5221-16-9

Basic information

• Product Name: MCPA-POTASSIUM SALT
• Synonyms: ((4-chloro-o-tolyl)oxy)aceticacidpotassiumsalt;((4-chloro-o-tolyl)oxy)-aceticacipotassiumsalt;(4-chloro-2-methylphenoxy)aceticacidpotassiumsalt;(4-chloro-2-methylphenoxy)-aceticacipotassiumsalt;2-methyl-4-chlorophenoxyaceticacidpotassiumsalt;agroxone4;fernimine4;kmcpa
• CAS NO: 5221-16-9
• Molecular Formula: C₉H₈ClO₃*K
• Molecular Weight: 238.71
• EINECS: 226-015-4
• Mol File: 5221-16-9.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 327°Cat760mmHg
• Flash Point: 151.6°C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 8.42E-05mmHg at 25°C
• Storage Temp.: 0-6°C
• CAS DataBase Reference: MCPA-POTASSIUM SALT(CAS DataBase Reference)
• NIST Chemistry Reference: MCPA-POTASSIUM SALT(5221-16-9)
• EPA Substance Registry System: MCPA-POTASSIUM SALT(5221-16-9)

Safety Data

• Hazardous Substances Data: 5221-16-9(Hazardous Substances Data)

Usage

InChI:InChI=1/C9H9ClO3.K/c1-6-4-7(10)2-3-8(6)13-5-9(11)12;/h2-4H,5H2,1H3,(H,11,12);/q;+1/p-1

Upstream product

• 94-74-6 MCPA 
• 95-48-7 ortho-cresol 
• 1713-11-7 4-chloro-2-methylphenoxyacetic acid isobutyl ester 

Downstream Products

• 1082249-27-1 1-hexyl-1-methyl-piperidinium (4-chloro-2-methylphenoxy)acetate 
• 1197155-41-1 C₁₇H₁₇NO₃ 
• 1197155-43-3 C₁₇H₁₆ClNO₃ 

Relevant articles and documents

Herbicidal Ionic Liquids Containing the Acetylcholine Cation

This study presents a new group of herbicidal ionic liquids (HILs) based on a cation occurs commonly in nature?acetylcholine. The HILs were obtained with a high yield through ion exchange between acetylcholine chloride and potassium or sodium salts of selected acids with herbicidal activity. The results of the herbicidal activity measurement against common oilseed rape (Brassica napus L.) exceeded those of the commercial products. Spray solutions of the synthesized HILs revealed high surface activity and wetting properties which further manifested as higher herbicidal activity. The reduction of surface tension and low contact angles together with the specific action of acetylcholine allowed for better penetration of synthesized HILs into plant tissues. In addition, OECD 301F tests confirmed high mineralization of the HILs. The simple transformation of commercial herbicides into acetylcholine HILs proved to be a very effective method of increasing their activity, and constitutes an interesting solution to the problem of weed infestation with the use of a substance commonly found in nature.

PROCESS FOR PREPARATION OF HERBICIDAL CARBOXYLIC ACID SALTS

A process for preparing a herbicidally active carboxylic acid salt is disclosed, the process comprising the steps of: i) combining a carboxylic acid with a high-boiling, water-immiscible organic solvent to obtain a solution or slurry; ii) treating the solution or slurry produced in step (i) with a base to form a carboxylic acid salt; iii) removing solvent from the mixture produced in step (ii) to obtain a carboxylic acid salt cake; and v) drying the cake obtained in step (iii). The process is particularly suitable for preparing a salt of dicamba. A process for preparing dicamba-sodium comprises: (1) dissolving a carboxylic acid consisting essentially of dicamba in a high-boiling water-immiscible inert organic solvent to get a solution or slurry; (2) treating the dicamba solution or slurry in Step 1 with a base selected from sodium hydroxide, sodium bicarbonate and mixtures thereof, at a molar ratio of 1:0.97±0.6% to form dicamba-sodium; (3) centrifuging the reaction mixture in Step 2 to obtain dicamba-sodium salt cake; and (4) drying the dicamba-sodium cake obtained in Step 3 to get a dry dicamba- sodium consistently having a pH value between about 7 and 10 when dissolved in water.

Process for preparing solid, free-flowing water-soluble salts of aryloxy-C1 -C4 -alkanecarboxylic acids

Process for preparing solid, free-flowing water-soluble salts of aryloxy-C1 -C4 -alkanecarboxylic acids by reacting the aryloxy-C1 -C4 -alkanecarboxylic acids with a salt-forming base, the salt formation taking place in the melt in the presence or absence of an entraining agent suitable for the azeotropic removal of water or in solution in the presence of an entraining agent suitable for the azeotropic removal of water and, if appropriate, removing the entraining agent from the reaction mixture during the reaction or subsequently and then isolating the solid salts in a customary manner.