Yintoni Oyaziyo Ngeedayi Zesalfure(1)?

Iidayi zesalfure ziidayi ezinyibilikiswa kwi-alkali sulfure. Zisetyenziselwa kakhulu ukudaya imicu yekotoni kwaye zingasetyenziselwa namalaphu axutyiweyo ekotoni/iivithamini. Ixabiso liphantsi, idayi ngokubanzi iyakwazi ukuhlamba kwaye ikhawuleza, kodwa umbala awukhanyi ngokwaneleyo. Iindidi ezisetyenziswa rhoqo zeziIbhlowu yeSulphur 7,I-Sulphur Red 14 I-Sulphur Black Bluishandnjalo njalo. Iidayi zesalfure ezinyibilikayo ngoku ziyafumaneka. Idayi eyenziwe yi-vulcanization reaction ye-amines, i-phenols, okanye ii-nitro compounds ze-aromatic hydrocarbons ezine-sulfur okanye i-sodium polysulphur,

ukungaqhelekanga

Iidayi zesalfure azinyibiliki emanzini, kwaye i-sodium sulphur okanye ezinye izinto ezinciphisayo zisetyenziselwa ukunciphisa iidayi zibe yi-leucochromes ezinyibilikayo. Inamathele kwifayibha kwaye ingcolisa ifayibha, ize ibuyisele imeko yayo yokunganyibiliki ngokuyitshisa kunye nokuqinisa ifayibha. Ngoko ke idayi yesalfure ikwayidayi ye-VAT. Iidayi zeVulcanized zingasetyenziselwa ukudaya umqhaphu, ihemp, iviscose kunye nezinye iifayibha, inkqubo yayo yokwenziwa ilula, ixabisa kancinci, ingadaywa nge-monochrome, kodwa inokuba nombala oxutyiweyo, ingakhawulezi kakuhle elangeni, ingakhawulezi kakuhle ukunxiba. Ukungabikho kwe-chromatographic kombala obomvu, omfusa, omnyama, ofanelekileyo ukudaya umbala oqinileyo.

hlela

Ngokweemeko ezahlukeneyo zokudaya, iidayi zesalfure zingahlulwa zibe ziidayi zesalfure kunye nesodium sulphur njenge-reducing agent kunye nesulfur VAT dyes kunye nesodium disulfite njenge-reducing agent. Ukuze isetyenziswe lula, iqela le-sulfuric acid litshintshwa ngesodium metabisulfite okanye i-sodium formaldehyde bisulfite (igama eliqhelekileyo) ukuze kufunyanwe idayi yesalfure enyibilikayo emanzini, enokusetyenziswa ngokuthe ngqo ekudayiseni ngaphandle kwe-reducing agent.

(1) iidayi zesalfure ezisebenzisa i-sodium sulphur njenge-arhente yokunciphisa;

(2) iidayi zokunciphisa isalfure (ezaziwa ngokuba ziidayi zeHaichang) ezinomgubo womshuwalense njengearhente yokunciphisa;

(3) Idayi yesalfure engamanzi luhlobo olutsha lwedayi yesalfure oluphuhliswe kwaye lwenziwa ukuze kube lula ukulisebenzisa.

Ukusetyenziswa kweedayi ezinjalo kufana needayi ze-VAT ezinyibilikayo, ezinokuxutywa ngokuthe ngqo ngamanzi ngokulingana nolwakhiwo, ngaphandle kokongeza ii-reducing agents, kwaye kufuneka kongezwe i-sodium sulphur xa kuphela inxalenye yombala ikhanya. Olu hlobo lwe-dye chromatography lubanzi, kukho obomvu oqaqambileyo, omdaka onsomi, oluhlaza okotshani.

Zala

Kukho iindlela ezimbini zokuvelisa iidayi zesalfure kwimizi-mveliso: ① indlela yokubhaka, ii-aromatic amines zezinto eziluhlaza, ii-phenols okanye i-nitro matter kunye ne-sulfur okanye i-sodium polysulphur xa kushushu kakhulu ukubhaka, ukuze kuveliswe iidayi zesalfure ezityheli, eziorenji, ezimdaka. ② Indlela yokubilisa, ii-amines, ii-phenols okanye izinto ze-nitro ze-aromatic hydrocarbons eluhlaza kunye ne-sodium polysulphur ziyafudunyezwa kwaye zibiliswe emanzini okanye kwi-organic solvents ukuze kufunyanwe idayi emnyama, eluhlaza okwesibhakabhaka kunye neluhlaza.

indalo

1, efana needayi ezithe ngqo

(1) ityuwa ingasetyenziselwa ukukhuthaza ukudaywa.

(2), iarhente yokulungisa umbala we-cationic kunye nearhente yokulungisa umbala wetyuwa yesinyithi ukuphucula ukukhawuleza.

2, efana needayi ze-VAT

(1), idayi kufuneka incitshiswe ibe yi-leachite nge-reducing agent ukuze idaywe i-fiber kwaye i-oxidize kwi-fiber. Endaweni ye-reducing agent enamandla, i-sodium sulphur yi-reducing agent ebuthathaka. Nangona kunjalo, ipropathi ethe ngqo ye-leaches kwi-fibers emva kokunciphisa iphantsi kuneye-VAT dyes, kwaye ukuthambekela kokuhlanganiswa kwedayi kukhulu.

(2) I-reaction ene-asidi inokuvelisa igesi ye-H2S, kwaye i-reaction ene-acetate ye-aluminiyam inokuvelisa i-aluminium black sulphur precipitation.

3, ubushushu obuphezulu bungasetyenziselwa ukuphucula izinga lokusasazwa kweedayi kunye nokuphucula izinga lokungena.