Oxalic acid

Oxalic acidndi chinthu chorganic. Fomu ya mankhwala ndi H₂c₂o₄. Ndi mankhwala a metabolic. Ndi ofooka awiri ofooka. Amagawidwa kwambiri mu chomera, nyama, ndi matupi oyamba. Imagwira ntchito zosiyanasiyana mu zinthu zosiyanasiyana zamoyo. Chifukwa chake, oxalic acid nthawi zambiri amawonedwa ngati wotsutsana ndi mayamwidwe ndi kugwiritsa ntchito zinthu zamchere. The anhydride yake ndi Trioxide.

Makhalidwe:Mapepala opanda utoto kapena ufa wofiirira kapena ufa woyera, oxalic acid wopanda zipatso, oxalic a asidis ndi kaphatikizidwe. Sublimiation pa 150 ~ 160 ℃. Itha kusonkhanitsidwa mu mpweya wouma wouma. 1G imasungunuka mu 7ml madzi, 2ml madzi otentha, 2,8ml out, 100ml ethercrin, 5.5ml glycecy, chloroform ether. 0.1mol / l Njira ili ndi PH ya 1.3. Kuchulukitsa kwachibale (madzi = 1) ndi 1.653. Malo osungunuka 189.5 ℃.

Mankhwala:Oxalic acid, omwe amatchedwanso glycolic acid, amapezeka kwambiri mu zakudya zobzala. Oxalic acid ndi mtundu wopanda mawonekedwe, wosungunuka m'madzi m'malo mwa okhazikika monga ether,

Oxalate amakhala ndi mgwirizano wolimba ndipo ndi mtundu wina wa chelating wothandizira wazitsulo mu chakudya chomera. Pamene oxalic acid amaphatikizidwa ndi zitsulo zina zachilengedwe za alkaline, kususuka kwake kumachepa kwambiri, monga calcium oxalate pamadzi. Chifukwa chake, kupezeka kwa oxalic acid kumakhala kothandiza kwambiri pa bioavailability wa minerals; Pamene oxalic acid amaphatikizidwa ndi zitsulo zina zosinthika, zosungunuka zimapangidwa chifukwa cha mgwirizano wa oxalic acid, ndipo kususuka kwawo kumawonjezeka kwambiri.

Oxalic acid adayamba kugonja pa 100 ℃, mwachangu kwambiri pa 125 ℃, komanso mopitilira mu 157 ℃, ndikuyamba kuwola.

Zitha kuchitidwa ndi alkali, zimatha kupanga kutulutsa, kuyanja kwa acyl, kuyimitsidwa. Kuchepetsa zotsatira kumathanso kuchitika, ndipo kuchepa kwa chakudya kumatha kuchitika pansi pa kutentha. Mafuta a oxhrous oxalic acid ndi hygroscopic. Oxachic acid amapanga njira zosungunuka ndi madzi okhala ndi zitsulo zambiri.

Zofala Zofala:1, sodium oxalate; 2, potaziyamu oxalate; 3, calcium oxalate; 4, okopa oxalate; 5, A NDALAMA ZABWINO Oxalate; 6, Amonium haidrogen oxalate; 7, magnesium oxalate 8, lithum oxalate.

Ntchito:

1. Wothandizira wothandizira, othandiza, oyendetsa, amachepetsa wothandizira. Amagwiritsidwa ntchito potsimikiza Beryllium, calcium, chromium, golimo, golidese, strontium, thonje ndi machesi ena azitsulo. Kusanthula kwa Picocrystal kwa sodium ndi zina. Sinthani calcium, magnesium, thorium ndi zosowa zapadziko lapansi. Njira Yotherfordiotion ya calbibration ya potaziyamu permanganate ndi ma solute soluse. Bulichi. Chida chothandizira. Itha kugwiritsidwanso ntchito pochotsa dzimbiri pazakudya zomanga musanatsutse khoma lakunja, chifukwa khoma la alkiline ndilolimba choyambirira kuyenera kubzala oyakalic.

2. Makampani ogulitsa mankhwala osokoneza bongo omwe amagwiritsidwa ntchito popanga areomycin, streptomycin, borneol, vitamini B12, phenobarbiti ndi mankhwala ena. Kusindikiza ndi Kupanga Mafakitale Ogwiritsidwa ntchito ngati mtundu wa utoto, bulichi, yapakatikati. Makampani ogulitsa plastic popanga pvc, amino pulasitiki, urea - formaldehyde plastics.

3. Kugwiritsidwa ntchito ngati chothandizira pa phenolic rentesis, zovuta zomwe zingachitike mofatsa, njirayi imakhala yokhazikika, ndipo kutalika kwake ndikokulira. Acetone oxalate Solution ikhoza kuwongolera zomwe Epoxy imayendera ndi nthawi yochepa. Amagwiritsidwanso ntchito ngati sichelo ya urea formaldehyde, Melamine formaldehyde remon ph wowongolera. Itha kuwonjezeredwanso mu polyvinyl formaldehyde madzi osinthana ndi magetsi kuti azitha kusintha liwiro louma ndi kulimba. Amagwiritsidwanso ntchito ngati urea formaldehyde chonchive pochiritsa wothandizila wothandizira, chitsulo a ion chelating wothandizira. Itha kugwiritsidwa ntchito ngati kuwonjezera pokonzekera zomata zomata ndi maxidant oxidant pofuna kuthamanga kwa oxidation ndikufupikitsa nthawi.

Monga wopsinjika:

Oxalic acid amagwiritsidwa ntchito makamaka ngati burani yochepetsera othandizira ndi bulichi, yogwiritsidwa ntchito popanga maantibayotiki ndi borneol ndi mankhwala osokoneza bongo, komanso ochepetsa mphamvu, enc.

Oxalic acid amathanso kugwiritsidwanso ntchito popanga cobal-molybdenum-aluminimu caltalysts, kuyeretsa zitsulo ndi mabulo ndi mabulosi.

Amagwiritsidwa ntchito poyeretsa chitsulo ndi chithandizo, mankhwala osokoneza bongo a padziko lapansi, kusindikiza kapangidwe kake ndi kupaka utoto, kukonzanso kwachikopa, zokolola zokongola, ndi zina.

Monga woperekera wothandizira:

Mu kaphatikizidwe ka organics umagwiritsidwa ntchito popanga hydroquinone, pentaerythritol, cobalt oxalate, nickel oxalate, gallic acid ndi zinthu zina zamankhwala.

Makampani opanga mapulaneti popanga pvc, amino pulasitiki, urea - formaldehyde plastics, utoto, etc.

Makampani opanga utoto amagwiritsidwa ntchito popanga maziko obiriwira ndi zina.

Kusindikiza ndi Kupanga Mafakitale amatha kusintha acetic acid, omwe amagwiritsidwa ntchito ngati utoto wa utoto, wothandizidwa.

Makampani ogulitsa mankhwala opanga areomycin, tetracycline, streptomycin, ephedle.

Kuphatikiza apo, oxalic acid amathanso kugwiritsidwanso ntchito pa kaphatikizidwe ka zinthu zosiyanasiyana zoxter, zotsatsa zotsatsa, ndi sodium oxalate, calcium oxalate kwambiri ndi zinthu zowonjezera kwambiri.

Njira:

1. Chisindikizo pamalo owuma komanso abwino. Kutsimikizira mwachisawawa, umboni wamadzi ndi umboni wa dzuwa. Kutentha kosakanikirana sikuyenera kupitirira 40 ℃.

2. Pewani kutali ndi malo osungira ndi zinthu zamchere. Gwiritsani ntchito matumba a polypropylene yolumikizidwa ndi matumba apulasitiki, 25kG / thumba.

Ponseponse, oxalic acid ndi mankhwala ofananira ndi ntchito zambiri m'mafakitale osiyanasiyana. Zinthu zake zimapangitsa kuti likhale chisankho chabwino choyeretsa, chopatuka komanso chofufumitsa, ndipo chimakhala ndi ntchito zingapo m'mawuwo, mawotchi ndi opanga zitsulo. Komabe, kusamala kwa chitetezo kumayenera kumwedwa mukamagwiritsa ntchito mankhwalawa, chifukwa ndi poizoni ndipo amatha kukhala ovulaza ngati sinagwiritsidwe ntchito bwino.