Arsenic acid: formula Halabuurka kiimikada. walax qatar

Raadka kala duwan kiimikada jirka insaanka waa la qiyaasi karin. Inta badan oo naga mid ah oo loo yaqaan xeryahooda ama waa dhexdhexaad ah, iyo ka ciyaaraan door wanaagsan ee nolosha aadanaha. Laakiin waxaa jira koox ka mid ah walxaha, oo ka dhigan halis adag ku tahay caafimaadka. Waxay kala qaybsan yihiin fasalo dhowr. Waxaa loo tixgeliyaa in this article arsenic acid - mid ka mid ah kiimikada sunta ah. Sida laga soo xigtay qoondaynta hadda aqbalay, waxaa ka mid ah fasalka labaad ee khatarta sare leh, oo ay la socdaan chloroform, hogaanka iyo lithium xeryahooda. Waxaan ku baran sifooyinka acid arsenic faahfaahin dheeraad ah.

Qaab dhismeedka kelli iyo gobolka jirka ee arrinta

Tani xarunta xaaladaha caadiga ah waxa uu leeyahay qaab-dhismeedka crystalline ah. In tribasic ah, arsenic acid, kuna waari dhexdeeda H formula ₃ Aso ₄ ayaa labada sare iyo cusbada acid. Tusaale ahaan, potassium gidroarsenat - K ₂ HAsO _4, sodium digidroarsenat - NaH ₂ Aso _4, lithium arsenate - Li ₃ Aso _4. Calcining acid arsenic, arsenic helay gemipentoksid yeedhay pentoxide arsenic. Uu kiristaalo hufan oo cad u sameeyaan tiro hallawda, waa liidata L. biyo.

dissociation

H3AsO _4, oo ay la socdaan acid formic iyo hydroxide hogaanka dhexdhexaad ah waa elektrolytka daciif ah. Sidaas darteed, in miiska ee acids waaweyn ionization ortomyshyakovaya acid waxay leedahay saddex geysid dissociation: 5.6 x 10 ^-3, 1.5 x 10 ^-7 iyo 3, 89 x 10 ^-12. tilmaamayaashan tiro sifaha xoogga acid. Iyadoo la tixraacayo geysid dissociation in tiro ka mid ah acids imanba H ₃ Aso ₄ degan meel u dhaxaysa chromium iyo acids midabyo. farmashiye Ruush experimenters AL iyo I. L. Agafonovy diyaariyey hadal xisaabta, kuna waari dhexdeeda xiriirka ka soo jeeda ugu horeysay oo joogto ah dissociation labaad ee arsenic acid ka heerkul ah laga bilaabo 0 ° C ilaa 50 ° C.

guryaha Gaar ahaan kiimikada

Degree ee lagu qayilo ee atamka arsenic dhismaha Britain ee acid, waa 5. Waxaa loola jeedaa in xaqiiqda ah in xarunta iniinahoodu ku dhex jiraan falgalka kiimikada la walxaha kale muujiyaan guryaha oksidheeyeyaal ah. Sidaas darteed, inta lagu guda jiro ay la dhexgalo iodide potassium ku simaha sida wakiilka ah yaraynta, in dhexdhexaad ah acidic waxaan ka heli arsenious acid waa H ₃ Aso ₃ ka mid ah waxyaabaha falcelinta. Xusuustaa acid arsenic in, kuna waari dhexdeeda H formula ₃ Aso _{4 waa} tribasic, iyo halkan, dareen diidmo leh saldhig alkali ama beelaya, waxay ku siin karaan saddex nooc ee cusbada, dhexdhexaad ah, hydro- iyo digidroarsenaty. reaction tayada si Aso ₄ ^3- udhigo in chemistry gorfaynta ee dhexgalka laftiisa waa acid arsenic ama cusbada ay la cusbada oo lacag milma, sida amooniyam. Sidaas darteed of logu roobab Ag ₃ Aso ₄ midabka kafeega.

Habka Iodometric waayo go'aanka arsenic acid

In kimistari gorfaynta, hawl muhiim ah waa in lagu ogaado kiimiko ah in xal ah. Arsenic acid, kiimikaad oo aynu hore u wada hadleen, waxaa lagu ogaan karaa iodometry micromethod. Si 1 ml ee ay xal loo daadshay mug isku mid ah 4N. aashito iyo 1 ml of xal 4% of iodide potassium ah. Waxa asaasay sesquioxide arsenic Sida ₂ O _{3, mass} of taas oo ka yar tiro adag taranta of reagents mar walba waa isku mid oo waa loo siman yahay si 0,5746 mg.

Awoodda oksidheeyeyaal ah arsenic acid

Sida la og yahay, H ₃ Aso _{4 sida} acid orthophosphoric, elektrolytka xoog ah oo dhexdhexaad ah. Her kiristaalo hufan oo cad yihiin deliquescent iyo dejiya 2 saac ₃ Aso ₄ x H ₂ O. Its cusbada sameeyay la Biraha alkali (sida celceliska, iyo acid ah), in xal aqueous leeyihiin pH ka weyn 7. Arsenates lithium, potassium, sodium iyo ammonium dhaba L. biyo, iyo inta kale ee cusbada Dhexe ma milaan waxa ku jira. acid arsenic - oxidizer wanaagsan. In reactions redox, waxaa la soo celiyey acid ee arsenous ama arsine.

H ₃ Aso ₄ ⁺ 2e + 2 saac + = H ₃ Aso ₃ + H ₂ O

H ₃ Aso ₄ ⁺ 8e + 8 saacadood + = Ash ₃ + 4H ₂ O

Intaas waxaa sii dheer, arsenic acid dhaba oxidizes Biraha kala duwan, iodide sulfite iyo acid, iyo tayadda hydrogen.

Diyaarinta arsenic acid

Under xaaladaha shaybaarka, H ₃ Aso ₄ waxaa laga heli karaa by ficil sesquioxide arsenic la nitric acid hoos kululaynta. badeecada la ogaado xabagta nitrus iyo H ₃ Aso _4. Hab kale oo ka mid ah diyaarinta - waa kala diridooda ku biyo xabagta arsenic. Inta badan loo isticmaalo si ay u hesho qayilo isku mar iyo hydrolysis trialkilarsenitov kululaynta ilaa 50 ° C xal oo hydrogenperoxid ah. Isla, isku dar ah falcelinta laga saaro biyaha iyo khamriga. Xalka ahaa ka dibna la uumibixiyey oo helay khayroon daahirnimo sare arsenic acid. In dabiiciga ah, wax xumu for arsenic acid waa macdan arsenolite iyo arsenopyrite, taas oo ay hodan ku yihiin kayd ah Chabrovsk iyo gobolka Chita ee Ruushka.

Codsiga H3AsO4

Marka la eego xaqiiqada ah in acid ortomyshyakovaya waa mid ka mid ah sunta ugu xooga badan. Its codsiga in industry iyo nolol maalmeedka waa xaddidan. cusbo badan - arsenates, kuwaas oo sumoobo waa wax badan ka yar yahay kii ugu H ₃ Aso _4. Sayidka, in industry ee processing qoryo sulfate zinc iyo pentachlorophenol cusbo sodium, arsenic acid waxaa loo isticmaalaa daaweynta ka sameeyey qori. Habkani yaraynaysaa khasaaraha ka baabi'inta caabuq fangas cellulose iyo dirxiga of lamid, iwm qoryo. In H daawada ₃ Aso ₄ waxaa loo isticmaalaa in ay "Atoxil" diyaarinta daaweynta cudurada protozoal, sida giardiasis, balantidiasis, isosporiasis.

Waa in la ogaadaa in dadka qaba cudurka, kuwaas oo cudurada sannadihii la soo dhaafay ayaa u kordhay. Waxaa jira sababo dhowr ah - tusaale ahaan, cudurka by cunto ka kooban protozoa kudka, by qaniinyada cayayaanka ama galmada. Arsenic acid waxaa loo isticmaalaa sida laga bilaabo wax in geeddi-soo-saarka ee muraayadaha indhaha ka, iyo sidoo kale in injineernimada korontada. H derivative ₃ Aso ₄ - ay cusbo sodium, waxaa si guul leh codsatay in maqaarka iyo Qaaxada. Xeryahooda loo isticmaalo arsenic ilkaha (Jinka arsenic) sida daroogada loo isticmaalo hoos dareenka xanuun ee dareemaha barar ku kor u qaadidda ka qaadaan kanaalka ilig.

tallaabada of acid ah jirka insaanka

Sida hore loo sheegay, H ₃ Aso ₄ ka mid ah ay halis fasalka labaad kordhay - walxaha aadka u khatarta ah. Waxaa loo tixgeliyaa halis ah qiyaasta labadaba acid iyo cusbada ay kala duwan ka soo 15 ilaa 150 mg halkii kiilo ee jirka aadanaha. Oo ay la socdaan saamaynta caadi sun ah, arsenic acid sababa galleeyda maqaarka iyo xub-axaleedka ee xubnaha gudaha, sambabada, caloosha, xiidmaha.

In shaybaarka, in tijaabo la arsenate iyo H ₃ Aso ₄ ayaa loo baahan yahay in la isticmaalo gacmo gashi ilaaliya, oo waxay isku tijaabo ayaa la sameeyey daboosho buurka ah. In the case of heerka sumoobo gacanta ku xadgudbay nidaamka enzyme ay, sida inactivation of falgalka. In aadanaha, arsenate sumowga keenaysaa in paresis ama xataa curyaannimo. In chemotherapy cudurka kansarka la non-waafaqsanaanta daawada kacmaha daroogada iyo xaaladaha lagu sumoobo miarsenolom novarsenolom duubay. Gargaarka degdegga ah ee loogu talagalay cusbada sumowga of arsenic acid waa lavage gastric degdeg ah (tus, unitiola sodium ama Silicon dioxide diyaarinta).

Si looga hortago kelyaha ba'an, kelyaha loo qoro. Sida le ah ka sokow xal unitiola 5%, waxaa suurtagal ah in la isticmaalo safener Strizhevskaya. Ka hor inta ay ka imanayaan gargaarka degdegga ah ee guriga si loo yareeyo heerka sarkhaan waxaa loo isticmaali karaa xal qaarna, ka dibna u abaari matag iyo calool dhaqmo. Dhammaan tallaabooyinka daweynta waa in la fuliyaa iyadoo raacaysa nasasho adag sariir hoos kormeer caafimaad.