Etidronic Acid/CAS: 10192-30-0
Kev Piav Qhia Luv:
Khoom npe: Etidronic Acid
Hom: ZA-N
CAS:2809-21-4
MF:C2H8O7P2
MW: 206.03
QAUV:
Qhov Ceev: 1.45 (60% aq.)
Lub ntsiab lus yaj: 198 ~ 199 ℃
Cov khoom ntshiab zoo li cov siv lead dawb, thaum qib kev lag luam yog cov kua tsis muaj xim rau daj daj ntseg. Nws yooj yim yaj hauv dej, methanol thiab ethanol. 1-Hydroxyethane-1,1-diphosphonic acid yog cov khoom siv tshuaj lom neeg, feem ntau siv rau hauv kev kho dej hauv kev lag luam, cov khoom siv ntxuav hauv tsev thiab cov khoom siv tu tus kheej.
cov lus qhia tshwj xeeb
| YAM KHOOM | Cov Lus Qhia Tshwj Xeeb |
| TEJ YAM TSEEM CEEB | Hmoov siv lead ua dawb |
| Cov ntsiab lus nquag (HEDP)% | 90.0 feeb |
| Cov ntsiab lus nquag (HEDP · H2O)% | 98.0 feeb |
| Phosphorus acid (raws li PO33-)% | 0.8 siab tshaj |
| Phosphoric acid (raws li PO43-)% | 0.5 siab tshaj |
| Chloride (raws li Cl-)% | 0.01 siab tshaj |
| pH (1% dej tov) | 2.0 siab tshaj plaws |
| Fe, mg/L | siab tshaj 10.0 |
| XAUS LUS | TXHAIS LUS |
Kev Siv
Cov khoom no yog cov khoom siv tseem ceeb rau kev siv hluav taws xob uas tsis muaj cyanide. Thaum muab sib xyaw ua ke rau hauv cov tshuaj electroplating tooj liab uas tsis muaj cyanide, nws tuaj yeem ncaj qha rau cov txheej tooj liab rau ntawm cov khoom siv sodium-hlau nrog kev nplaum zoo heev. Cov txheej txheej muaj qhov chaw du thiab xim ci ntsa iab. Feem ntau cov tshuaj 60% yog 100 txog 120 ml ib liter, thiab cov tshuaj tooj liab sulfate yog 15 txog 20 grams ib liter. Tsis tas li ntawd, kev muab cov khoom plated tso rau hauv 1% txog 2% cov tshuaj ntawm cov khoom no kom ua kom lawv qhov chaw ua haujlwm ua ntej electroplating tuaj yeem txhim kho cov nyhuv electroplating.
Hydroxyethylidene Diphosphonic Acid (HEDP) yog ib hom tshuaj electroplating complexing tshiab uas tsis muaj chlorine. Nws ua haujlwm ua tus tswj dej zoo tseem ceeb hauv cov dej txias thiab ua haujlwm hauv kev tiv thaiv xeb thiab tiv thaiv cov nplai. Nws yog ib qho ntawm cov tshuaj kho dej organic polyphosphonic acid. Muaj lwm cov khoom lag luam hauv tebchaws ntawm hom no, xws li Amino Trimethylene Phosphonic Acid (ATMP) nrog cov mis \([CH_2PO(OH)_2]_3N\), Ethylene Diamine Tetra Methylene Phosphonic Acid (EDTMP), thiab ntau ntxiv.
Cov kua qaub polyphosphonic yog ib pawg ntawm cov neeg sawv cev kho dej uas tau tsim nyob rau xyoo 1960s thiab tau lees paub nyob ib puag ncig xyoo 1970s. Kev tshwm sim ntawm cov neeg sawv cev no tau ua rau cov thev naus laus zis kho dej zoo heev. Piv nrog cov inorganic polyphosphates, cov kua qaub polyphosphonic muaj kev ruaj khov tshuaj zoo heev, tiv taus hydrolysis, ua siab ntev kub, tsawg koob tshuaj, thiab ua ke corrosion thiab scale inhibition kev ua tau zoo.
Lawv ua haujlwm ua cov tshuaj tiv thaiv kev xeb cathodic thiab cov tshuaj tiv thaiv tsis-stoichiometric. Thaum sib xyaw nrog lwm cov neeg sawv cev kho dej, lawv muab cov teebmeem synergistic zoo. Lawv qhia txog lub peev xwm chelating zoo heev rau ntau cov hlau ions suav nrog calcium, magnesium, tooj liab thiab zinc, thiab kuj muaj cov teebmeem deactivation zoo rau cov ntsev inorganic ntawm cov hlau no xws li calcium sulfate (\(CaSO_4\)), calcium carbonate (\(CaCO_3\)) thiab magnesium silicate (\(MgSiO_3\)). Yog li ntawd, lawv tau siv dav hauv kev kho dej.
Phosphorylation reagent rau kev tiv thaiv serine thiab pyranose.
Ntim thiab Xa Khoom
25KG / Nruas los yog raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
