Ntau tus neeg yuav khoom sib xyaw peb EDTA ntsev, ua rau cov mis tsis ua haujlwm, muaj kev nyab xeeb thiab cov nqi ntxiv. Hauv qab no yog qhov qhia meej meej ntawm lawv qhov tseem ceeb, thaj chaw siv tau, ua thiab tsis ua rau kev xaiv raug.
1. Kev Saib Xyuas Cov Khoom Tseem Ceeb
表格
| Khoom | Lub Npe | 1% tshuaj pH | Cov yam ntxwv tseem ceeb |
|---|---|---|---|
| EDTA-2 Na | Disodium EDTA | 4.5-6.0 (me ntsis acidic) | Solubility nruab nrab, dav ua raws, universal mild chelator |
| EDTA-4 Na | Tetrasodium EDTA tshuaj | 10.0-11.0 (muaj zog alkaline) | Siab solubility, ceev dissolution, ruaj khov nyob rau hauv alkaline ib puag ncig |
| EDTA-CaNa₂ | Calcium Disodium EDTA | 6.5–7.5 (tsis suav) | Ua ntej- khi nrog calcium, tsis muaj calcium depletion hauv tib neeg lub cev |
2. Cov xwm txheej thov tshwj xeeb & cov cai siv
✅ EDTA Disodium (EDTA-2Na)
Core positioning: Ntau- qib hom phiaj rau zaub mov, tshuaj txhua hnub thiab cov kws tshuaj dav dav
Kev siv tseem ceeb
Khoom noj khoom haus & dej haus: Tiv thaiv oxidation, discoloration thiab tsw degradation; ncua lub neej txee.
Tshuaj pleev ib ce & kev saib xyuas tus kheej: Ua kom cov qauv ruaj khov, tsis txhob nag lossis daus los ntawm cov hlau ions, sib xws nrog cov khoom tu tawv nqaij feem ntau, tshuaj zawv plaub hau thiab emulsion khoom.
General pharmaceuticals: Siv los ua stabilizer rau cov kua hauv qhov ncauj, tshuaj pleev thiab tshuaj pleev ib ce.
Nruab nrab / tsis muaj zog acidic industrial dej kho.
Pros: Khoom noj khoom haus / tshuaj pleev ib ce / chaw muag tshuaj muaj ntawv pov thawj, mob me thiab qis -mob siab, tus nqi- siv tau zoo rau kev siv tsis tu ncua.
❌ Tsis txhob siv rau: Muaj zog alkaline tshuab, kho mob hnyav hlau detox.
EDTA Tetrasodium (EDTA-4Na)
Core positioning: Professional industrial qib rau alkaline ua haujlwm tshuab
Kev siv tseem ceeb
Kev tu vaj tse & hnyav- cov tshuaj ntxuav tes: tshem tawm xeb, nplai thiab hlau av, txhawb kev ntxuav tes.
Kev kho dej: Scale inhibition thiab kev kho dej khib nyiab rau cov tshuab dej alkaline.
Textile printing & dyeing: soften dej, xyuas kom meej txawm dyeing thiab tsis txhob dye flocculation.
Alkaline kua chiv: Chelate kab kawm rau foliar daim ntawv thov.
Pros: Cov dej solubility zoo heev, sai sai, zoo tagnrho rau cov kev daws teeb meem thiab cov kab ntau lawm.
❌ Tsis txhob siv rau: Khoom noj khoom haus, khoom noj hauv qhov ncauj, tawm hauv lub ntsiab- ntawm cov tshuaj pleev ib ce thiab tshuaj. Nws muaj zog alkalinity ua rau khaus thiab corrosion.
✅ EDTA Calcium Disodium (EDTA{0}}CaNa₂)
Core positioning: Qib tshwj xeeb kho mob,tsis muaj kev lag luam lossis pej xeem siv
Kev siv tseem ceeb: Kev kho mob ntawm cov hlau hnyav hnyav (lead, cadmium, mercury thiab lwm yam). Nws tsim - calcium tiv thaiv tib neeg lub cev los ntawm kev poob cov calcium ions tseem ceeb thaum lub sij hawm chelation, zam lub neej - hem cov kab mob electrolyte.
Pros: Physiologically nyab xeeb, tshwj xeeb rau kev kho mob detoxification.
❌ Tsis txhob siv rau: Txhua yam khoom noj, tshuaj pleev ib ce, kev ua liaj ua teb thiab kev lag luam dav dav. Nws muaj tsawg chelate efficiency rau kev xav tau kev lag luam thiab tus nqi siab heev.
3. Kev xaiv ceev ceev daim ntawv
Yog tias koj cov khoom yogkhoom noj khoom haus, tshuaj pleev ib ce, tshuaj ntau, tsis muaj zog acid/neutral qauv→ XaivEDTA-2 Na
Yog koj ua hauj lwm rauindustrial tu, textile, alkaline dej kho, alkaline chiv→ XaivEDTA-4 Na
Yog raukho mob hnyav hlau detoxification nkaus xwb→ XaivEDTA-CaNa₂
4. Kev yuav khoom yuam kev kom zam
Hloov EDTA-2Na nrog EDTA-4Na rau cov tshuaj pleev ib ce/khoom noj khoom haus: Ua rau cov khoom khaus, deterioration thiab tsis ua raws cai.
Siv EDTA-2Na nyob rau hauv high-alkaline industrial kab: Solubility tsis zoo ua rau residue, pipeline blockage thiab kev ua haujlwm tsis zoo.
Yuav EDTA-CaNa₂ rau kev lag luam chelation tsis tu ncua: Cov nqi pov tseg thiab ua tsis tau raws li qhov yuav tsum tau ua.
Sib tov EDTA-4Na nrog cov khoom siv acidic: Ua rau nag lossis daus thiab rhuav tshem tag nrho cov khoom.