iindaba

I-EDTA ikwimo yomgubo omhlophe ocwebezelayo. Oku kulandelayo yinkcazo eneenkcukacha zemo ye-EDTA:

Inkangeleko: Umgubo omhlophe ongenavumba kwaye ongenancasa wekristale.
Ukunyibilika: Akunyibiliki kwi-alcohol nakwi-organic solvents ngokubanzi, kodwa kuyanyibilika emanzini abandayo (ngesantya esicothayo), emanzini ashushu, i-sodium hydroxide, i-sodium carbonate kunye nezisombululo ze-ammonia. Ityuwa yayo ye-alkali metal iyanyibilika emanzini, kwaye ukunyibilika emanzini yi-0.5g/L (25℃).
Iqondo lokunyibilika: Iqondo lokunyibilika liyi-240℃ (ukubola), kwaye abanye abantu bakholelwa ukuba iqondo lokunyibilika liyi-250℃ (ukubola).
Ngamafutshane, i-EDTA ibonakala njengomgubo omhlophe wekristale kubushushu begumbi kunye noxinzelelo, kwaye ineempawu ezithile zomzimba kunye neekhemikhali.

I-Ethylenediaminetetraacetic acid (EDTA) ineendlela ezahlukeneyo zokusetyenziswa, ikakhulu kuquka:

I-Metal ion chelator: Ingenza ii-complexes ezizinzileyo ezinee-ion zesinyithi ezahlukeneyo kwaye isetyenziswa kuhlalutyo lweekhemikhali nakwiilabhoratri ukuphelisa ukuphazamiseka kwee-ion zesinyithi xa kuhlalutywa.
Ishishini lokutya: Njengesongezelelo sokutya, iyazinzisa ezinye izithako ekutyeni kwaye ithintele ukubola kokutya kunye nokutshintsha kombala okubangelwa zii-ion zesinyithi.
Intsimi yezonyango: Isetyenziselwa ukunyanga ityhefu yesinyithi, efana netyhefu yelothe, kwaye unyango lwe-chelation lusetyenziselwa ukukhupha ii-ion zesinyithi ezinobuthi emzimbeni.
Izinto zokuthambisa: Zinzisa izithako kwiifomyula zokuthambisa.
Isicoci: Susa i-calcium, i-magnesium kunye nezinye ii-ion emanzini aqinileyo ukuze uphucule isiphumo sokucoca.
Ukuprinta kunye nokudaya ilaphu: Ukuphucula umgangatho wokudaya.
Ezolimo: Zisetyenziselwa ukuphucula umhlaba nokuphucula ukusetyenziswa kwezichumisi.
Ezinye: Ingasetyenziswa njengesizinzisi kunyango lwamanzi kunye neempendulo ze-PCR, njl.

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Iipropati zeekhemikhali ze-ethylenediaminetetraacetic acid
Iqondo lokunyibilika 250 °C (ngoDisemba) (elikhanyayo)
Iqondo lokubila 434.18°C (uqikelelo oluqikelelweyo)
uxinano 1.46 g/cm3 kwi-20 °C
uxinzelelo lomphunga <0.013 hPa (20 °C)
isalathisi sokuchasana n20/D 1.363
Fp >400°C DIN 51758
ubushushu bokugcina. 2-8°C
ukunyibilika kwe-3 M NaOH: 100 mg/mL
ifom yekristale
i-pka pKa 2 (Ayiqinisekanga); 10.26 (Ayiqinisekanga)
umbala omhlophe ukuya phantse omhlophe
Ivumba Elingenavumba
Uluhlu lwe-PH 2.5 kwi-10 g/l kwi-23 °C
I-PH 2.5 (10g/l, H2O, 23℃)(isilayidi)
Ukunyibilika kwamanzi 0.5 g/L (25 ºC)
λmax λ: 280 nm uAmax: ≤0.25
Ukubola 240 °C
I-Merck 14,3517
I-BRN 1716295
Uzinzo: Izinzile. Ayihambelani nobhedu, ii-alloys zobhedu, i-nickel, i-aluminium, ii-agents ezixidizing ezinamandla, iziseko eziqinileyo
I-LogP -0.836 (ilungisiwe)
Isalathiso se-CAS DataBase 60-00-4 (Isalathiso se-CAS DataBase)

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Ixesha lokuthumela: Agasti-04-2025