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I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4

I-Ethylenediaminetetraacetic acid CAS: 60-00-4 Umfanekiso Obonakalayo
  • I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4
  • I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4

inkcazo emfutshane:

I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4
iipropati zeekhemikhali
Le mveliso inyibilika emanzini ibe ngumgubo omhlophe. Ukunyibilika emanzini kwi-25℃ yi-0.5g/L. Ayinyibiliki emanzini abandayo, utywala kunye nezinyibilikisi zendalo ngokubanzi. Iyanyibilika kwizisombululo ze-sodium hydroxide, i-sodium carbonate kunye ne-ammonia.
Indlela yokuvelisa:
Isiphumo se-ethylenediamine kunye ne-chloroacetic acid. Yongeza i-100kg ye-chloroacetic acid, i-100kg yomkhenkce kunye ne-135kg yesisombululo se-sodium hydroxide (30%) kwi-kettle ye-reaction, uze wongeze i-18kg ye-83% ukuya kwi-84% ye-ethylenediamine phantsi kokuxukuxa. Yifake kwi-15°C iyure e-1. Yongeza isisombululo se-30Chemicalbook% sodium hydroxide kwiibhetshi ze-10L rhoqo. Emva kokongeza ngakunye, yongeza enye ibhetshi emva kokuba isisombululo sovavanyo se-phenolphthalein singabonisi bomvu. Gcina kubushushu begumbi iiyure ezili-12. Fudumeza ukuya kuma-90°C kwaye utshintshe umbala nge-activated carbon. Hluza, hlamba intsalela yesihluzo ngamanzi, kwaye ekugqibeleni ulungise ixabiso le-pH ukuya kuma-3 nge-hydrochloric acid egxininisiweyo. Pholisa kwaye unyibilikise, uhluze kwaye uhlambe ngamanzi kude kungabikho mpendulo ye-chloride ion. Iimveliso ezomileyo.
I-reaction ye-ethylenediamine kunye ne-formaldehyde kunye ne-sodium cyanide. Xuba isisombululo samanzi se-60% se-ethylenediamine, isisombululo samanzi se-30% se-sodium cyanide kunye ne-sodium hydroxide, kwaye ugcine umxube kwi-20°C kangangeeyure eziyi-0.5. Emva koko yongeza isisombululo samanzi se-formaldehyde ngendlela ethontsizayo. Emva kwe-reaction, incwadi yamachiza yasuswa kwaye amanzi aphuma. Emva koko phinda olu sebenzi lungasentla, wongeza i-formaldehyde engaphezulu okokugqibela ukuze uvumele i-sodium cyanide ukuba iphendule ngokupheleleyo. Lungisa i-pH ibe yi-1.2 nge-dilute acid. I-white precipitate yavuthuluka, yahluzwa, yahlanjwa ngamanzi, yaza yomiswa kwi-110°C. Fumana imveliso.
I-Ethylenediaminetetraacetic acid (EDTA) sisixhobo esibalulekileyo sokudibanisa. I-EDTA isetyenziswa kakhulu kwaye ingasetyenziswa njengesithako sokumhlopheza ekucutshungulweni kwezinto ezinombala othambileyo, izixhobo zokudaya, izixhobo zokulungisa ifayibha, izongezo ze-cosmetic, izixhobo zokuthintela ukubola kwegazi, izicoci, iziqinisi, iziqalisi ze-polymerization yerabha yokwenziwa, i-EDTA sisixhobo esimele izinto ezixutyiweyo. Ingenza ii-complexes zekhemikhali ezinyibilikayo emanzini ezizinzileyo ezinee-alkali metals, izinto ezinqabileyo zomhlaba kunye nee-transition metals. Ukongeza kwiityuwa ze-sodium, kukwakho neetyuwa ze-ammonium kunye neetyuwa ezahlukeneyo ezifana ne-iron, i-magnesium, i-calcium, i-copper, i-manganese, i-zinc, i-cobalt, kunye ne-aluminium. Nganye kwezi tyuwa inemisebenzi eyahlukileyo. Ukongeza, i-EDTA ingasetyenziselwa ukukhupha ngokukhawuleza iisinyithi ezinobungozi ze-radioactive emzimbeni womntu kwaye idlale indima yokukhupha ityhefu. Ikwayiarhente yonyango lwamanzi. I-EDTA ikwasisalathisi esibalulekileyo, kodwa isetyenziselwa ukuthambisa i-nickel yesinyithi, i-copper, njl. Xa isetyenziswa, kufuneka isetyenziswe kunye ne-ammonia ukuze isebenze njengesalathisi.


  • Igama:I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4
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    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Intshayelelo yemveliso

    I-asidi ye-ethylenediaminetetraacetic CAS: 60-00-4

    iipropati zeekhemikhali
    Le mveliso inyibilika emanzini ibe ngumgubo omhlophe. Ukunyibilika emanzini kwi-25℃ yi-0.5g/L. Ayinyibiliki emanzini abandayo, utywala kunye nezinyibilikisi zendalo ngokubanzi. Iyanyibilika kwizisombululo ze-sodium hydroxide, i-sodium carbonate kunye ne-ammonia.
    Indlela yokuvelisa:

    Isiphumo se-ethylenediamine kunye ne-chloroacetic acid. Yongeza i-100kg ye-chloroacetic acid, i-100kg yomkhenkce kunye ne-135kg yesisombululo se-sodium hydroxide (30%) kwi-kettle ye-reaction, uze wongeze i-18kg ye-83% ukuya kwi-84% ye-ethylenediamine phantsi kokuxukuxa. Yifake kwi-15°C iyure e-1. Yongeza isisombululo se-30Chemicalbook% sodium hydroxide kwiibhetshi ze-10L rhoqo. Emva kokongeza ngakunye, yongeza enye ibhetshi emva kokuba isisombululo sovavanyo se-phenolphthalein singabonisi bomvu. Gcina kubushushu begumbi iiyure ezili-12. Fudumeza ukuya kuma-90°C kwaye utshintshe umbala nge-activated carbon. Hluza, hlamba intsalela yesihluzo ngamanzi, kwaye ekugqibeleni ulungise ixabiso le-pH ukuya kuma-3 nge-hydrochloric acid egxininisiweyo. Pholisa kwaye unyibilikise, uhluze kwaye uhlambe ngamanzi kude kungabikho mpendulo ye-chloride ion. Iimveliso ezomileyo.
    I-reaction ye-ethylenediamine kunye ne-formaldehyde kunye ne-sodium cyanide. Xuba isisombululo samanzi se-60% se-ethylenediamine, isisombululo samanzi se-30% se-sodium cyanide kunye ne-sodium hydroxide, kwaye ugcine umxube kwi-20°C kangangeeyure eziyi-0.5. Emva koko yongeza isisombululo samanzi se-formaldehyde ngendlela ethontsizayo. Emva kwe-reaction, incwadi yamachiza yasuswa kwaye amanzi aphuma. Emva koko phinda olu sebenzi lungasentla, wongeza i-formaldehyde engaphezulu okokugqibela ukuze uvumele i-sodium cyanide ukuba iphendule ngokupheleleyo. Lungisa i-pH ibe yi-1.2 nge-dilute acid. I-white precipitate yavuthuluka, yahluzwa, yahlanjwa ngamanzi, yaza yomiswa kwi-110°C. Fumana imveliso.

    Intsimi yesicelo

    I-Ethylenediaminetetraacetic acid (EDTA) sisixhobo esibalulekileyo sokudibanisa. I-EDTA isetyenziswa kakhulu kwaye ingasetyenziswa njengesithako sokumhlopheza ekucutshungulweni kwezinto ezinombala othambileyo, izixhobo zokudaya, izixhobo zokulungisa ifayibha, izongezo ze-cosmetic, izixhobo zokuthintela ukubola kwegazi, izicoci, iziqinisi, iziqalisi ze-polymerization yerabha yokwenziwa, i-EDTA sisixhobo esimele izinto ezixutyiweyo. Ingenza ii-complexes zekhemikhali ezinyibilikayo emanzini ezizinzileyo ezinee-alkali metals, izinto ezinqabileyo zomhlaba kunye nee-transition metals. Ukongeza kwiityuwa ze-sodium, kukwakho neetyuwa ze-ammonium kunye neetyuwa ezahlukeneyo ezifana ne-iron, i-magnesium, i-calcium, i-copper, i-manganese, i-zinc, i-cobalt, kunye ne-aluminium. Nganye kwezi tyuwa inemisebenzi eyahlukileyo. Ukongeza, i-EDTA ingasetyenziselwa ukukhupha ngokukhawuleza iisinyithi ezinobungozi ze-radioactive emzimbeni womntu kwaye idlale indima yokukhupha ityhefu. Ikwayiarhente yonyango lwamanzi. I-EDTA ikwasisalathisi esibalulekileyo, kodwa isetyenziselwa ukuthambisa i-nickel yesinyithi, i-copper, njl. Xa isetyenziswa, kufuneka isetyenziswe kunye ne-ammonia ukuze isebenze njengesalathisi.

    Inkcazo yolwakhiwo

    I-ethylenediaminetetraacetic acid

    I-CAS: 60-00-4

    Ifomula yemolekyuli: C10H16N2O8

    Ubunzima bemolekyuli: 292.2

    ifom: ekristale

    Iqondo lokunyibilika 250 °C (dec.) (elikhanyayo)
    Iqondo lokubila 434.18°C (uqikelelo oluqikelelweyo)
    Uxinano 0,86 g/cm3

     

    Uxinzelelo lomphunga <0.013 hPa (20 °C)
    Isalathisi sokuhombisa n20/D 1.363
    I-Flash point >400°C DIN 51758

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