acetic acid

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Acetic acid
Acetic acid, also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell. Its structural formula is represented as CH3COOH. Pure, water-free acetic acid (glacial acetic acid) is a colourless liquid that attracts water from the environment (hygroscopy), and freezes below 16.7°C (62°F) to a colourless crystalline solid. Acetic acid is corrosive, and its vapour causes irritation to the eyes, a dry and burning nose, sore throat and congestion to the lungs. It is considered a weak acid due to the fact that at standard temperature and pressure the dissociated acid exists in equilibrium with the undissociated form in aqueous solutions, in contrast to strong acids, which are fully dissociated.
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Acide acétique
L'acide acétique (du latin acetum) ou acide éthanoïque est un acide carboxylique de formule chimique : C2H4O2 ou CH3COOH.
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Essigsäure
Essigsäure, nach IUPAC-Regelung Ethansäure, ist eine farblose, flüssige, ätzende, typisch nach Essig riechende Carbonsäure. Als Lebensmittelzusatzstoff hat sie die Bezeichnung E260. Wässrige Lösungen der Essigsäure werden trivial nur Essig und konzentrierte Essigsäure Eisessig genannt. Der lateinische Name für Essigsäure ist Acidum aceticum. Die Salze der Essigsäure werden als Acetate bezeichnet. In der Biochemie wird der Begriff Acetat dem der Essigsäure vorgezogen, da Essigsäure unter physiologischen Bedingungen größtenteils deprotoniert als Acetat-Anion (CH3COO-) vorliegt.
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Kwas octowy
Kwas octowy (wg obecnej nomenklatury IUPAC kwas etanowy, dawniej kwas metylokarboksylowy) to związek organiczny z grupy kwasów karboksylowych o wzorze CH3COOH.
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Acido acetico
L'acido acetico (conosciuto anche come acido etanoico) è un composto chimico organico la cui formula chimica è CH3COOH, meglio conosciuto per conferire all'aceto il suo caratteristico sapore acre e il suo odore pungente. L'acido acetico puro, privo di acqua (acido acetico glaciale), a temperatura ambiente è un liquido incolore che attrae acqua dall'ambiente (igroscopicità) e che congela al di sotto dei 16,7 °C (62 °F) in un solido cristallino incolore. L'acido acetico è corrosivo, e i suoi vapori causano irritazione agli occhi, infiammazione delle vie respiratorie e congestione dei polmoni, ma chimicamente è un acido debole per via della sua limitata capacità di dissociarsi in soluzioni acquose.
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