Habka nadiifinta iyo sifeynta Arsenic

Habka nadiifinta iyo kala-soocidda arsenic waa hab u adeegsada farqiga isbeddelka arsenic iyo isku-darka si loo kala saaro loona nadiifiyo, gaar ahaan ku habboon in laga saaro sulfur, selenium, tellurium iyo wasakhda kale ee ku jirta arsenic.Waa kuwan tallaabooyinka muhiimka ah iyo tixgelinta:

1.Daaweynta hore ee alaabta ceeriin ah

• Ilaha sunta arsenic-ka ee cayriin: badanaa waa wax soo saar ka soo baxa dhalaalinta macdanta ay ku jirto arsenic (tusaale ahaan arsenite, realgar) ama qashinka ay ku jirto arsenic ee dib loo warshadeeyay.
• Dubitaanka oksaydhaynta(ikhtiyaar): Haddii walaxda cayriin ay tahay arsenic sulfide (tusaale ahaan As₂S₃), waxay u baahan tahay in marka hore la dubay si loogu beddelo mid kacsan As₂O₃

As2S3+9O2→As2O3+3SO2As2S3+9O2→Sida2​O3​+3SO2​

2.Qalabka kala-soocidda

• Qalabka: Quartz ama dhoobada aan lahayn (u adkaysta daxalka, u adkaysta heerkulka sare), oo ku qalabaysan tuubo kondenseer ah iyo dhalo qaabilaysa.
• Ilaalinta aan firfircoonayn: Nitrogen ama kaarboon laba ogsaydh ayaa la soo bandhigayaa si looga hortago oksaydhka arsenic ama khatarta qaraxa (uumiga arsenic waa la guban karaa).

3.Habka kala-soocidda

• Xakamaynta heerkulka:
  • Sublimation-ka Arsenic: Sublimation As₂O₃ ah oo ah 500-600 °C (sublimation arsenic saafi ah oo ah qiyaastii 615 °C).
  • Kala soocidda wasakhda: wasakhda karkaraya sida sulfur iyo selenium ayaa si gaar ah u burbura waxaana lagu kala saari karaa biyo-xireen kala qaybsan.
• Ururinta uumigaUumiga Arsenic wuxuu isu beddelaa nadiif sare oo ah As₂O₃ ama arsenic elemental ah oo ku jira aagga uumiga (100-200°C)).

4.Ka-shaqeynta kadib

• Hoos u dhigid(haddii loo baahdo arsenic elemental ah): Yaraynta As₂O₃ iyadoo la isticmaalayo kaarboon ama haydarojiin

As2O3+3H2→2As+3H2OAs2O3+3H2→2S+3H2​O

• Sifeynta faakuumka: si dheeraad ah u nadiifinta arsenic-ka curiyaha ah si looga saaro wasakhda kacsan ee hartay.

5.Ka taxadaritaan

• Ilaalinta sunta: Geedi socodka oo dhan waa hawlgal xiran, oo lagu qalabeeyay qalabka ogaanshaha daadashada arsenic iyo qalabka daaweynta degdegga ah.
• Daaweynta gaaska dabadaKa dib marka uumiga, gaaska dabada waxaa loo baahan yahay in lagu nuugo xalka lye (sida NaOH) ama nuugista kaarboonka firfircoon si looga fogaado As₂O₃qiiqa.
• Kaydinta biraha Arsenic: lagu kaydiyo jawi aan firfircoonayn si looga hortago oksaydheynta ama deliques.

6. NadiifnimoHorumarinta

• Kala-soocid marxalado badan leh: Nadiifinta soo noqnoqota waxay hagaajin kartaa daahirnimada ilaa in ka badan 99.99%.
• Aagga dhalaalka (ikhtiyaar): Sifeynta aagga ee arsenic-ka elemental si loo sii yareeyo wasakhda birta.

Meelaha codsiga

Arsenic saafi ah ayaa loo isticmaalaa walxaha semiconductor-ka (tusaale ahaan GaAs).kiristaalis), waxyaabaha lagu daro daawaha, ama soo saarista muraayadaha gaarka ah.Wadooyinku waxay u baahan yihiin inay u hoggaansamaan xeerarka deegaanka ee adag si loo hubiyo badbaadada iyo qashin-qubka waafaqsan.