Etidronic acid / hedp / CAS: 2809-21-4
Cov lus piav qhia luv luv:
Khoom npe: etidronic acid
CAS: 2809-21-4
Mf: c2h8o7p2
MW: 206.03
Tus qauv:
Ntom ntom: 1.45 (60% AQ.)
Nyem taw tes: 198 ~ 199 ℃
Cov khoom ntshiab yog dawb siv lead. Muaj cov khoom yog tsis muaj xim rau lub teeb daj pob tshab kua. Nws yog yooj yim soluble hauv dej thiab kuj soluble hauv methanol thiab ethanol. Hydroxyeeshlider diphosphonic acid yog cov khoom siv raw tshuaj lom neeg thiab feem ntau siv nyob rau hauv cov khoom siv dej, khoom siv ntxuav cov neeg saib xyuas cov neeg saib xyuas cov tsev neeg.
kev qhia tshwj xeeb
| Yam | Cov lus qhia |
| Kev tshwm sim | Cov Crystal Dawb |
| Cov ntsiab lus nquag (raws li acid)% | ≥98.0% |
| Cov ntsiab lus nquag (raws li hedp.h20)% | ≥90.0% |
| Ph (1%) | ≤2 |
| Phosphoric acid (raws li PO43 -)% | ≤0.5 |
| Chloride (raws li ci-) ppm | ≤100 |
| Fe ion ppm | ≤5 |
| Phosphorous acid (raws li po33 -)% | ≤0.8 |
Kev siv
Cov khoom no yog cov khoom siv raw rau cyanide dawb electroplating. Thaum tsim tawm mus rau hauv ib lub cyanide-dawb tooj liab electroplating tov, nws muaj lub zog zoo rau lub zog thaum ncaj ncaj electratoplating txheej tooj liab tawv ntawm cov hlau tooj liab. Cov txheej yog tus thiab muaj ib qho zoo luster. Feem ntau, cov tshuaj ntawm cov khoom nrog cov ntsiab lus ntawm 60% yog 100 - 120 ml / l. Qhov ntau npaum li cas ntawm tooj liab sulfate yog 15 - 20 g / l. Ib qho ntxiv, ua ntej Electroplating, tshem tawm cov chaw plating hauv 1% - 2% daws ntawm cov khoom no los ua cov plating seem tig mus rau hauv lub xeev actived. Electroplating tom qab cov kauj ruam no tuaj yeem txhim kho cov nyhuv ntxiv. HydroxyLidene diphosphonic acid (hedp) yog hom chlorine dawb dawb Electroplating cov neeg sawv cev. Nws yog siv los ua cov neeg sawv cev tseem ceeb rau cov khoom siv hluav taws xob zoo hauv kev sib ncig lub zog dej txias, ua lub luag haujlwm ntawm kev tiv thaiv corrosion thiab tiv thaiv. Cov khoom no yog ib qho ntawm cov organic polyphosphonic acc cov neeg sawv cev. Kuj tseem muaj lwm yam lwm yam ntawm cov khoom lag luam no tsim nyob rau hauv Suav teb, xws li amino Qhov tshwm sim ntawm cov hom dej no muaj cov dej thev naus laus zis los ntawm cov kauj ruam loj. Piv nrog inorganic polyphosphaates, organic polyphosphonic acids muaj qhov yooj yim ntawm tus neeg sawv cev, thiab kuj muaj cov khoom ntawm ob leeg corrosion thiab cov nplai interibition. Lawv yog hom cathodic corrosion inhibitors thiab kuj yog ib hom ntawm tsis-stoichiometric teev inibitors. Thaum siv ua ke nrog lwm cov neeg sawv cev dej, lawv qhia cov nyhuv zoo tshaj plaws. Lawv tau muaj peev xwm ua tau zoo heev rau ntau yam hlau thiab calcium, magnesium, tooj liab, thiab zinc. Lawv txawm tias muaj kev ua haujlwm zoo ua rau cov neeg muaj txiaj ntsig, xws li caso4, cgsio3, thiab lwm yam. Yog li ntawd, lawv tau siv dav hauv cov dej kho tshuab. Phosphorallating reagents yog siv rau tiv thaiv cov hauv qab thiab pyranose.
Ntim thiab Thauj Khoom
Packing: 25kg raws li cov neeg siv khoom xav tau.
Cov zaub mov xa tuaj: belongs rau cov tshuaj lom neeg thiab tuaj yeem xa los ntawm tsheb ciav hlau, dej hiav txwv thiab huab cua.
Khaws thiab Cia
Txee lub neej: 24 lub hlis txij hnub ua lag luam hauv cov khoom ntim tsis tau ntim rau hauv qhov chaw txias txias tawm ntawm lub hnub ncaj qha, dej.
Qhov chaw ua kom lub tsev rau khoom, tsis muaj kub kom qhuav ziab, sib cais los ntawm oxidants, acids.
