Non Aques Solvent
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NON AQUEOUS SOLVENTSDr.rer.nat. Risfidian Mohadi, M.Si
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Introduction• Pelarut nonair anorganik adalah pelarut lainnya
selain air, yang bukan senyawa organik. contoh adalah amonia cair, sulfur dioksida cair, sulfuryl klorida dan fluridef sulfurychloride, fosforil klorida, dinitrogen tetroksida, triklorida antimon, bromin pentafluoride, hidrogen fluorida, asam sulfat murni dan asam anorganik lainnya. Pelarut ini digunakan dalam penelitian kimia dan industri untuk reaksi.
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Pertanyaan
• Apakah senyawa berikut termasuk non aqueous solvent ?
A. NH3 B.Liquid SO2 C.HF D.All
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Classification of solvents
• Klasifikasi pelarut berdasarkan proton.• Klasifikasi pelarut berdasarkan pelarut polar
dan non-polar.• Klasifikasi bahan pelarut pada Aqueous and
non- aqueous solvents
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protic solvents (e.g. HF, H2SO4, MeOH); aprotic solvents (e.g. N2O4, BrF3); coordinating solvents (e.g. MeCN, Et2O, Me2CO).
A protic solvent undergoes self-ionization to provide protons which are solvated.
If it undergoes self ionization, an aprotic solvent does so without the formation of protons.
Using non-aqueous solvents are limited many are highly reactive.
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• Protic or protoni solvents2NH3 NH⇌ 4
+ (ammonium) + NH2− (amide)
3HF H⇌ 2F+ + HF2- (hydrogen difluoride)
2H2SO4 H⇌ 3SO4+ + HSO4
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– (A)Acidic or protogenic solvents.H2SO4,HCL,CH3COOH,HCN.– (B) Basic or protophilic solvents.NH3, N2H4.
• Aprotic or non- protonic solvents.• C6H6,CHCl3,CCl4,SO2.
N2O4 NO⇌ + (nitrosonium) + NO3− (nitrate)
2SbCl3 SbCl⇌ 2+ (dichloroantimonium) + SbCl4
- (tetrachloroantimonate) POCl3 POCl⇌ 2
+ + POCl4-
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Pertanyaan
• Mana yang termasuk Amphiprotic solvents? 1 H2SO4 2 HCl 3 H2O 4 CHCl3
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1-Amphiprotic solvents
It is present hydrogen in solvents. Example.H2O
2-Polar and non-polar solvents.H2O,NH3,SO2. is polar.C6H6,CCl4. is non-polar.3-Aqueous and non aqueous.H2O.NH3,SO2,….etc
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Pertanyaan
• Mana yang termasuk protonic solvent? 1 HCN 2 CHCl3 3 SO2 4 CCl4
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Physical properties of solvents
• Melting point and boiling point.• Dielectric constant.• Viscosity.
V(V)Cr(VI)
Mn(VII)
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Reaksi Kimia
• Acid base reaction.• Precipitation reaction.• Redox reaction.• Solvation reaction.
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Pertanyaan
Agcl dengan Ba(NO3) membentuk …? Bacl2 solution.Bacl2 presipitation.AgNO3.No reaction.