Potassium acetate

Munyu uye esters ose acetic asidhi vanonzi acetates. Vari kazhinji kushandiswa senzira mordant, izvo wemadhai vari pazvinhu faibha. Zvikurukuru, potassium acetate (enderana zita mu Chirungu - Potassium acetate, fanano - potassium munyu) ndiyo ine potassium munyu acetic acid, ane makemikari fomura CH3COOK. Matadza gobvu akaenzana 98,15 g / mol.

Under kwomuzvarirwo ezvinhu ari potassium acetate chinhu chena crystalline upfu kuti hygroscopic, saka mhepo anoparadzira. arambe achirema wayo 1,57 g / cm³. Munyu iri nyore soluble nemvura 100 ml urwa zvishoma kupfuura 200 g munyu pa 20 ° C uye 492 g - pa 62 ° C. Potassium acetate iri nyore soluble mu doro (methanol uye panyaya iyi) uye amoniya, riri insoluble mu Eteri uye acetone. The tembiricha manyowa kuti potassium acetate kuwedzerazve 292 ° C.

Wakagadzirira acetate potassium kuita zvakadaro zvinokosha yeimwe akadai potassium hydroxide (Koh) kana potassium carbonate (K2CO3) pamwe acetic asidhi zvichiguma neutralization maitiro: Koh + CH3COOH → CO2 + CH3COOK + H2O kana kaviri mukutsinhana: K2CO3 + CH3COOH → CO2 + CH3COOK + H2O . For nesimbi vamire electrochemical dzinotevedzana wakasiya rehydrogen, semuenzaniso, potassium kana magnesium, vaine maitiro pamwe acids asiri oxidizing. acids kwakadaro zvinosanganisira acetic acid. Kana interacts, semuenzaniso, magnesium, magnesium acetate inotengwa: MG + 2CH3COOH → MG (CH3COO) 2 + H2. Asi nzira iyi haana zvinobatsira kwegadziriro magnesium kana potassium munyu acetic acid. In chokungopa mamiriro, simbi idzi havapo zvakasikwa, uye potassium nokuda reactivity kwavo zvaanoita nyore nemvura uye oxidized ne mumhepo okisijeni. Asi resimbi zvinodhura chaizvo uye rinoshandiswa kunyange zvishoma kazhinji pane yavaibvisa.

potassium acetate maererano GOST 5820-78 rinoshandiswa pagadzirwe makemikari nesilicon Polymers (silicones - dzaizotungamirira kugadzira kwakaita polymer zvigadzirwa zvinokosha uye zvinovimbisa). Potassium acetate rinoshandiswawo sezvo anowedzera kweShanduro polyurethanes. Imwe nzvimbo inokosha kushandiswa potassium acetate - kushandiswa kwayo somunhu deicer. reagent ichi ane nhamba zvakanakira (zviri zvishoma zvechisimba nekuda ivhu) uye saka unotsiva magnesium chloride kana karusiyamu iri kubudiswa runways panhandare dzendege, uye ayo kungatikanganisa migumisiro pamusoro nesimbi idukusa ari chlorides. Potassium acetate hakukuvadzi kune hukawanika vakawanda, kusanganisira kongiri, simbi, matanda, maiiswa, patsangadzi uye uswa. Asi sezvo mutengo waro wakakwirira kupfuura chlorides, yokupedzisira kazhinji vanova, pasinei zvakatipoteredza kutyorwa dzikawedzera kusakara zvishandiswa. Uyezve, potassium acetate, inzira inobudirira moto-moto uye rinoshandiswa kudzima moto. Rinoshandiswa kuti ukabvisa mafuta.

Potassium acetate inoshandiswa kwete chete maindasitiri muzviruva asiwo mushonga uye zvokudya indasitiri (inoshanda zvisaora E261, kugadzirwa maererano GOST 5820-78). Enzanisa mumwe munyu carboxylic asidhi - karusiyamu acetate - kwete maindasitiri mafomu. It inotengwa chete murabhoritari mamiriro kubudikidza matambudziko acetic asidhi pamusoro karusiyamu carbonate. The kuita iri mberi kusvikira zvakakwana kubviswa carbon dioxide inobvisa: CaCO3 + 2CH3COOH → CO2 ↑ + (CH3COO) 2Ca + H2O. Used (CH3COO) 2Ca chete sezvokudya chirungiso E263 nekuti (sezvo CH3COOK) ane runziro zvisaora.

Kana yokutsiva kurapa nokuda pakurapa chirwere cheshuga ketoacidosis vaishandisa potassium acetate. Zvinogona kudziviswa ketoatsidoticheskaya chirwere cheshuga pakoma, izvo zvinogona kuitika somugumisiro nokuda metabolic acidosis (ph kuderera) kunokonzerwa metabolic zvinetso nokuda pancreatic kemikari kushaikwa (jekiseni). High kuwanda ropa shuga uye ketone miviri izvo yekudyidzana kupfuura vasiri ukoshi ketoatsidoticheskaya kunotungamirira shuga pakoma. potassium acetate, rinoshandiswa sezvokudya chirungiso, sezvo vanokwanisa kuderedza nenhanho acidity kuora bicarbonate. Nokuda kwechikonzero ichi, rinoshandiswa kurapa varwere vane chirwere rokutanga mhando cheshuga.