1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) HEDP 90% ufa / HEDP 60% madzi
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP)
CAS No. 2809-21-4
Molecular formula: C2H8O7P2
Molecular kulemera: 206.02
Kalasi: 60% madzi;90% ufa
HEDPndi organophosphoric acid corrosion inhibitor.Ikhoza kusungunula ndi Fe, Cu, ndi Zn ions kuti ipange mankhwala okhazikika a chelating. Ikhoza kusungunula zinthu zowonongeka pazitsulozi.HEDPamawonetsa mulingo wabwino kwambiri komanso zoletsa zowonongeka pansi pa kutentha kwa 250 ℃.HEDPali ndi kukhazikika kwamankhwala kwabwino pansi pa mtengo wapamwamba wa pH, wovuta kuyika hydrolyzed, komanso wovuta kuwola pansi pa kuwala wamba ndi kutentha.Kulekerera kwake kwa asidi / alkali ndi klorini kwa okosijeni ndikwabwino kuposa kwa ma organophosphoric acid (mchere).HEDPamatha kuchitapo kanthu ndi ayoni achitsulo m'madzi kuti apange hexa-element chelating complex, ndi calcium ion makamaka.Chifukwa chake,HEDPali ndi zotsatira zabwino za antiscale komanso zowonekera.Mukamangidwa pamodzi ndi mankhwala ena ochizira madzi, zimawonetsa zotsatira zabwino za synergistic.Mkhalidwe wolimba waHEDPndi ufa wa kristalo, woyenera kugwiritsidwa ntchito m'madera ozizira komanso ozizira.Chifukwa cha chiyero chake chachikulu, chitha kugwiritsidwa ntchito ngati choyeretsera m'magawo amagetsi komanso ngati zowonjezera pamankhwala atsiku ndi tsiku.
HEDPamagwiritsidwa ntchito ngati chiletso ndi dzimbiri pozungulira madzi ozizira, malo opangira mafuta ndi ma boilers otsika kwambiri m'minda monga mphamvu yamagetsi, makampani opanga mankhwala, zitsulo, feteleza, ndi zina zambiri.HEDPamagwiritsidwa ntchito ngati chotsukira zitsulo ndi nonmetal.M'makampani opanga utoto,HEDPamagwiritsidwa ntchito ngati peroxide stabilizer ndi wokonza utoto;Mu electroplating yopanda cyanide,HEDPamagwiritsidwa ntchito ngati chelating agent.Mlingo wa 1-10mg/L umasankhidwa ngati scale inhibitor, 10-50mg/L ngati corrosion inhibitor, ndi 1000-2000mg/L ngati detergent.Nthawi zambiri,HEDPamagwiritsidwa ntchito limodzi ndi polycarboxylic acid.
| Zinthu | Mlozera | |
|---|---|---|
| Maonekedwe | Choyera, Chopanda Mtundu mpaka chotumbululuka chachikasu chamadzimadzi | White crystal ufa |
| Zomwe Zikuchitika (HEDP)% | 58.0-62.0 | 90.0 min |
| Zomwe zilipo (HEDP·H2O)% | - | 98.0 mphindi |
| Phosphorous acid (monga PO33-)% | 2.0 max | 0.8 mx |
| Phosphoric acid (monga PO43-)% | 0.8 mx | 0.5 max |
| Chloride (monga Cl-)% | 0.02 max | 0.01 max |
| pH (1% yothetsera madzi) | 2.0 max | 2.0 max |
| Kachulukidwe (20 ℃)g/cm3 | 1.40 min | - |
| Fe, mg/L | 20.0 max | 10.0 max |
| Ca sequestration (mg CaCO3/g) | 500.0 min | - |
HEDP madzi: 200L pulasitiki ng'oma, IBC (1000L), chofunika makasitomala '.
HEDP olimba: 25kg / thumba, chofunika makasitomala '.
Kusungirako kwa miyezi khumi ndi iwiri m'chipinda chamthunzi ndi malo owuma.
