Potasiuma dichromate

Waiwai potasiuma dichromate loaʻa paha kekahi mau inoa, a, i keʻano nui a uuku o ka alapine (frequency), e hoʻohana 'ia ke kaumaha ma muli o ka kahua o ka i ana o ka waiwai wale. Mea maʻa mau, ke Nine Inch kumumanaʻo o ka loa mau hoʻohana inoa dichromate potasiuma a potasiuma Chrompick. I ka wa e hele mai i ka hanalima hana, akā, i kēia hui i kapa Chrompick. He mea nui e maopopo pono i ke ano o ka pili ana i ka ninau, no ka mea, ma ka maʻamau o ana Chrompick ua i kapa paʻakai dichromate haʻilula Na2Cr2O7 * 2H2O. Nine haʻilula potasiuma bichromate - K2Cr2O7.

Ke physical waiwai o ka potasiuma bichromate penei. Mawaho, keia waiwai o ka alani-nā pōpō nā pōaka, aniani puka olu oia no i mea ee iaaanu aey ma lalo o ka aoao o ke ana wela. A hiki kona waiwai i ka 257 ° C triclinic puka olu oia i ke ano o hookahi nā pōaka, a me ka wā o ka mehana ma luna 257 ° C, e hoʻololi i ka monoclinic ano.

Potasiuma dichromate waiwai i ka mahele heheʻe i ka mahana o ka 396 ° C, a me kona mea ulu ma 500 ° C decomposes waiwai ma K2CrO4, Cr2O3 a me ka oxygen. Potasiuma bichromate i Kekahi Mau umekaumaha mea 2,69 g. / Cm3. Potasiuma dichromate mea nui wailana ma koʻana koko pāʻoihana:

- ma ka wela o ka 0 ° C, 100 nā huna o ka wai, ua pau loa ia mea hoʻoheheʻe 4,6 nā huna o ka potasiuma bichromate;

- ma ka wela ana o 25 ° C, hiki e loa ia ka pono i ka ia nui o ka wai, ua 15,1 nā huna, a ua hoala mai i ka mahana i 50 ° C - o 37,7 nā huna.

I ka waiʻona mai ke kino, e laʻa me, ethanol, potasiuma dichromate iki wailana.

Potasiuma bichromate ano he eutectic - lua wai pāʻoihana a crystallizes ma lalo o ka huna uuku mahana no keia pae ana o waiwai structurally compositional haʻilula o ka a - H2O - K2Cr2O7 me potasiuma bichromate maʻiʻo 4,30% ma ke kaupaonaʻana. Ka mahele heheʻe i ka mahana o kēia hui wale 0,63 ° C a me nā kapuahi e ia ma 104,8 ° C (potasiuma bichromate ma ka pāʻoihana - 52% ma ke kaupaonaʻana).

C komo nei i na waiwai me potasiuma dichromate, reactions lawe wahi i loko oʻakika me Media, ina e loaʻa i ke koʻana koko pāʻoihana. Waiwai ia mea no hoi i ka ikaika oxidizing Agena, no ka mea hoike, ma ka naoh o potasiuma bichromate a me ka luaipele loaa K2SO4 paakai a me ka chromium'okesaside.

Ma ka reacting me sulfuric a me ka nitric nāʻakika potasiuma bichromate polihromaty 'ano apau loa. I ka paio hahana maoli nō nā mea huihuina i loaʻa i kēia hui a me ka hydrogen peroxide e loaa hoopuni pahū nā pōaka peroxide a, ma ka huli, mea nui i ke keʻena o nā pōkā pahū.

Industrially potasiuma bichromate makaukau ua lawe mai ma ka mail naoh me Na2Cr2O7 KCl, ma i ka pāʻoihana mea wela i ka nui wela - ma kahi o 1000 - 1300 ° C.

Potasiuma dichromate ua hoʻohana 'ia, e ho'ākāka' ia ma ka Nine Inch waiwai o ka i luna ma ka hana o kela make i ka lole a me ka ili na hana, ka mea, ua hoʻohana 'ia i loko o tanning ili. Māhele aku palapala noi i loko o ka lāʻau aaioee a me ka manufacturing o ihoiho, i ka hana o ka pyrotechnic nā mea huihuina kiʻi. Inā potasiuma potasiuma bichromate mea hoʻoheheʻe ma sulfuricʻakika, ka mea i hāʻawi mai he nui loa ka hoʻokō pāʻoihana no kaʻauʻau aniani mea hana i loko o ke keʻena hoʻokolohua. E like me ka ke keʻena o ka potasiuma potasiuma bichromate hoʻohana electrolytes ma ka maloo, e like me ka pono me ka metallurgy kaʻina popo inhibitor i eliiaʻi a me kā lākou mau oka a pau.

Chrompick potasiuma - he loaʻawahia hui. Paka ua o ka pāʻoihana ia mea, haule iho la ia i ka paku ole ia wahi o ke kino, e luku aku i ka ili. O uuku nā hoʻohui like o keia waiwai hiki i 'inoʻino loa i ka ÷ naehana hanu'āpana, a hoʻopilikia maoli i ka cartilage ligament'aʻaʻa. Ikeia na hihia o ka hakuʻala poino, ake a me ka gastrointestinal'āpana. No laila, i ke-i? Iecaianoaaiiuo o ka hana me ka potasiuma dichromate e malama ikaika hoʻokō kaiapuni. No E lawe malama, e hoomalu aku i ka ÷ naehana hanu'ōnaehana a me ka ili.