Kupindira kwakajairika muSodium Cyanide Titration Analysis

ziviso

Titration ongororo ye sodium cyanide inzira yakakosha mukuongorora chemistry, kunyanya mumaindasitiri akadai semigodhi, electroplating, uye kugadzira makemikari. Nekudaro, kuvepo kwezvinhu zvakasiyana-siyana zvinokanganisa zvinogona kukanganisa zvakanyanya kurongeka uye kuvimbika kwemhedzisiro yetitration. Kunzwisisa izvi zvinokanganisa zvinowanzoitika kwakakosha kuti uwane data chaiyo uye yakavimbika.

Metal Ions seZvinhu Zvinopindira

Heavy Metal Ions

Heavy metal ions semhangura (Cu²⁺), zinc (Zn²⁺), uye nickel (Ni²⁺) inogona kugadzira macomplexes akagadzikana ane cyanide ions. Semuyenzaniso, maion emhangura anopindirana necyanide kuumba copper cyanide complexes se[Cu(CN)₂]⁻ uye [Cu(CN)₄]³⁻. Aya maitiro akaoma ekuumbwa anodya cyanide ions, zvichitungamira mukusatarisirwa kweiyo chaiyo Sodium Cyanide kugutsikana panguva yekunyora. Mune electroplating mhinduro, iyo inowanzo ine mhangura uye zingi pamwe chete Sodium cyanide, kupindira uku kunogona kunyanya kutaurwa.

Iron Ions

Iron ions (Fe³⁺ neFe²⁺) inogonawo kukanganisa sodium cyanide titration. Mune acidic medium, Fe³⁺ inogona kuita ne cyanide ions kugadzira akasiyana iron - cyanide complexes, seanozivikanwa anozivikanwa Prussian bhuruu - semakomponi. Izvi zvinogona kupedza cyanide ions uye kukanganisa stoichiometry yetitration reaction pakati peioni dzesirivha (inowanzo shandiswa mu cyanide titration) uye cyanide ions. Pamusoro pezvo, pamberi peokisijeni, Fe²⁺ inogona kuve oxidized kuFe³⁺, zvichiwedzera kuomesa mamiriro ekukanganisa.

Anionic Kupindira

Sulfid Ions

Sulfide ions (S²⁻) zvinhu zvakajairika zvinokanganisa mu sodium cyanide titration. Mune alkaline medium, kana sulfide iripo, inogona kuita neiyo hydrogen ions kubva kune acidic mamiriro anoshandiswa mune mamwe maitiro etitration (kana kuumba hydrogen sulfide gasi iyo inogona kuwedzera kuita). Zvinotonyanya kukosha, sulfide inogona kuita nesirivheri ions (inoshandiswa musirivheri - nitrate - based cyanide titrations) kugadzira sirivheri sulfide (Ag₂S) inonaya. Izvi hazvingopedzi maion esirivha chete asiwo zvinovhara magumo eiyo titration, sezvo kuumbwa kweiyo dema Ag₂S precipitate inogona kukanganisa kuonekwa kwesirivha - cyanide complex - based endpoint.

Thiocyanate Ions

Thiocyanate ions (SCN⁻) inogona kuvapo sekuvhiringidza, kunyanya mumasampuli uko kwave kune rimwe divi - kuita kana kusvibiswa. Thiocyanate ions inogona kuita nemaoni esirivheri kuita silver thiocyanate (AgSCN) precipitate. Mune sodium cyanide titration apo sirivheri nitrate inoshandiswa setitrant, kuumbwa kweAgSCN kunogona kutungamira kune yakawandisa fungidziro yeiyo cyanide yemukati kana isina kuverengerwa nemazvo, sezvo maion esirivha anopedzwa mukugadzira ese ari maviri esirivha - cyanide complexes uye sirivheri thiocyanate precipitate.

Zvimwe Zvinopindira

Organic Compounds

vamwe organic makemikari inogona kukanganisa sodium cyanide titration. Semuenzaniso, mamwe aldehydes uye ketoni anogona kuita ne cyanide ions mune nucleophilic yekuwedzera reaction pasi pemamiriro akakodzera. Izvi zvinopedza cyanide ions uye nokudaro zvinokanganisa mhedzisiro yetitration. Mumasamples kubva kumaindasitiri maitirwo arimo mune organic zvinhu, senge mune imwe tsvina yemiti kubva kumakemikari zvinomera zvinogona kunge zvine zvese sodium cyanide uye organic zvinosvibisa, kupindira kubva kune aya organic komisheni kunoda kunyatsotariswa.

Oxidizing uye Kuderedza Agents

Oxidizing agents anogona oxidize cyanide ions. Semuenzaniso, hydrogen peroxide (H₂O₂) inogona kuita neiyo cyanide ions kugadzira cyanate ions (CNO⁻) kana zvimwe zvigadzirwa zvine oxidized. Iyi oxidation reaction inoderedza huwandu hwe cyanide inowanikwa kune titration, zvichikonzera kuyerwa kusiri kweiyo sodium cyanide yemukati. Kune rumwe rutivi, kuderedza vamiririri vanogonawo kukanganisa. Semuyenzaniso, zvinhu zvakaita se sodium sulfite (Na₂SO₃) zvinogona kuita neayoni esirivheri musirivheri - nitrate - based titration, ichidzikisira kuita sirivheri simbi kana kudzika - oxidation - yenyika sirivheri mhando, iyo inokanganisa yakajairika titration maitiro.

mhedziso

Mune sodium cyanide titration analysis, maion simbi, anions akadai sulfide uye thiocyanate, organic compounds, uye oxidizing kana kuderedza agent zvinhu zvinowanzovhiringidza zvinhu. Kuti uwane mhedzisiro chaiyo yetitration, zvinodikanwa kutora matanho akakodzera ekubvisa kana kuderedza mhedzisiro yekukanganisa uku. Izvi zvinogona kusanganisira maitiro ekutanga ekurapa akadai sekusefa, kudhirowa, kana kushandisa masking agents. Kunzwisisa kupindira uku ndiyo nhanho yekutanga yekuvandudza kurongeka uye kuvimbika kwesodium cyanide titration kuongororwa mune akasiyana maindasitiri uye analytical application.