Potassium sulfide

Potassium sulfide fili ne mai crystal form singonicheskoy ba tare da launi. Its narkewa batu karkacewa 948 ° C, a lokacin da takamaiman abu yawa 1,805 g / cm3 (da yawa an saita a wani misali da zazzabi 14 ° C). A lu'ulu'u ne readily mai narkewa a cikin ruwa-ruwa bayani da kuma suna da wani babban hygroscopicity. Bugu da kari, potassium sulfide aka hydrolyzed, mai narkewa a cikin glycerol da ethanol. Lokacin da mu'amala da su a lokacin da halayen kafa dihydrates da topotecan wakiltar colorless lu'ulu'u, halin H0obr darajar, bi da bi, da kuma -984,5 -1880,0 KJ / mol.

The abu ne mai sauqi ka bude iska hadawan abu da iskar shaka, game da shi, kafa K2S2O3, kuma aka saki a lokacin konewa SO2. Potassium sulfide aka shirya wanda dabara K2S, K2CO3 maida martani tare da sulfur, haka wajibi ne a samar da dauki ga ban inflow na iska. Yana yiwuwa a samu wani abu da kuma ta rage dauki, carbon aiki a kan gishiri K2SO4.

Potassium sulfide ne yadu amfani da wani muhimmanci bangaren a cikin photosensitive emulsion da coatings masana'antu da kuma hotunan. A sinadaran Manufacturing da aikace-aikace dangane da ikon aiki da reagent a dauke da fitar da rabuwa da daban-daban karfe sulfides. Amfani a cikin yadi da kuma fata masana'antu kunshi a potassium sulfide hada da wajen domin farko jiyya na fata.

A wani KHS hydrosulfide ko polysulfide abu da aka yi amfani da fasahar sulfiding ferro gami, jefa baƙin ƙarfe da karfe. An yadu amfani a yi na medicaments domin lura da daban-daban fata cuta. Aikin gona aiki potassium sulfide - da amfani a matsayin pesticide.

Matsayin mai mulkin, potassium sulfide ne fairly sauki hanya. Don wannan gauraye sauri lemun tsami da sulfur da potassium carbonate. Wannan cakuda da aka sa'an nan narkewa a cikin ruwa da kuma Boiled ga dama hours. A sakamakon wannan hanya ne kafa potassium polysulfide. Sa'an nan, daga cikin sakamakon bayani ta hanyar wani tace cire precipitate alli carbonate, da kuma bayani evaporated kansa da kansa kafin kai da takamaiman nauyin 1.25-1.30. A karshe, cikin bayani da aka kara admixed da kananan adadin sulfur, mai tsanani a sake, da kuma bayan sanyaya aka zuba.

Potassium sulfide samuwar auku quantitatively, amma ga irin wannan dauki da kwarara wajibi ne a samar da wani sosai m danshin na NH3 tururi ta tube wanda yake pre-cika kamata potassium hydroxide. A sakamakon haka, da dauki kamata a da za'ayi daidai ba colorless ammonia bayani da kuma farin precipitate wanda shi ne potassium sulfide.

A sakamakon kayan da ke a wajen dogon lokaci wajibi ne a tsotso fitar da wani musamman mai famfo, sa'an nan za a calcined a zazzabi na 400-500 ° C. Yawancin lokaci, bayan da cewa samu lu'ulu'u da aka pulverized da kuma tsarkake nitrogen a gwajin shambura a vacuo.

A sakamakon hydrolysis potassium disulfide ne foda na wani rawaya launi, ta dabara - K2S2. A kwayoyin nauyi abu ne 142,327 amu A zazzabi na 477 ° C disulphide fara narke da a 600 ° C da shi decomposes.

Potassium sulfide aka mayar da martani tare da daban-daban abubuwa. Alal misali, a kan dauki tare da primary alkyl halides ake samu ta hanyar tsakaitã dialkyl sulfides. Har ila yau, gauraye da mafita na potassium sulfide da daban-daban mafita (musamman - hromokalievyh da potash) alum.

Domin likita dalilai da potassium sulfide daga high tsarki. A wannan masana'antu da shi da aka gabatar da daban-daban garwashin, wanda aka shirya daga cakuda da abu da kanta, ta hydroxide da sulfur. Kunna likita ci faruwa a musamman Tanderu a zazzabi na ba ƙananan fiye da 800 - 900 ° C. Sa'an nan da kau da sulfur mahadi da kuma halatta kudaden haram da chlorine ion ne hydrochloric acid.