Carboxylic acid and chemical properties, such as a carboxyl group can be a hydrogen atom acetic partially ionized into hydrogen ions (protons) and released, resulting in carboxylic acid. Acetic acid is a weak acid in aqueous acetic acid monohydric chemical reaction, acidity coefficient is 4.8, pKa = 4.75 (25 ℃) glacial acetic acid, at a concentration of pH 1mol / L of acetic acid solution (concentration similar household vinegar) of glacial acetic acid is 2.4 What, that only 0.4% of acetic acid molecules are dissociated. Acetic acid reflect: CH3COOHCH3COO- + H + 1, and the indicator effect: make purple litmus test solution turns red glacial acetic acid, so that methyl orange to red. 2, with a base: CH3COOH + NaOH = CH3COONa + H2O2CH3COOH + Cu (OH) 2 = Cu (CH3COO) 2 + 2H2O3, with certain active metal reactions: Mg + 2CH3COOH = Mg (CH3COO) 2 + H2 ↑ Zn + 2CH3COOH = Zn (CH3COO) 2 + H2 ↑ Fe + 2CH3COOH = Fe (CH3COO) 2 + H2 ↑ 4, reacted with some oxides: CaO + 2CH3COOH = (CH3COO) 2Ca + H2OMgO + 2CH3COOH = Mg (CH3COO) 2 + H2OPbO + 2CH3COOH = Pb (CH3COO) 2 + H2O5, and some weak acid reaction: 2CH3COOH + Na2CO3 = 2CH3COONa + CO2 ↑ + H2O2CH3COOH + Na2S = 2CH3COONa + H2S ↑ 2CH3COOH + Na2SiO3 = 2CH3COONa + H2SiO3 ↓ Identification of acetic acid through its odor identification (a common vinegar). If ferric chloride (III), the resulting product is dark red and will disappear after acidification, by the color of the reaction is also able to identify acetic acid. Arsenic trioxide with acetic acid to form an oxidation reaction of dimethyl arsenic, malodorous product can be identified by acid. Acetic acid prices, Zhengzhou Longda Chemical, Dengfeng City, glacial acetic acid provided by the Zhengzhou Longda Chemical Products Co., Ltd. Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/) is located in Hi-tech District, Zhengzhou City, Henan Province Chemical Road 99 (Chemical Road and Rita Road intersection 100 meters south west). Scraps and development in the wave of market economy, the current Zhengzhou Longda Chemical has a high reputation in inorganic acids, enjoy a good reputation. Zhengzhou Longda Chemical acquired the whole network business alliance certification, marking our service and management level has reached a new height. Zhengzhou Longda Chemical staff willing to work with all people of insight and common development, for a better future.