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Chromic Acid

Hoʻoponopono ʻano hoʻoponopono

Ka ho'oholo 'ana o ka chromic acid ma loko o ka ea: ua ohi 'ia ka la'ana e ka kānana, ho'ohehe'e 'ia i loko o ka waikawa sulfuric, a laila ho'oholo 'ia e ka colorimetry ma hope o ka ho'ohui 'ana i ka diphenylcarbazide (NIOSH method).

Ka hoʻoholo ʻana o ka ʻakika chromic i loko o ka wai: lawe ʻia ka hāpana a hoʻoholo ʻia e ka atomic absorption spectrometry a i ʻole colorimetry.

ʻO ke ʻano o ka hoʻokuʻu ʻana i ka ʻōpala: ua hoʻololi ʻia ka wai ʻōpala chromic acid i trivalent chromium ma hope o ka hoʻohaʻahaʻa kemika, a ua hoʻoponopono ʻia ka pH waiwai o ka hopena e hana i ka precipitate, a hoʻopaʻa ʻia ka wai e like me ka ʻōpala kemika.

Hoʻohana hoʻoponopono

ʻO Chromic acid ka wai hoʻomaʻemaʻe maʻamau i hoʻohana ʻia i loko o ka hale hana.Loaʻa iā ia ka acidity a me ka oxidizability.Hiki iā ia ke wehe i ka lepo a me nā mea hiki ʻole ke hoʻoheheʻe ʻia mai nā paia o loko a me waho o nā mea hoʻokolohua.ʻO ka maʻamau, loaʻa ka hopena holoi ma o ka hoʻohui ʻana i ka potassium dichromate i loko o ka waikawa sulfuric concentrated, akā ʻo ka hexavalent chromium he mea pōʻino i ke kaiapuni, a i kekahi manawa ua hōʻino ʻia ka mea hana i loko o ke kaiapuni acidic ikaika, no laila ua hoʻemi ʻia ka hoʻohana ʻana o ka chromic acid lotion.

Hiki ke hoʻohana ʻia ka chromic acid ma ke ʻano he oxidant.Hiki ke hoʻokahe ʻia ka nui o nā mea ola e ka chromic acid, a ua hoʻomohala ʻia nā mea hoʻomake he nui ma muli o ka hexavalent chromium.Jones reagent: he wai wai o ka chromic acid, sulfuric acid, a me ka acetone e hoʻoheheʻe ai i nā ʻawaʻawa mua a me ka lua i nā ʻakika carboxylic a me nā ketone me ka pili ʻole i nā paʻa unsaturated.Pyridinium chloride chromate: hoʻomākaukau ʻia e ka chromium trioxide a me ka pyridine hydrochloride, hiki iā ia ke hoʻohemo i ka waiʻona mua i ka aldehyde.Collins reagent: ka hoʻohui ʻana o ka chromium trioxide a me ka pyridine.

Hiki ke hoʻohana ʻia ka ʻakika Chromic no ka hoʻopaʻa ʻana i ka chromium, ka maʻemaʻe kiʻekiʻe o ka metala chromium, ka puaʻa, ka mordant, ka lāʻau lapaʻau a me ka hui lanahu, a i ka hana ʻana i kekahi mau aniani a me nā aniani kala.


Ka manawa hoʻouna: Oct-24-2020