{"id":760,"date":"2021-10-07T23:25:31","date_gmt":"2021-10-07T23:25:31","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=760"},"modified":"2021-10-14T22:07:33","modified_gmt":"2021-10-14T15:07:33","slug":"axit-axetic-la-gi-tac-dung-duoc-voi-chat-nao-toppy","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/axit-axetic-la-gi-tac-dung-duoc-voi-chat-nao-toppy\/","title":{"rendered":"Axit axetic l\u00e0 g\u00ec? T\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi ch\u1ea5t n\u00e0o"},"content":{"rendered":"\n<script type=\"text\/javascript\">\nimg_numb = 10;\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic r\u1ea5t quen thu\u1ed9c v\u1edbi ch\u00fang ta \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c b\u00e0 n\u1ed9i tr\u1ee3 b\u1edfi ch\u00fang ch\u00ednh l\u00e0 nguy\u00ean li\u1ec7u gi\u1ea5m \u0103n trong c\u0103n b\u1ebfp. \u0110\u1ec3 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t ra \u0111\u01b0\u1ee3c axit axetic s\u1ebd c\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau. C\u1ee5 th\u1ec3 th\u00ec axit axetic l\u00e0 g\u00ec, t\u00ednh ch\u1ea5t c\u1ee7a ch\u00fang ra sao v\u00e0 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0o? C\u00f9ng t\u00ecm hi\u1ec3u ngay sau \u0111\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic l\u00e0 m\u1ed9t lo\u1ea1i h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 t\u00ednh axit kh\u00e1 m\u1ea1nh. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a axit n\u00e0y l\u00e0: CH<sub>3<\/sub>CO<sub>2<\/sub>H. Lo\u1ea1i h\u00f3a ch\u1ea5t n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb r\u1ea5t l\u00e2u \u0111\u1eddi c\u0169ng nh\u01b0 \u1ee9ng d\u1ee5ng nhi\u1ec1u trong s\u1ea3n xu\u1ea5t th\u1ef1c ph\u1ea9m, c\u00f4ng nghi\u1ec7p hay y h\u1ecdc\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i t\u00ean g\u1ecdi tr\u00ean, s\u1ea3n ph\u1ea9m n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi nh\u1eefng t\u00ean kh\u00e1c nh\u01b0: etanoic, Hydro axetat (HAc), Ethylic acid, Axit methane carboxylic, d\u1ea5m, acetic acid, Acid ethanol\u2026<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/10\/download-1-1.jpg\" alt=\"\" class=\"wp-image-2376\" width=\"483\" height=\"185\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/download-1-1.jpg 362w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/10\/download-1-1-300x115.jpg 300w\" sizes=\"(max-width: 483px) 100vw, 483px\" \/><figcaption> Axit axetic <\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t v\u1eadt l\u00fd cu\u0309a CH<sub>3<\/sub>COOH axit axetic la\u0300 gi\u0300?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CH<sub>3<\/sub>COOH c\u00f3 nh\u1eefng t\u00ednh ch\u1ea5t v\u1eadt l\u00fd sau \u0111\u00e2y:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 ch\u1ea5t l\u1ecfng kh\u00f4ng m\u00e0u. Khi n\u1ebfm s\u1ebd th\u1ea5y c\u00f3 v\u1ecb chua. Ch\u00fang c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng tan ho\u00e0n to\u00e0n trong n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang: 1.049 g\/cm<sup>3<\/sup> (l), 1.266 g\/cm<sup>3<\/sup> (s).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y: 16.5<sup>o<\/sup>C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t \u0111\u1ed9 s\u00f4i: 118.2<sup>o<\/sup>C. Nhi\u1ec7t \u0111\u1ed9 s\u00f4i c\u1ee7a ch\u1ea5t n\u00e0y l\u1edbn h\u01a1n r\u01b0\u1ee3u d\u00f9ng ch\u00fang c\u00f9ng ph\u00e2n t\u1eed kh\u1ed1i v\u00ec c\u00f3 s\u1ef1 li\u00ean k\u1ebft b\u1ec1n v\u1eefng c\u1ee7a c\u00e1c ph\u00e2n t\u1eed hydro.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111un n\u00f3ng, axit axetic c\u00f3 kh\u1ea3 n\u0103ng h\u00f2a tan m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf l\u01b0u hu\u1ef3nh v\u00e0 photpho.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ea3n ph\u1ea9m tan t\u1ed1t trong xenlulozo v\u00e0 nitroxenlulozo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit axetic l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit axetic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit axetic th\u00ec nguy\u00ean t\u1eed hydro trong nh\u00f3m cacboxyl c\u00f3 kh\u1ea3 n\u0103ng cung c\u1ea5p m\u1ed9t proton H+ v\u00e0 l\u00e0m ch\u00fang c\u00f3 t\u00ednh ch\u1ea5t axit. T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit axetic l\u00e0 g\u00ec? \u0110a\u0301p a\u0301n la\u0300:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 axit y\u1ebfu v\u00e0 thu\u1ed9c nh\u00f3m axit monoprotic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ed3ng \u0111\u1ed9 mol l\u00e0: 1 M<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 pH l\u00e0 2.4 t\u1ee9c l\u00e0 ch\u1ec9 c\u00f3 0.44 % ph\u00e2n t\u1eed axit axetic b\u1ecb ph\u00e2n ly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic d\u1ea1ng l\u1ecfng ch\u00ednh l\u00e0 dung m\u00f4i ph\u00e2n c\u1ef1c v\u1edbi h\u1eb1ng s\u1ed1 \u0111i\u1ec7n ly kho\u1ea3ng 6.2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic c\u00f3 kh\u1ea3 n\u0103ng h\u00f2a tan m\u1ed9t s\u1ed1 h\u1ee3p ch\u1ea5t kh\u00f4ng ph\u00e2n c\u1ef1c nh\u01b0 d\u1ea7u, c\u00e1c nguy\u00ean t\u1ed1 l\u01b0u hu\u1ef3nh, iot v\u00e0 c\u00e1c dung m\u00f4i ph\u00e2n c\u1ef1c nh\u01b0 n\u01b0\u1edbc, chloroform, hexan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea5u t\u1ea1o ph\u00e2n t\u1eed c\u1ee7a axit axetic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic t\u00e1c d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi ch\u1ea5t n\u00e0o?<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit CH3COOH\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/qu1JGxLSizk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a axit CH<sub>3<\/sub>COOH<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi t\u00ecm hi\u1ec3u v\u1ec1 axit axetic l\u00e0 g\u00ec c\u0169ng nh\u01b0 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc c\u1ee7a ch\u00fang, h\u1eb3n l\u00e0 b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c ch\u00fang c\u00f3 kh\u1ea3 n\u0103ng t\u00e1c d\u1ee5ng v\u1edbi ch\u1ea5t g\u00ec. C\u1ee5 th\u1ec3 s\u1ebd l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi baz\u01a1, cacbonat v\u00e0 bicacbonat<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi t\u00e1c d\u1ee5ng v\u1edbi c\u00e1c ch\u1ea5t tr\u00ean, s\u1ea3n ph\u1ea9m t\u1ea1o ra s\u1ebd l\u00e0 axetat kim lo\u1ea1i t\u01b0\u01a1ng \u1ee9ng, n\u01b0\u1edbc v\u00e0 cacbonic. Ph\u1ed5 bi\u1ebfn nh\u1ea5t s\u1ebd l\u00e0 natri bicacbonat v\u1edbi gi\u1ea5m \u0103n. C\u1ee5 th\u1ec3 ph\u01b0\u01a1ng tr\u00ecnh nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NaHCO<sub>3<\/sub> + CH<sub>3<\/sub>COOH \u2192 CH<sub>3<\/sub>COONa + CO<sub>2<\/sub> + H<sub>2<\/sub>O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u1eeb crom (II) axetat, c\u00f2n l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c axetat kh\u00e1c \u0111\u1ec1u c\u00f3 th\u1ec3 tan \u0111\u01b0\u1ee3c trong n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi ki\u1ec1m t\u1ea1o ra n\u01b0\u1edbc v\u00e0 ethanoate kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c c\u1ee7a ph\u1ea3n \u1ee9ng n\u00e0y nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NaOH + CH<sub>3<\/sub>COOH \u2192 CH<sub>3<\/sub>COONa + H<sub>2<\/sub>O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic khi b\u1ecb ph\u00e2n h\u1ee7y \u1edf nhi\u1ec7t \u0111\u1ed9 l\u1edbn h\u01a1n 440oC s\u1ebd t\u1ea1o th\u00e0nh cacbonic, metan ho\u1eb7c ethenon v\u00e0 n\u01b0\u1edbc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi r\u01b0\u1ee3u t\u1ea1o th\u00e0nh este<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ROH + CH<sub>3<\/sub>COOH \u2192 CH<sub>3<\/sub>COOR + H<sub>2<\/sub>O<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.youtube.com\/watch?v=lrMzX2dN8MM\n<\/div><figcaption>Axit axetic CH3COOH t\u00e1c d\u1ee5ng v\u1edbi r\u01b0\u1ee3u Etylic<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi kim lo\u1ea1i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic c\u00f3 kh\u1ea3 n\u0103ng \u0103n m\u00f2n c\u00e1c lo\u1ea1i kim lo\u1ea1i kh\u00e1c nhau \u0111\u1ec3 t\u1ea1o ra kh\u00ed hydro v\u00e0 c\u00e1c mu\u1ed1i axetat. V\u00ed d\u1ee5 nh\u01b0 khi ch\u00fang ph\u1ea3n \u1ee9ng v\u1edbi nh\u00f4m s\u1ebd c\u00f3 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mg + 2CH<sub>3<\/sub>COOH \u2192 (CH<sub>3<\/sub>COO)<sub>2<\/sub>Mg + H<sub>2<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f4m th\u1ee5 \u0111\u1ed9ng v\u1edbi axit axetic v\u00ec khi ph\u1ea3n \u1ee9ng, ch\u00fang s\u1ebd t\u1ea1o ra l\u1edbp m\u00e0ng m\u1ecfng tr\u00ean b\u1ec1 m\u1eb7t l\u00e0 nh\u00f4m oxit \u0111\u1ec3 ng\u0103n ch\u1eb7n l\u1ea1i s\u1ef1 \u0103n m\u00f2n. Ch\u00ednh v\u00ec v\u1eady m\u00e0 th\u00f9ng nh\u00f4m th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111\u1ef1ng axit axetic.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.youtube.com\/watch?v=8bud_lR9yRU\n<\/div><figcaption>T\u00ednh \u0103n m\u00f2n<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea3n \u1ee9ng th\u1ebf halogen v\u00e0o g\u1ed1c hydrocacbon ( 90 \u2013 100<sup>o<\/sup>C)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cl<sub>2<\/sub> + CH<sub>3<\/sub>COOH \u2192 ClCH<sub>2<\/sub>COOH + HCl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi axetylen (x\u00fac t\u00e1c th\u1ee7y ng\u00e2n, nhi\u1ec7t \u0111\u1ed9 70 \u2013 80<sup>o<\/sup>C) th\u00e0nh etyl diaxetat<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C<sub>2<\/sub>H<sub>2<\/sub> + 2CH<sub>3<\/sub>COOH \u2192 CH<sub>3<\/sub>CH(OCOCH<sub>3<\/sub>)<sub>2<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c d\u1ee5ng v\u1edbi amoniac t\u1ea1o th\u00e0nh amid<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NH<sub>3<\/sub> + CH<sub>3<\/sub>COOH \u2192 NH<sub>3<\/sub>CH<sub>3<\/sub>COOHNH<sub>4<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea3n \u1ee9ng decacboxyl h\u00f3a th\u00e0nh axeton (X\u00fac t\u00e1c mangan oxit, nhi\u1ec7t \u0111\u1ed9)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C<sub>2<\/sub>H<sub>2<\/sub>+ CH<sub>3<\/sub>COOH \u2192 CH<sub>2<\/sub>CHOCOCH<sub>3<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u ch\u1ebf axit axetic CH<sub>3<\/sub>COOH<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 3 ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf Axit axetic \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Carbonyl h\u00f3a methanol<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi methanol t\u00e1c d\u1ee5ng v\u1edbi cacbon monoxit s\u1ebd t\u1ea1o th\u00e0nh axit axetic v\u1edbi c\u00f4ng th\u1ee9c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CH<sub>3<\/sub>OH + CO \u2192 CH<sub>3<\/sub>COOH<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 li\u00ean quan \u0111\u1ebfn ch\u1ea5t trung gian l\u00e0 iodometan, x\u00fac t\u00e1c l\u00e0 ph\u1ee9c ch\u1ea5t kim lo\u1ea1i s\u1ebd tr\u1ea3i qua 3 b\u01b0\u1edbc sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CH3OH + HI \u2192 CH<sub>3<\/sub>I + H<sub>2<\/sub>O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CH<sub>3<\/sub>I + CO \u2192 CH<sub>3<\/sub>COI<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CH<sub>3<\/sub>COI + H<sub>2<\/sub>O \u2192 CH<sub>3<\/sub>COOH + HI<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oxy h\u00f3a axetandehit<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Axit axetic CH3COOH s\u1ebd \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t ra t\u1eeb butan C<sub>4<\/sub>H<sub>10<\/sub> v\u1edbi x\u00fac t\u00e1c v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u1edf trong quy tr\u00ecnh c\u00f4ng nghi\u1ec7p. \u0110\u00f3 l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2C<sub>4<\/sub>H<sub>10 <\/sub>+ 3O<sub>2<\/sub> \u2192 4CH<sub>3<\/sub>COOH + 2H<sub>2<\/sub>O<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p l\u00ean men trong \u0111i\u1ec1u ki\u1ec7n hi\u1ebfu kh\u00ed<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 ph\u01b0\u01a1ng ph\u00e1p l\u00ean men Axit axetic trong \u0111i\u1ec1u ki\u1ec7n hi\u1ebfu kh\u00ed s\u1ebd c\u00f3 2 c\u00e1ch l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p l\u00ean men ch\u1eadm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta s\u1ebd cho CH<sub>3<\/sub>COOH v\u00e0o trong th\u00f9ng g\u1ed7 s\u1ed3i c\u00f3 th\u1ec3 t\u00edch 250- 300l. Ch\u1ec9 \u0111\u1ed5 axit n\u00e0y kho\u1ea3ng 1\/5 th\u1ec3 t\u00edch th\u00f9ng l\u01b0\u1ee3ng sau \u0111\u00f3 \u0111\u1ed5 th\u00eam n\u01b0\u1edbc \u00e9p nho v\u00e0o \u0111\u1ebfn khi \u0111\u01b0\u1ee3c n\u1eeda th\u00f9ng. Sau \u0111\u00f3 l\u00ean men \u1edf nhi\u1ec7t \u0111\u1ed9 th\u01b0\u1eddng trong v\u00e0i tu\u1ea7n. Ki\u1ec3m tra cho \u0111\u1ebfn khi n\u00e0o r\u01b0\u1ee3u c\u00f2n 0.3- 0.5% th\u00ec c\u00f3 th\u1ec3 l\u1ea5y gi\u1ea5m ra v\u00e0 b\u1ed5 sung th\u00eam dinh d\u01b0\u1ee1ng m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p l\u00ean men nhanh<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta ti\u1ebfn h\u00e0nh cho axit axetic v\u1edbi n\u1ed3ng \u0111\u1ed9 3- 5% ch\u1ea3y qua l\u1edbp phoi b\u00e0o \u0111\u1ec3 thanh tr\u00f9ng v\u00e0 axit h\u00f3a v\u1eadt li\u1ec7u ch\u1ea5t mang \u0111\u1ec3 vi sinh gi\u1ed1ng d\u1ec5 th\u00edch nghi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp \u0111\u00f3 s\u1eed d\u1ee5ng n\u01b0\u1edbc v\u00f4 tr\u00f9ng r\u1eeda qua v\u00e0 n\u1ea1p gi\u1ed1ng vi khu\u1ea9n axetic.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cho d\u00f2ng m\u00f4i tr\u01b0\u1eddng v\u00e0o th\u00f4ng qua h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i t\u1eeb tr\u00ean xu\u1ed1ng v\u00e0 th\u1ed5i kh\u00ed t\u1eeb d\u01b0\u1edbi l\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fac n\u00e0y, vi khu\u1ea9n s\u1ebd oxy h\u00f3a r\u01b0\u1ee3u th\u00e0nh axit axetic CH<sub>3<\/sub>COOH . Ch\u00fang th\u1ea9m th\u1ea5u qua m\u00e0ng t\u1ebf b\u00e0o ra ngo\u00e0i r\u1ed3i theo dung d\u1ecbch xu\u1ed1ng \u0111\u00e1y thi\u1ebft b\u1ecb l\u00ean men.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 k\u00e9o d\u00e0i t\u1eeb 8- 10 ng\u00e0y v\u1edbi nhi\u1ec7t \u0111\u1ed9 24 \u2013 37<sup>o<\/sup>C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p l\u00ean men ch\u00ecm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta cho dung d\u1ecbch l\u00ean men v\u00e0o trong thi\u1ebft b\u1ecb sau \u0111\u00f3 th\u1ed5i kh\u00ed m\u1ea1nh v\u00e0o. Nh\u01b0 v\u1eady l\u00e0 th\u1ec3 huy\u1ec1n ph\u00f9 v\u00e0 dung d\u1ecbch l\u00ean men s\u1ebd \u0111\u01b0\u1ee3c t\u1ea1o ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p k\u1ebft h\u1ee3p<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 th\u1ed1ng l\u00ean men k\u1ebft h\u1ee3p bao g\u1ed3m:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1edbp \u0111\u1ec7m ch\u1ee9a vi sinh v\u1eadt tr\u00ean c\u00f9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede gi\u1eefa l\u00e0 m\u1ed9t th\u00f9ng ch\u1ee9a dung d\u1ecbch \u0111\u1ec3 sau khi l\u00ean men ch\u1ea3y xu\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 th\u1ed1ng th\u1ed5i kh\u00ed \u1edf d\u01b0\u1edbi \u0111\u00e1y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng c\u1ee7a axit axetic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n \u0111\u00e3 n\u1eafm \u0111\u01b0\u1ee3c axit axetic l\u00e0 g\u00ec c\u0169ng nh\u01b0 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, h\u00f3a h\u1ecdc v\u00e0 c\u00e1ch t\u1ea1o ra ch\u00fang ch\u01b0a n\u00e0o? Hy v\u1ecdng ch\u00fang \u0111\u00e3 c\u00f3 th\u1ec3 gi\u00fap \u0111\u01b0\u1ee3c b\u1ea1n <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> m\u00f4n h\u00f3a 9 m\u1ed9t c\u00e1ch t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Properties of Acetic Acid - MeitY OLabs\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/CRBOmO18YqY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption>Acetic acid&#8217;s properties<\/figcaption><\/figure>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Axit axetic r\u1ea5t quen thu\u1ed9c v\u1edbi ch\u00fang ta \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c b\u00e0 n\u1ed9i tr\u1ee3 b\u1edfi ch\u00fang ch\u00ednh l\u00e0 nguy\u00ean li\u1ec7u gi\u1ea5m \u0103n trong c\u0103n b\u1ebfp. \u0110\u1ec3 c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t ra \u0111\u01b0\u1ee3c axit axetic s\u1ebd c\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau. C\u1ee5 th\u1ec3 th\u00ec axit axetic l\u00e0 g\u00ec, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2375,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8],"tags":[],"class_list":["post-760","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/760","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=760"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/760\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media\/2375"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}