Acid Propanoic. meatotino faaletino ma vailaau. O le faaaogaina, saogalemu o le galuega.

acid Propanoic (isi igoa - acid metiluksusnaya, faasaoina E280, acid propionic) - o se suavai ma caustic aunoa lanu malodorous. O loo i ai le fuafaatatau o vailaau nei: C2H5-COOH.

meatotino faaletino o acid propionic:

1. faaliusuavai vevela -21 °.

2. O le pupuna tulaga e 141 °.

3. O le flash manatu o 54 °.

4. vaega tele gao o 74,08 g / mol.

5. I lalo o tuutuuga tulaga faatonuina, o se suavai colorless.

6. O le vevela o le sulu o le 440 °.

meatotino vailaau o acid propionic:

1. miscible i le vai (H2O) ma solvents faatulagaina.

2. A alu i le kesi acid - o se sui masani o le acids carboxylic faatumulia. E mafai ona esters galogenagidridy, amides, ma isi mea.

History of maua propanoate

na uluai faamatalaina lenei mea i le 1844 e Johann Gottlieb, o le maua o ia i le lotolotoi o le suka oloa faaleagaina. Ona, i se taimi e chemists na saunia lenei acid i ni auala eseese, e aunoa ma le iloaina ai, o le na aumaia i le lotoa lava lea e tasi. I le 1847, o loo maua Jean-Baptiste Dumas e faapea o le mea na maua muamua o le acid lava lea e tasi lea sa ia faamatalaina mulimuli ane pe faapefea acid propanoic, lea fua faatatau - C2H5-COOH.

O a ni auala o le mauaina o propanoate?

I le natura acid propanoic maua i totonu o le suauu.

I alamanuia, o le mea e gaosia e ala i Reppe carbonylation o ethylene i le tali e pei o se taunuuga i le oxidation o hydrocarbons, oxidation catalytic o alu i le kesi aldehyde i totonu o le afioaga o le manganese ions po cobalt.

Foi, o se vaega tele o acid metiluksusnoy mafai ona maua e fua acid acetic, ae metotia po nei o le mauaina o le faia o lenei auala i se puna e lona lua o acid propionic.

e mafai ona saunia lenei mea i le decomposition metabolic o acids amino ma acids puta ua i ai se numera ese o atoms carbon.

Foi tuuina siama acid alu i le kesi o le genus Propionibacterium (o le oloa faaiuga o latou metabolism). o loo maua nei siama i le faiga digestive o ruminants, ma ona o lo latou gaoioiga i le sisi Suetena ua i lona lava tofo tulaga ese.

acid Propionic

E esters ma masima.

Alkaline ma alkaline-lalolagi masima lelei soluble i le vai (H2O), e mafai ona tatala i solvents faatulagaina.

Esters o lenei mea leaga soluble i (H2O) vai ae mafai ona totogi aitalafu faatulagaina miscible.

talosaga

O lenei acid o loo faaaogaina i le mataupu nei:

- tuuina gerbetsidy (f.t.t. dihlorprol, propanol), fualaau oona (fenobolin, ibuprofen), mea patino fagusausau (linaloil-, phenyl-, geranil-, benzyl propionate) mafai ona totogi aitalafu (butyl-, pentyl-, propionate propyl), uga ( polivinilpropionat), surfactants (glycol ethers) ma vinilplastifikatorov;

- talu taofia le acid propionic le tuputupu ae o nisi siama ma suia, o le tele o ua faaaogaina o se faasaoina o meaai i meaai mo tagata ma uma manu. o loo faaaogaina saʻo mai e le oloa mo acid propionic manu po o lona masima (ammonium propionate), ma i oloa ua gaosia mo le tagata e faaaoga kalisiu (propionate kalisiu) po o le sodium (sodium propionate) po o le a masima ai.

Saogalemu i le galuega

O le tulaga matautia autu pe a faaaogaina acid propionic - E mu vailaau e eseese ogaoga.

I suesuega faia i falesuesue manu na aafiaga le lelei e fesootai ma le taumafaina umi acid o propanoic inumaga itiiti o le foliga mai o ulcers i le esophagus ma le manava, lea ua mafua mai i meatotino matautia o le mea. E leʻi maua i le tofotofo e mutagenic acid propionic, carcinogenic, oona ma le leaga mo le totoga fanautama. Faatasi i le tino, o loo tatou iloiloina se mea oxidizes vave metabolized ma ua outputted lea i le tulaga o karaponi carbon.