Etidronic Acid/ HEDP/CAS：2809-21-4
Kufotokozera Kwachidule:
Dzina la mankhwala: Etidronic Acid
CAS: 2809-21-4
MF: C2H8O7P2
MW: 206.03
KAYAMBIDWE:
Kuchuluka: 1.45 (60% aq.)
Pofikira: 198~199℃
Chopangidwa choyera ndi kristalo woyera. Chopangidwa ndi mafakitale ndi madzi owonekera opanda utoto kapena achikasu owala. Chimasungunuka mosavuta m'madzi komanso chimasungunuka mu methanol ndi ethanol. Hydroxyethylidene diphosphonic acid ndi chinthu chopangidwa ndi mankhwala ndipo nthawi zambiri chimagwiritsidwa ntchito poyeretsa madzi m'mafakitale, zinthu zoyeretsera m'nyumba komanso zinthu zosamalira munthu payekha.
zofunikira
| Chinthu | Mafotokozedwe |
| Maonekedwe | Krustalo woyera |
| Zogwira ntchito (monga asidi)% | ≥98.0% |
| Zomwe zikugwira ntchito (monga HEDP.H20)% | ≥90.0% |
| PH(1%) | ≤2 |
| Asidi ya phosphoric (monga PO43-)% | ≤0.5 |
| Chloride (monga CI-)ppm | ≤100 |
| Fe ion ppm | ≤5 |
| Asidi ya phosphorous (monga PO33-)% | ≤0.8 |
Kagwiritsidwe Ntchito
Chogulitsachi ndiye chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga ma electroplating opanda cyanide. Chikapangidwa kukhala yankho la mkuwa lopanda cyanide, chimakhala ndi mphamvu yolumikizana bwino poika mwachindunji gawo la mkuwa pa sodium iron. Chophimbacho chimakhala chosalala ndipo chimakhala ndi kuwala kwabwino. Nthawi zambiri, mlingo wa chinthucho wokhala ndi 60% ndi 100 - 120 ml/L. Mlingo wa copper sulfate ndi 15 - 20 g/L. Kuphatikiza apo, musanapange ma electroplating, ikani zigawo zoyika mu yankho la 1% - 2% la chinthuchi kuti zigawo zoyika zikhale zogwira ntchito. Kuyika ma electroplating pambuyo pa sitepe iyi kungapangitse kuti zotsatira zake ziwonjezeke. Hydroxyethylidene diphosphonic acid (HEDP) ndi mtundu watsopano wa electroplating complexing agent yopanda chlorine. Imagwiritsidwa ntchito ngati chinthu chachikulu chokhazikika pamadzi ozizira m'madzi ozizira, kuchita gawo loletsa dzimbiri komanso kupewa kukula. Chogulitsachi ndi chimodzi mwa zinthu zochizira madzi za polyphosphonic acid. Palinso mitundu ina ya zinthu zamtunduwu zomwe zimapangidwa ku China, monga amino trimethylene phosphonic acid (ATMP): [CH2PO(OH)2]3N, ndi ethylenediamine tetra(methylene phosphonic acid) (EDTMP), ndi zina zotero. Ma polyphosphonic acid achilengedwe adapangidwa kumapeto kwa zaka za m'ma 1960 ndipo adadziwika pafupifupi m'ma 1970. Kutuluka kwa zinthu zamtunduwu zochizira madzi kwapangitsa kuti pakhale ukadaulo wochizira madzi kwambiri. Poyerekeza ndi ma polyphosphates osapangidwa, ma polyphosphonic acid achilengedwe ali ndi kukhazikika kwabwino kwa mankhwala, sakhala osavuta kuwathira, amatha kupirira kutentha kwambiri, amafunikira mlingo wochepa wa mankhwalawa, komanso ali ndi mphamvu zoletsa dzimbiri komanso kukula. Ndi mtundu wa zoletsa dzimbiri za cathodic komanso mtundu wa zoletsa za sikelo zosagwiritsidwa ntchito. Akagwiritsidwa ntchito limodzi ndi zinthu zina zochizira madzi, amasonyeza mphamvu yabwino yogwirizana. Ali ndi mphamvu yabwino kwambiri yochepetsera ma ayoni ambiri achitsulo monga calcium, magnesium, copper, ndi zinc. Amakhala ndi mphamvu yabwino yoletsa kugwira ntchito kwa mchere wosapangidwa ndi zitsulozi, monga CaSO4, CaCO3, MgSiO3, ndi zina zotero. Chifukwa chake, amagwiritsidwa ntchito kwambiri muukadaulo wochizira madzi. Ma phosphorylating reagents amagwiritsidwa ntchito poteteza serine ndi pyranose.
Kulongedza ndi Kutumiza
Kulongedza: 25kg malinga ndi zosowa za makasitomala.
Kutumiza: ndi mankhwala wamba ndipo amatha kutumizidwa ndi sitima, nyanja ndi mpweya.
Sungani ndi kusunga
Nthawi yosungiramo zinthu: Miyezi 24 kuyambira tsiku lopangidwa m'maphukusi oyambirira osatsegulidwa, osungidwa pamalo ozizira komanso ouma, kutali ndi dzuwa, madzi.
Nyumba yosungiramo zinthu zopumira mpweya, Youma pang'ono, Yosiyana ndi ma oxidants, ma acid.
