EDTA yog nyob rau hauv daim ntawv ntawm cov hmoov dawb crystalline. Cov hauv qab no yog cov lus piav qhia ntxaws txog daim ntawv ntawm EDTA:

Tsos: Dawb tsis muaj ntxhiab thiab tsis muaj saj crystalline hmoov.
Kev yaj: Tsis yaj hauv cawv thiab cov kuab tshuaj organic dav dav, tab sis yaj hauv dej txias (qeeb qeeb qeeb), dej kub, sodium hydroxide, sodium carbonate thiab ammonia kua. Nws cov ntsev hlau alkali yaj hauv dej, thiab kev yaj hauv dej yog 0.5g / L (25 ℃).
Lub ntsiab lus yaj: Lub ntsiab lus yaj yog 240 ℃ (kev lwj), thiab qee tus neeg ntseeg tias lub ntsiab lus yaj yog 250 ℃ (kev lwj).
Hauv kev xaus lus, EDTA zoo li hmoov dawb crystalline ntawm chav tsev kub thiab siab, thiab muaj qee yam khoom siv lub cev thiab tshuaj lom neeg.

Ethylenediaminetetraacetic acid (EDTA) muaj ntau yam kev siv, feem ntau suav nrog:

Cov hlau ion chelator: Nws tuaj yeem tsim cov khoom sib xyaw ruaj khov nrog ntau yam hlau ions thiab siv rau hauv kev tshuaj ntsuam tshuaj thiab chaw soj nstuam kom tshem tawm kev cuam tshuam ntawm cov hlau ions ntawm kev tshuaj ntsuam.
Kev Lag Luam Khoom Noj: Ua ib yam khoom noj khoom haus ntxiv, nws ua kom qee cov khoom xyaw hauv cov khoom noj khoom haus ruaj khov thiab tiv thaiv kom cov khoom noj khoom haus puas tsuaj thiab tsis muaj xim los ntawm cov hlau ions.
Kev Kho Mob: Nws yog siv los kho cov hlau lom, xws li cov hlau lead lom, thiab chelation therapy yog siv los tso cov hlau lom ions tawm ntawm lub cev.
Tshuaj pleev ib ce: Ua kom cov khoom xyaw ruaj khov hauv cov mis tshuaj pleev ib ce.
Tshuaj ntxuav: Tshem tawm cov calcium, magnesium thiab lwm yam ions ntawm dej tawv kom txhim kho qhov ntxuav.
Kev luam ntawv thiab zas xim rau ntaub: Txhim kho qhov zoo ntawm kev zas xim.
Kev Ua Liaj Ua Teb: Siv rau kev txhim kho av thiab txhim kho kev siv chiv.
Lwm tus: Nws kuj tseem siv tau ua tus stabilizer hauv kev kho dej thiab PCR cov tshuaj tiv thaiv, thiab lwm yam.

Cov Khoom Siv Tshuaj Ethylenediaminetetraacetic acid
Melting point 250 °C (dec.) (lit.)
Kub taw tes 434.18°C (kwv yees li qub)
qhov ceev 1.46 g/cm3 ntawm 20 °C
siab ntawm cov pa dej <0.013 hPa (20 °C)
Qhov ntsuas qhov ci ntsa iab n20 / D 1.363
Fp >400°C DIN 51758
Qhov kub cia khoom: 2-8°C
Kev yaj tau 3 M NaOH: 100 mg/mL
tsim cov pob zeb crystalline
pka pKa 2 (Tsis Paub Tseeb); 10.26 (Tsis Paub Tseeb)
xim Dawb mus rau yuav luag dawb
Tsw tsw ntxhiab
PH Ntau Yam 2.5 ntawm 10 g/l ntawm 23 °C
PH 2.5 (10g/l, H2O, 23℃)(dej sib xyaw)
Kev yaj dej 0.5 g/L (25 ºC)
λmax λ: 280 nm Amax: ≤0.25
Kev lwj ntawm 240 ° C
Merck 14,3517
BRN 1716295
Kev Ruaj Ntseg: Ruaj khov. Tsis sib haum nrog tooj liab, tooj liab alloys, nickel, txhuas, cov neeg sawv cev oxidizing muaj zog, cov hauv paus muaj zog
LogP -0.836 (est)
CAS DataBase Reference 60-00-4 (CAS DataBase Reference)

Cov Ntaub Ntawv Tiv Tauj

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