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Iidayi ezineasidi

Idayi ze-asidi zemveli zibhekisela kwiidayi ezinyibilikayo emanzini ezinamaqela ane-acidic kwisakhiwo sedayi, edla ngokudaywa phantsi kweemeko ze-acidic.

 Isishwankathelo seeDayi zeAcid

1.Imbali yeedayi zeasidi

Ngo-1868, kwavela iidayi ze-asidi zokuqala, njengedayi ye-triaromatic methane acid, eyayinamandla.ukudayaamandla kodwa ukukhawuleza okulambathayo.

Ngo-1877, apho kwenziwa idayi yokuqala yeasidi yokudaya uboya, njengebomvu A. Ulwakhiwo olusisiseko lwamiselwa.

Emva kwe-1890, idayi ye-asidi ene-anthraquinone yenziwe. Kwaye inechromatography engaphezulu nangaphezulu.

Ukuza kuthi ga ngoku, kukho phantse amakhulu eentlobo zedayi ze-asidi, ezisetyenziswa ngokubanzi kuboya bokudaya, isilika kunye nenayiloni, njl.

Idayi zeAcid

2.Iimpawu zedayi zeasidi

Iqela le-acidic kwiidayi ze-asidi ngokuqhelekileyo lisekelwe kwiqela le-sulfonic acid (-SO3H) kwaye ikhona kwimo yesodium sulfonic acid ityuwa (-SO3NA) kwi-molecule yedayi. Kwaye ezinye zisekwe kwi-sodium carboxylate (-COONA).

Idayi ze-Acid zinokunyibilika kakuhle kwamanzi, umthunzi wombala oqaqambileyo, ichromatography epheleleyo kunye nesakhiwo semolekyuli esilula kunezinye iidayi. Kwakhona ngenxa yokungabikho kwenkqubo ehambelanayo ye-conjugate ende kwi-molecule yedayi, ngokuthe ngqo kwedayi ye-asidi iphantsi.

3.Indlela yokusabela kwiidayi zeasidi

Uboya - NH3+ + -O3S — Idayi → Uboya — NH3+·-O3S - Idayi

Isilika - NH3+ + -O3S — Idayi → Isilika — NH3+·-O3S - Idayi

Inayiloni - NH3+ + -O3S — Idayi → Inayiloni — NH3+·-O3S - Idayi

 

Ukuhlelwa kweeDayi ze-Acid

1.Ukuhlelwa ngokwesakhiwo semolekyuli yomzali wedayi

■ Idayi zeAzo (Iakhawunti ye-60%.

■ Idayi ze-Anthraquinone (Iakhawunti ye-20%. Ikakhulu iblue and green series)

■ Idayi ye-Triaromatic methane (Iakhawunti ye-10%.

■ Idayi zeHeterocyclic (Iakhawunti ye-10%. Uluhlu olubomvu nomfusa.)

2.Ukuhlelwa nge-pH yeedayi

■ Idayi ze-Acid kwibhafu yeasidi eyomeleleyo: Ukudaya ixabiso le-pH yi-2.5 ~ 4. Ukukhawuleza okukhanyayo kulungile, kodwa ukukhawuleza kokuphatha okumanzi kumbi. Umthunzi wombala ugqamile kwaye ipropathi yokulinganisa ilungile.

■ Idayi ze-Acid kwibhafu ye-asidi ebuthathaka: Ukudaya ixabiso le-pH yi-4 ~ 5. Isantya seqela le-sulfonic acid kwisakhiwo se-molecular yedayi siphantsi. Ngoko ke ukunyibilika kwamanzi kumbi kancinane. Ukukhawuleza kokusingatha okumanzi kungcono kunedayi ze-asidi kwibhafu ye-asidi eqinile, kodwaumgangathoipropati ihlwempuzekile kancinane.

■ Idayi ze-Acid kwibhafu ye-asidi engathathi hlangothi: Ukudaya ixabiso le-pH yi-6 ~ 7. Isantya seqela le-sulfonic acid kwisakhiwo se-molecular yedayi siphantsi. Ukunyibilika kwedayi kuphantsi kwaye nepropathi yokulinganisa imbi. Umthunzi wombala awukhanyisi ngokwaneleyo, kodwa ukukhawuleza kokusingatha okumanzi kuphezulu.

Ukudaya inayiloni

Umbala oQhelekileyo wokuFaka kweDayi ye-Acid

1.Ukukhawuleza ukukhanya

Kukuchasana kombala we-textile ekukhanyeni okwenziweyo. Ngokubanzi ivavanywa ngokwe-ISO105 B02.

2.Ukukhawuleza kombalaukuhlamba

Kukuchasana kombala we-textile ukuhlamba phantsi kweemeko ezahlukeneyo, njenge-ISO105 C01\C03\E01, njl.

3.Ukukhawuleza kombala ukuhlikihla

Kukuxhathisa kombala we-textile kwisenzo sokuhlikihla. Inokwahlulwa ibe yi-fastness ukomisa ukuhlikihla kunye nokukhawuleza ukuhlikihla okumanzi.

4.Ukukhawuleza kombala kumanzi eklorin

Ikwabizwa ngokuba yi-colorfastness kumanzi echibi le-chlorine. Ngokuqhelekileyo kukulinganisa ukuxinana kweklorini kwidama lokuqubha ukuvavanya ukuxhathisa kwelaphu ukujika kombala weklorini. Umzekelo, indlela yokuvavanya i-ISO105 E03 (Umxholo we-chlorine osebenzayo ngu-50ppm.) ufanelekile kwimpahla yokuqubha yenayiloni.

Ukudaya ngeasidi

5.Ukukhawuleza kombala ukuya kubila

Kukuxhathisa kombala welaphu ukubila komntu. Ngokweasidi kunye ne-alkali yombilo, inokohlulwa ibe yimibala ekhawulezayo ukuya kumbilo weasidi kunye nokukhawuleza kombala ukuya kumbilo wealkali. Amalaphu adayiwe ngedayi eneasidi ngokubanzi avavanyelwa ukululama kombala ukuya kumbilo wealkali.

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Ixesha lokuposa: Aug-16-2022