hydrofluoric acid with KOH or postassium carbonate affords KF.

應用

用于研究两性聚合物凝胶的离子特异性溶胀和去溶胀的多功能氟离子源。贵金属在氟化氢中的室温氧化, 以及碱金属卤化物聚合物中离子的电子极化率的测量。

其他說明

通过熔融作用分解硅酸盐的试剂

安全資訊

• 象形圖: GHS06,GHS05
• 訊號詞: Danger
• 危險聲明: H301 + H311 + H331,H318
• 防範說明: P261 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338
• 危險分類: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1
• 儲存類別代碼: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable