HEDP Cas 2809-21-4 Etidronic Acid Monohydrate
1-Hydroxyethylidene-1,1-diphosphonic acid HEDP CAS 2809-21-4
1-Hydroxyethylidene-1,1-Diphosphonic Acid (HEDP)
CAS Nr .: 2809-21-4
Cov mis mos molecular: C2H8O7P2
Siv
HEDP yog ib hom cathodic corrosion inhibitor.Piv nrog rau cov inorganic phosphates, nws tuaj yeem sib xyaw nrog sodium molybdate, silicate, zinc ntsev thiab co-polymer feem ntau yog nplai corrosion inhibitor hauv kev kho cov dej txias cyclic, roj teb flash thiab boiler dej .Nws tuaj yeem siv ua sequestrant hauv xab npum thiab complexing tus neeg saib xyuas thiab hlau scour nyob rau hauv electroplating.
Yam ntxwv
HEDP tuaj yeem cuam tshuam rau tsib ions zoo lossis tsis zoo thiab chelate ob-valent hlau ion hauv dej.Yog li nws yuav siv sij hawm zoo scale inhibiting nyhuv.Cov khoom no yog pov thawj tiv thaiv kub, oxidizing thiab siab pH nqi.Nws qhia tau hais tias muaj kev sib koom ua ke zoo kawg nkaus thiab daws qhov pib ua haujlwm thaum sib xyaw nrog lwm cov tshuaj tiv thaiv corrosion thiab scale inhibitors.
Specification
| Qhov tshwm sim | Colorless rau daj ntseg daj pob tshab kua |
| Cov ntsiab lus nquag | ≥60.0% |
| Phosphorous acid (raws li PO33-) | ≤ 2.0% |
| Phosphoric acid (raws li PO43-) | ≤0.8% |
| Chloride (raws li Cl-) | ≤100ppm |
| Qhov ceev (20 ℃) | ≥1.40g / cm3 |
| PH (1% dej tov) | ≤ 2.0 |
| Calcium sequestration | ≥500 mgCaCO3/g |
Kev siv
HEDP tuaj yeem sib xyaw nrog hydroxylaectic acid, PAA, BTA, molybdate, copolymer, zinc ntsev, ua kom tag nrho-organic-alkali lossis qis-phosphor zinc-raws li tus neeg sawv cev ntawm kev kho dej kom siv tau rau txhua yam ntawm cyclic txias dej tshuab sib txawv. los ntawm dej zoo.Qhov koob tshuaj feem ntau yog 2 ~ 10mg / L thaum HEDP siv ib leeg.
Ntim thiab Cia
250kg yas nruas los yog 1250kg IBC, yuav tsum tau muab cia rau hauv txias thiab ventilated chav tsev nrog ib tug txee lub sij hawm ntawm ib xyoos.
Pls hu rau peb kom tau txais COA thiab MSDS.Ua tsaug.
