Dzina la malonda:Oxalic acid
Mtundu wa Molecular:C2H2O4
CAS No:144-62-7
Kapangidwe kazinthu zama cell:
Oxalic acid imafalitsidwa kwambiri muzomera m'chilengedwe, yomwe imakhalapo ngati mchere wa oxalic acid.CW Scheele anali ndi nthawi yoyamba kupanga oxalate mu 1776.
Oxalate ndiye asidi amphamvu kwambiri pakati pa dicarboxylic acid.Kupatula kukhala ndi zinthu zambiri za carboxylic acid, ilinso ndi katundu wochepetsera ndipo imatha kuchepetsa manganese asanu ndi awiri a valence kukhala bivalent manganese.Izi nthawi zambiri zimagwiritsidwa ntchito poyesa kuchuluka kwa potaziyamu permanganate.
5 C2H2O4 + 2 KMnO4 + 3 H2SO4 →K2SO4 + 2 MNSO4 + 8H2O + 10 CO2;
Oxalic acid amathanso kuchepetsa chitsulo cha trivalent kukhala chitsulo cha bivalent.Chifukwa cha kusungunuka kwakukulu kwachitsulo cha bivalent m'madzi, tingagwiritse ntchito mfundoyi kuchotsa dzimbiri pa zovala.
Oxalic acid amatha kuchitapo kanthu ndi phosphorous pentachloride kupanga phosphorous oxychloride.C2H2O4 + PCl5 → POCl3 + CO + CO2 + 2 HCL.
Oxalic acid amatha kuchitapo kanthu ndi zitsulo zambiri kuti apange mchere wa oxalic acid.Kuphatikiza pa mchere wamchere wamchere ndi mchere wambiri wa chitsulo ndi oxalic acid mchere womwe susungunuka bwino m'madzi.Mchere wina wachitsulo, ngakhale susungunuka bwino m'madzi, ukhoza kupanga zovuta zomwe zimasungunuka m'madzi.
Fe2 (C2O4) 3 + 3 K2C2O4 + 6 H2O →2 K3 [Fe (C2O4) 3] • 6 H2O.
Potentha, zitsulo zamchere ndi zamchere zamchere zamchere zamchere zimatha kutaya mpweya wa carbon monoxide ndikupanga carbonates ndi carbonate yopitirizabe kutenthedwa kuti iwonongeke kukhala oxide ndi carbon dioxide.Mchere wa oxalic acid wa faifi tambala, cobalt ndi siliva amatha kupanga chitsulo m'malo mwa nonmetal oxide.
Zinthu zowonongeka za oxalate ndi carbon dioxide, carbon monoxide ndi madzi.
Oxalate ndi oxalic acid mchere ndi poizoni.Mbewa, kudzera pakamwa, zimakhala ndi LD50 ya 2000 ~ 4000 mg / kg.
1. Oxalic acid angagwiritsidwe ntchito makamaka ngati kuchepetsa wothandizila ndi blekning wothandizila, mordant kwa utoto ndi makampani kusindikiza, komanso ntchito kuyenga osowa zitsulo, kaphatikizidwe osiyanasiyana oxalate ester amide, oxalate ndi udzu, etc.
2. Ntchito ngati analytical reagent.
3. Ntchito ngati reagents labotale, chromatography kusanthula reagent, intermediates utoto ndi zinthu muyezo.
4. Oxalic asidi zimagwiritsa ntchito popanga mankhwala monga mankhwala ndi borneol ndi zosungunulira yopezera osowa zitsulo, kuchepetsa wothandizila ndi utoto, pofufuta wothandizila, etc. Komanso, asidi oxalic Angagwiritsidwenso ntchito kwa synthesis mitundu yosiyanasiyana ya oxalate. ester, oxalate, ndi oxamide okhala ndi diethyl oxalate, sodium oxalate ndi calcium oxalate okhala ndi zokolola zambiri.Oxalate itha kugwiritsidwanso ntchito popanga cobalt-molybdenum-alumina chothandizira, kuyeretsa zitsulo ndi nsangalabwi komanso kutsuka kwa nsalu.
Chemwin ikhoza kupereka ma hydrocarbon ambiri ambiri ndi zosungunulira zamankhwala kwa makasitomala aku mafakitale.Izi zisanachitike, chonde werengani mfundo zotsatirazi zokhuza kuchita bizinesi nafe:
1. Chitetezo
Chitetezo ndicho chofunikira kwambiri chathu.Kuphatikiza pa kupatsa makasitomala chidziwitso chokhudza kugwiritsa ntchito bwino komanso kusamala zachilengedwe kwa zinthu zathu, tadziperekanso kuwonetsetsa kuti chiwopsezo chachitetezo cha ogwira ntchito ndi makontrakitala chikuchepetsedwa kukhala chocheperako komanso chotheka.Choncho, tikufuna kuti kasitomala awonetsetse kuti miyezo yoyenera yotsitsa ndi kusunga chitetezo ikukwaniritsidwa tisanaperekedwe (chonde onani zowonjezera za HSSE pazogulitsa zomwe zili pansipa).Akatswiri athu a HSSE atha kupereka chitsogozo pamiyezo iyi.
2. Njira yobweretsera
Makasitomala amatha kuyitanitsa ndikutumiza zinthu kuchokera ku chemwin, kapena atha kulandira zinthu kuchokera kumakampani athu opanga.Njira zoyendera zomwe zilipo zikuphatikiza magalimoto, njanji kapena ma multimodal (mikhalidwe yosiyana imagwira ntchito).
Pankhani ya zofuna za makasitomala, titha kufotokoza zofunikira za mabwato kapena akasinja ndikugwiritsa ntchito miyezo yapadera yachitetezo / kuwunika ndi zofunikira.
3. Kuchuluka kwa dongosolo lochepa
Ngati mumagula zinthu patsamba lathu, kuchuluka kwa madongosolo ocheperako ndi matani 30.
4.Kulipira
Njira yolipirira yokhazikika imachotsedwa mwachindunji mkati mwa masiku 30 kuchokera pa invoice.
5. Zolemba zotumizira
Malemba otsatirawa amaperekedwa pakubweretsa kulikonse:
· Bill of Lading, CMR Waybill kapena chikalata china chamayendedwe
· Satifiketi Yowunikira kapena Yogwirizana (ngati pakufunika)
· Zolemba zokhudzana ndi HSSE mogwirizana ndi malamulo
· Zolemba za kasitomu mogwirizana ndi malamulo (ngati pakufunika)
-
Foni
-
Imelo
-
Whatsapp
-
Pamwamba
