Propanoicʻakika. Helu a me ka Nine Inch ka waiwai. Ke ana, maluhia ma ka hana.

Propanoicʻakika (nā inoa - metiluksusnayaʻakika, preservative E280, propionicʻakika) - ia mea he wai a me ka caustic me ka waihoʻoluʻu malodorous. Ka mea, i ka i kēia Nine Inch haʻilula: C2H5-COOH.

Helu waiwai o propionicʻakika.

1. Heheʻe ka mahana o -21 °.

2. ka baila aʻela i wahi ka 141 °.

3. ka waihonaʻike wahi mea 54 °.

4. Na molar nuipa a like ke 74,08 nā huna / kameleona.

5. Ma lalo hae rula, o ka colorless wai.

6. ka mea hō'ā kaʻa ka mahana ka 440 °.

Nine waiwai o propionicʻakika.

1. miscible me ka wai (H2O) a me ke aloha nā'uheheʻe.

2. A propaneʻakika - he typical ka Luna o ka carboxylic nāʻakika paʻa kūhohonu loa. I hana nā mea kemika galogenagidridy, amides, a me nā waiwai.

Mōʻaukala o ka Kaka propanoate

Kēia waiwai i ho'ākāka 'ia ma mua i loko o 1844, ma Johann Gottlieb, ka mea i loaʻa iā ia i loko o ka loko o ke kō hoʻololi iho huahana. A laila, i ka manawa'ē aʻe i hoʻomākaukauʻia kēiaʻakika ma naʻano likeʻole, me ka hoʻomaopopo ia chemists, ka mea i extracted ma ka ia hui. I ka 1847, Jean-Baptiste Dumas ike i ka mua loaa mea e noho ana i ka iaʻakika aʻo ia ma hope hōʻike pehea propanoicʻakika, kahi haʻilula - C2H5-COOH.

He aha e na ano o ka loaa propanoate?

I maoli propanoicʻakika i loaʻa i loko o ka aila.

I hana, o ka waiwai a hua mai la ma Reppe carbonylation o'etolina i ka naoh me he he hopena ia i loko o ka'okesaside o hydrocarbons, catalytic'okesaside o ka propane aldehyde ma ke alo o manganese Ion a cobalt.

Nō hoʻi, hiki ke loaa i ka nui helu o ka metiluksusnoyʻakika ma ka hana aceticʻakika, akā, laekahi 'ano o ka noho ia i hana i kēia ala i ka haumāna kahi o propionicʻakika.

Kēia waiwai hiki ke hoomakaukau i loko o ka metabolic decomposition o'amino nāʻakika a me momoma nāʻakika i pihaʻi me he ōlaʻi helu o ke kalapona nā'ātoma.

Kekahi paka propaneʻakika koʻohune o ka genus Propionibacterium (ka hopena huahana o ko lākou pūnao). i loaʻa kēia mau koʻohune i loko o ka digestive'ōnaehana o ruminants, a no ka mea, o ko lākou mau hana i loko o ka Hawaiian me ka waiū i kona mau hananaʻono.

Propionicʻakika

Ua nā mea kemika a me ka paʻakai.

Kona'ākilikai a me kona'ākilikai-honua paʻakai i pono wailana i loko o ka wai (H2O), mai hoike mai i loko o ke aloha nā'uheheʻe.

Nā mea kemika o keia waiwai poorly wailana ma (H2O) ka wai, akā, miscible me ke aloha nā'uheheʻe.

palapala noi

Kēiaʻakika ua hoʻohana 'ia i loko o ka kēia hihia.

-? Iecaianoaaiiuo gerbetsidy (e laʻa me dihlorprol, propanol), ai '(fenobolin, ibuprofen), kekahi mea ala lako (linaloil-, phenyl-, geranil-, benzyl propionate)'ūheheʻe (butyl-, pentyl-, propyl propionate), Ka lula ea Ke ( polivinilpropionat), surfactants (glycol la o Etera) a me ka vinilplastifikatorov;

- mai ka propionicʻakika inhibits i ka ulu ana o kekahi koʻohune a me ka punahelu, ua nui no ka mea, ua hoʻohana 'ia e like me ka preservative ma ka ai no na kanaka a me ka holoholona. Ke huahana Ua hoʻohana 'ana no ka holoholona propionicʻakika a me kona paʻakai ('amoniuma propionate), a ma huahana a i ua hanaʻia ai no ke kanaka hoʻohana kalipuna (kalipuna propionate) a me ka paʻakai (paʻakai propionate) a me ka paakai o ia mea.

Maluhia o ka Lehulehu ma ka hana

Ka weliweli ka papa kuhikuhiE ka wā hoʻohana propionicʻakika - Ua Nine Inch'ā o ka loli iki ana oolea.

Ma haʻawina mālama 'ia ma ka keʻena hoʻokolohua holoholona wale io hopena pili me ka lōʻihi-makahiki hokii, o ka poe liilii, nā māhele propanoicʻakika i keʻano o ulcers ma ka esophagus a me ka opu, i ua kena ae la e corrosive waiwai o ka waiwai. Ua Uaʻaʻole i loaʻa i loko o ka ho okolohua e propionicʻakika mea mutagenic, carcinogenic,ʻawahia a me ka hewa no ka reproductive nā loko. Noho ma ke kino, ua e noʻonoʻo i ka waiwai oxidizes hoʻomaka koke metabolized a ua laila outputted i loko o ka palapala o ka o carbon dioxide.