Inoa mea kūʻai:ʻOxalic acid
ʻAno molekala:C2H2O4
No CAS:144-62-7
Huahana molecular structure:
Hoʻolaha nui ʻia ka waikawa Oxalic i ka mea kanu ma ke ʻano, ʻo ka hapa nui o ka paʻakai oxalic acid.Ua hana mua ʻo CW Scheele i ka oxalate i ka makahiki 1776.
ʻO Oxalate ka waikawa ikaika loa ma waena o ka waikawa dicarboxylic.Ma waho aʻe o ka loaʻa ʻana o nā waiwai maʻamau o ka waikawa carboxylic, ua hoʻemi ʻia ka waiwai a hiki ke hoʻemi nui i ka manganese valence ʻehiku i ka manganese bivalent.Hoʻohana pinepine ʻia kēia waiwai no ka loiloi quantitative o ka potassium permanganate.
5 C2H2O4 + 2 KMnO4 + 3 H2SO4 →K2SO4 + 2 MNSO4 + 8H2O + 10 CO2;
Hiki i ka ʻakika Oxalic ke hoʻemi i ka hao trivalent i hao bivalent.Ma muli o ke kiʻekiʻe o ka solubility o ka hao bivalent i loko o ka wai, hiki iā mākou ke hoʻohana i kēia kumu no ka wehe ʻana i ka lepo ma nā lole.
Hiki i ka ʻakika Oxalic ke hana me ka phosphorus pentachloride e hana i ka phosphorus oxychloride.C2H2O4 + PCl5 → POCl3 + CO + CO2 + 2 HCL.
Hiki i ka ʻakika oxalic ke hana me nā metala he nui e hana i ka paʻakai oxalic acid.Ma waho aʻe o ka paʻakai metala alkali a me nā paʻakai hao bivalent me ke koena o ka paʻakai ʻakika oxalic ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai.ʻO kekahi paʻakai metala, ʻoiai ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hana i ka paʻakikī hiki ke hoʻoheheʻe ʻia i ka wai.
Fe2 (C2O4) 3 + 3 K2C2O4 + 6 H2O →2 K3 [Fe (C2O4) 3] • 6 H2O.
Ma ka hoʻomehana ʻana, hiki i ka metala alkali a me ka honua alkaline metala oxalic acid paʻakai ke lilo i kalapona monoxide a hana i nā carbonates me ka carbonate e hoʻomau ʻia ana i ka hoʻomehana ʻana e hoʻoheheʻe hou ʻia i ka oxide a me ka carbon dioxide.ʻO ka paʻakai oxalic acid o ka nickel, cobalt a me ke kālā hiki ke hana i ka metala ma mua o ka nonmetal oxide.
ʻO nā huahana decomposing o ka oxalate he carbon dioxide, carbon monoxide a me ka wai.
ʻO ka paʻakai oxalate a me ka paʻakai oxalic he mea ʻawaʻawa.ʻO nāʻiole, ma o ka hoʻoponopono waha, he LD50 o 2000~4000 mg/kg.
1. Hiki ke hoʻohana nui ʻia ka waikawa oxalic e like me ka mea hoʻohaʻahaʻa a me ka bleaching agent, mordant no ka pena ʻana a me ka ʻoihana paʻi, hoʻohana pū ʻia i ka hoʻomaʻemaʻe ʻana i nā metala liʻiliʻi, ka synthesis o nā ʻano oxalate ester amide, oxalate a me ka mauʻu, etc.
2. Hoʻohana ʻia e like me ka analytical reagent.
3. Hoʻohana ʻia ma ke ʻano he mea hoʻokalakupua, chromatography analysis reagent, dye intermediates a me nā mea maʻamau.
4. Hoʻohana nui ʻia ʻo Oxalic acid no ka hana ʻana i nā lāʻau lapaʻau e like me nā lāʻau antibiotic a me borneol a me ka solvent no ka unuhi ʻana i ka metala liʻiliʻi, ka mea hoʻohaʻahaʻa a me ka dye, tanning agent, a me nā mea ʻē aʻe. ester, oxalate, a me ka oxamide me diethyl oxalate, sodium oxalate a me ka calcium oxalate i loaʻa ka hua nui loa.Hiki ke hoʻohana ʻia ʻo Oxalate no ka hana ʻana i ka cobalt-molybdenum-alumina catalyst, hoʻomaʻemaʻe i ka metala a me ke kinikini a me ka bleaching o nā textiles.
Hiki iā Chemwin ke hāʻawi i ka nui o nā hydrocarbons nui a me nā mea hoʻoheheʻe kemika no nā mea kūʻai aku ʻoihana.Ma mua o kēlā, e heluhelu i ka ʻike kumu e pili ana i ka hana ʻana me mākou:
1. Palekana
ʻO ka palekana kā mākou mea nui.Ma waho aʻe o ka hāʻawi ʻana i nā mea kūʻai aku i ka ʻike e pili ana i ka hoʻohana palekana a me ka hoʻohana ʻana i ka nohona o kā mākou huahana, ua paʻa pū mākou i ka hōʻoia ʻana e hōʻemi ʻia nā pilikia palekana o nā limahana a me nā mea hana ʻaelike i kahi liʻiliʻi kūpono a hiki.No laila, koi mākou i ka mea kūʻai aku e hōʻoia i ka hoʻokō ʻana i nā kūlana palekana kūpono no ka wehe ʻana a me ka mālama ʻana ma mua o kā mākou hoʻouna ʻana (e ʻoluʻolu e nānā i ka appendix HSSE ma nā ʻōlelo a me nā kūlana kūʻai ma lalo).Hiki i kā mākou mau loea HSSE ke hāʻawi i ke alakaʻi i kēia mau kūlana.
2. Keʻano hoʻouna
Hiki i nā mea kūʻai ke kauoha a hāʻawi i nā huahana mai chemwin, a i ʻole hiki iā lākou ke loaʻa nā huahana mai kā mākou hale hana.ʻO nā ʻano kaʻa kaʻa i loaʻa ke kaʻa kaʻa, kaʻaahi a i ʻole ka halihali multimodal (e pili ana nā kūlana kaʻawale).
I ka hihia o nā koi o ka mea kūʻai aku, hiki iā mākou ke kuhikuhi i nā koi o nā moku a i ʻole nā pahu pahu a kau i nā kūlana palekana / loiloi kūikawā a me nā koi.
3. Ka nui kauoha liʻiliʻi
Inā kūʻai ʻoe i nā huahana mai kā mākou pūnaewele, ʻo ka liʻiliʻi liʻiliʻi he 30 tons.
4. Uku
ʻO ke ala uku maʻamau ka unuhi pololei ʻana i loko o 30 mau lā mai ka invoice.
5. Nā palapala hoʻouna
Hāʻawi ʻia kēia mau palapala i kēlā me kēia hoʻouna:
· Bill of Lading, CMR Waybill a i ʻole nā palapala halihali e pili ana
· Palapala hōʻoia o ka nānā ʻana a i ʻole Conformity (inā koi ʻia)
· Nā palapala pili i ka HSSE e like me nā lula
· Nā palapala dute e like me nā lula (inā pono)
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