Other names 2-Chloroacetic acid 2-Chloroethanoic acid. Name Formula K a1 pK a1 K a2 pK a2 K a3 pK a3 K a4 pK a4; Acetic acid: CH 3 CO 2 H: 1.75 × 10 −5: 4.756-----Arsenic acid: H 3 AsO 4: 5.5 × 10 −3: 2.26: 1.7 × 10 −7: 6.76: 5.1 × 10 −12: 11.29--Benzoic acid: C 6 H 5 CO 2 H: 6.25 × 10 −5: 4.204-----Boric acid Systematic IUPAC name. General information; Classification & Labelling & PBT assessment; Manufacture, use & exposure In the second there is also an electronegative chlorine atom nearby to draw more charge towards itself. Chloroacetic acid. Nanomaterial agglomeration / aggregation; Nanomaterial crystalline phase; Nanomaterial crystallite and grain size; Nanomaterial aspect ratio / shape; Nanomaterial specific surface area; Nanomaterial Zeta potential EC number: 201-178-4 | CAS number: 79-11-8 . Identifiers CAS Number. Dissociation constant; Viscosity; Additional physico-chemical information; Additional physico-chemical properties of nanomaterials . The dissociation equilibrium reaction for chloroacetic acid is: ClCH2COOH <-----> ClCH2COO(− ) + H(+), The acid-dissociation equilibrium constant is: Chloroacetic acid EC Inventory, C&L Inventory, REACH pre-registration, Other, CAD - Chemical Agents Directive, Art. … In acetic acid, the anion produced by dissociation is CH3-COO-; in chloroacetic acid it is CH2Cl-COO-. Display Name: Chloroacetic acid EC Number: 201-178-4 EC Name: Chloroacetic acid CAS Number: 79-11-8 Molecular formula: C2H3ClO2 IUPAC Name: 2-chloroacetic acid Chloroethanoic acid . Table 1. Comparing the two, in the first one the negative charge is taken up mostly by the two oxygen atoms. Some impor- tant reactions that are used for industrial applications are as follows. As a result, chloro-acetic acid is a common synthetic organic intermediate, either as the acid itself or as an acid derivative (e.g., salt,ester,anhydride,acyl chloride, amide, hydrazide, etc.). Chloroacetic acid Names Preferred IUPAC name. Chloroacetic acid, industrially known as monochloroacetic acid (MCA), is the organochlorine compound with the formula ClCH 2 CO 2 H. This carboxylic acid is a useful building-block in organic synthesis.