Midabaynta sulfurwaa unugyo isku dhafan oo heterocyclic ah ama isku-dhafan oo lagu sameeyay dhalaalid ama karkarin xeryahooda organic ka kooban amino ama nitro kooxo leh Na-polysulphide iyo Sulphur.Midabaynta sulfur waxa loogu yeeraa maadaama ay dhamaantood ka kooban yihiin isku xirka Sulfur ee unugyadooda.
Midabada sulfurku waa midab aad u midabaysan, biyo aan milmi karin, waana in loo beddelaa foomamka biyaha ku milmay (lucoforms) ka hor inta aan la isticmaalin alaabta dunta ah.Beddelkan waxa lagu sameeyaa daawaynta walax yaraynaysa sida Na2S aqueous.Maadaama lucoform-kan ee dheeha Sulfur uu yahay mid la taaban karo oo ku saabsan walxaha cellulosic.Waxay ku nuugaan dusha fiberka.Kadibna waxay dib u rogaan qaabka biyaha asalka ah ee aan lagu milmi karin ee dheeha.oksaydhayntan waxa lagu fuliyaa “hawo-qaadis” (soo-gaadhista hawo) ama iyadoo la isticmaalayo wakiilka oksaydhka sida Na-dichromate (Na2Cr2O7).
Waxyaalaha yareeya waxay u bedelaan "S" ee dheeha u noqda -SH kooxda iyo isku xirka Sulfur.Kadibna gudaha maaddada thiols-ka ay ku jiraan kooxaha-SH waa oksaydhaysan oo markaa dib loogu noqdaa qaabka asalka ah ee dheeha.
Tan waxaa lagu muujiyay hoos:
Midab-SS-Dye + 2[H] = Midab-SH + HS-Dye
Dye-SH + HS-Dye +[O] = Midab-SS-Dye + H2O
Sulfurtu waxay keentaa natiijada ugu fiican (Tone dhalaalaysa) marka loo isticmaalo in lagu soo saaro hadhka madow, Madaw & brown laakiin hadhka cas laguma heli karo dheeha Sulfur.
Taariikhda dheeha Sulfur waxaa lagu soo koobi karaa sida soo socota:
1. Midabkii ugu horeeyay ee Sulfur ah oo lagu sameeyay 1873 kulaylinta waxa lagu arkay boodhka, soodhaha iyo sulfur.Waxay dhacday si kadis ah markii weel falcelin ah oo uu ku jiro Na2S uu soo daadanayo oo boodhka miinsha la isticmaalay si loo tirtiro xalka soo baxay.Ka dib maro suuf ah ayaa la soo xiriirtay balka wasakhaysan oo waxay noqotaa wasakh.
2. Hormoodka dhabta ah ee dheeha Sulfur wuxuu ahaa Vidal kaas oo soo saara vidal madow (Magaca Sulfur dheeha) isagoo ku daray para-phenylene diamine oo leh Na2S & Sulfur 1893kii.
3. Sannadkii 1897-kii Kalischer waxa uu soo saaray Immedial Black FF isagoo kuleyliyay 2, 4-dinitro-4-dihydroxy diphenylamine oo leh Na-poly sulphide.
4. Sannadkii 1896kii Read Holliday waxay soo bandhigtay midabyo kala duwan oo cawl, bunni ah iyo madow Sulfur ah oo ay sameeyeen fal Sulphur, sulphides alkali iyo xeryahooda organic badan.
Waqtiga boostada: Meey-08-2020