chloroacetic acid (monochloroacetic acid)
1.The mechanism for catalyzed chlorination of acetic acid to synthesize monochloroacetic acid is studied. The results indicate that the chlorination of acetic acid by using acetyl chloride as a catalyst is a consecutive reaction,and the activation energy is higher for the reaction of acetyl chloride and chloride than chloroacetyl chloride and chloride.
2.Monochloroacetic acid was prepared by using acetic anhydride or sulfur as catalysts to chlorinate acetic acid respectively.
4.Ingold-Taft Equation of the Esterification of 2-Chloroacetic Acid with Alcohols
5.Chlorinated polybutadiene rubber(CBR) containing active chlorine was synthesized when t-butyl hypochlorite was employed as chlorinating agent under organic acid circumstance(formic acid and chloroacetic acid).
6.However, some of strong organic acid, chloroacetic acid(CAA), bromoacetic acid(BAA) and 2,4,6 trinitrophenol(TNP) did not enhance the rate of the stable free radical mediated polymerization.
7.Conclusion The results suggested that chloroacetic acid burns of small area could result in myocardial injuries.
8.The development history of monochloroacetic acid and its present production is introduced briefly. Mainly,the reseach abroad on reaction mechanism of acetic acid chlorination method is summarized,and the reaction mechanism of acid catalyzed enolization of acetyl chloride as the control step is regarded.
9.Using refined cotton, chloroacetic acid, sodium hydroxide and hydrogen peroxide as main feedstock, sodium carboxymethyl cellulose was made by the process of basification, etherification, abstersion and drying.
10.The scale- dissolving agent PEPA was synthesized with chloroacetic acid and polyethylenepolyamine as materials. The optimum synthetic conditions of PEPA were determined as follows: chloroacetic acid amount 5.2 mol, polyethylenepolyamine amount 1.0 mol, NaOH amount 5 .2 mol, reaction time at low temperature 6 h, reaction time under boiling 2 h.
