Ester (kimia): Perbedaan antara revisi
Konten dihapus Konten ditambahkan
k ←Suntingan 114.79.12.121 (bicara) dibatalkan ke versi terakhir oleh 202.146.253.15 |
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[[Berkas:Ester-general.png|thumb|Formula umum ester karboksilat]] |
[[Berkas:Ester-general.png|thumb|Formula umum ester karboksilat]] |
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Dalam [[kimia]], '''ester''' adalah suatu [[senyawa organik]] yang terbentuk melalui penggantian satu (atau lebih) atom [[hidrogen]] pada [[gugus fungsional|gugus]] [[karboksil]] dengan suatu gugus organik (biasa dilambangkan dengan '''R''''). Asam oksigen adalah suatu asam yang [[molekul]]nya memiliki gugus [[hidroksida|-OH]] yang hidrogennya (H) dapat menjadi [[ion]] H+. |
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== Senyawa-senyawa ester == |
== Senyawa-senyawa ester == |
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Banyak ester memiliki bau seperti bau buah-buahan, sehingga banyak senyawanya dijadikan perasa dan aroma buatan. |
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{| class="wikitable" |
{| class="wikitable" |
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! align="left" valign="top" | Nama ester |
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! valign="top" | Struktur |
! valign="top" | Struktur |
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! align="left" valign="top" | Bau atau terdapat di |
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| [[Alil heksanoat]] |
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| [[Berkas:Prop-2-enyl hexanoate.svg|75px]] |
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| [[nanas]] |
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| [[Benzil asetat]] |
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| [[Berkas:Benzyl acetate-structure.svg|75px]] |
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| [[pir]], [[stroberi]], [[melati]] |
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| [[Bornil asetat]] |
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| [[Berkas:Bornylacetate.svg|50px]] |
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| [[pine]] |
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| [[Butil butirat]] |
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| [[Berkas:Butyl butyrate2.svg|75px]] |
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| [[Etil asetat]] |
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| [[Berkas:Ethyl-acetate-2D-skeletal.png|75px]] |
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| [[penghilang cat kuku]], cat pada mainan, [[lem]] |
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| [[Etil butirat]] |
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| [[Berkas:Ethyl butyrate.png|75px]] |
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| [[pisang]], [[nanas]], [[stroberi]] |
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| [[Etil heksanoat]] |
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| [[Berkas:Ethyl hexanoate.png|75px]] |
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| [[nanas]] |
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| [[Etil sinamat]] |
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| [[Berkas:Ethyl cinnamate.png|75px]] |
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| [[kulit manis]] |
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| [[Etil format]] |
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| [[Berkas:Ethyl methanoate.png|75px]] |
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| [[lemon]], [[rum]], [[stroberi]] |
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| [[Etil heptanoat]] |
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| [[Berkas:Ethyl heptanoate.png|75px]] |
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| [[aprikot]], [[ceri]], [[anggur]], [[raspberi]] |
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| [[Etil isovalerat]] |
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| [[Berkas:Ethyl isovalerate.png|75px]] |
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| [[apel]] |
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| [[Etil laktat]] |
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| [[Berkas:Ethyl lactate.png|75px]] |
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| [[mentega]], [[krim]] |
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| [[Etil nonanoat]] |
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| [[Berkas:Ethyl nonanoate.png|75px]] |
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| [[anggur]] |
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| [[Etil pentanoat]] |
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| [[Berkas:Ethyl valerate.png|75px]] |
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| [[apel]] |
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| [[Geranil asetat]] |
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| [[Berkas:Geranyl acetate skeletal.svg|75px]] |
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| [[Pelargonium]] |
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| [[Geranil butirat]] |
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| [[Berkas:Geranyl butyrate.png|75px]] |
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| [[ceri]] |
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| [[Geranil pentanoat]] |
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| [[Berkas:Geranyl pentanoate.svg|75px]] |
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| [[apel]] |
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| [[Isobutil asetat]] |
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| [[Berkas:Isobutyl acetate.png|75px]] |
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| [[ceri]], [[raspberi]], [[stroberi]] |
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| [[Isobutil format]] |
| [[Isobutil format]] |
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| [[raspberi]] |
| [[raspberi]] |
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| [[Isoamil asetat]] |
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| [[Berkas:Isoamyl acetate.png|75px]] |
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| <!-- Deleted image removed: [[Image:Methyl butyrate.png|75px]] --> |
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| [[pir]], [[pisang]] |
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| [[Isopropil asetat]] |
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| [[Berkas:Isopropyl acetate.png|75px]] |
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| fruity |
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| [[Linalil asetat]] |
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| [[Berkas:Linalyl acetate.svg|75px]] |
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| [[lavender]], [[Common sage|sage]] |
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| [[Linalil butirat]] |
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| [[Berkas:Linalyl butyrate.svg|75px]] |
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| [[persik]] |
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| [[Linalil format]] |
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| [[Berkas:Linalyl formate.svg|75px]] |
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| [[apel]], [[persik]] |
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| [[Metil asetat]] |
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| [[Berkas:Methyl acetate.png|75px]] |
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| [[lem]] |
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| [[Metil antranilat]] |
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| [[Berkas:Methyl anthranilate.png|75px]] |
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| [[anggur]], [[melati]] |
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| [[Metil benzoat]] |
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| [[Berkas:Methyl benzoate.png|75px]] |
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| fruity, [[ylang ylang]], [[feijoa]] |
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| [[Metil butirat]] (metil butanoat) |
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|<!-- Deleted image removed: [[Image:Methyl butyrate.png|75px]] --> |
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| [[nanas]], [[apel]], [[stroberi]] |
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| [[Metil sinamat]] |
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| [[Berkas:methyl cinnamate.png|75px]] |
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| [[strawberry]] |
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| [[Methyl pentanoat]] (metil valerat) |
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| [[Berkas:Methyl pentanoate.png|75px]] |
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| [[bunga]] |
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| [[Metil fenilasetat]] |
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| [[Berkas:Methyl phenylacetate.png|75px]] |
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| [[madu]] |
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| [[Metil salisilat]] |
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| [[Berkas:Salicylic acid methyl ester chemical structure.png|75px]] |
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| [[root beer]], [[wintergreen]], [[Germolene]] dan [[Ralgex]] ointments |
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| [[Nonil kaprilat]] |
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| [[Berkas:Nonyl caprylate.png|75px]] |
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| [[jeruk]] |
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| [[Oktil asetat]] |
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| [[Berkas:Ocyl acetate.png|75px]] |
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| [[jeruk]] |
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| [[Oktil butirat]] |
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| [[Berkas:Octyl butyrate.png|75px]] |
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| [[parsnip]] |
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| [[Amil asetat]] (pentil asetat) |
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| [[Berkas:Amyl acetate.png|75px]] |
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| [[apel]], [[pisang]] |
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| [[Pentil butirat]] (amil butirat) |
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| [[Berkas:Pentyl butyrate.png|75px]] |
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| [[aprikot]], [[pir]], [[nanas]] |
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| [[Pentil heksanoat]] (amil kaproat) |
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| [[Berkas:Pentyl hexanoate.png|75px]] |
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| [[apel]], [[nanas]] |
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| [[Pentil pentanoat]] (amil valerat) |
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| [[Berkas:Pentyl pentanoate.png|75px]] |
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| [[apel]] |
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| [[Propil asetat]] |
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| [[Berkas:Propylethanoate.svg|75px]] |
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| [[pir]] |
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| [[Propil heksanoat]] |
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| [[Berkas:Propyl hexanoate.svg|75px]] |
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| [[blackberry]], [[nanas]], [[keju]], [[wine]] |
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| [[Propil isobutirat]] |
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| [[Berkas:Propylisobutyrate.svg|75px]] |
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| [[rum]] |
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| [[Terpenil butirat]] |
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| [[Berkas:Terpenyl butyrate.png|75px]] |
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| | [[ceri]] |
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| [[Amil Valerat]] |
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| [[]] |
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| | [[apel]] |
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* |
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== Pranala luar == |
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* {{kimia-stub}} |
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* [http://www.chemguide.co.uk/organicprops/esters/background.html An introduction to esters] |
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* [http://www.chm.bris.ac.uk/motm/ethylacetate/ethylh.htm Molecule of the month: Ethyl acetate and other esters] |
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* [http://www.forearthonline.com/allgreenplanet/moreaboutesters.html An example of esters commercial application] |
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{{Templat:Gugus_fungsi}} |
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{{kimia-stub}} |
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[[Kategori:Ester| ]] |
[[Kategori:Ester| ]] |