2,2-Dichloropropionic acid RC06953

Dalapon

Propanoic acid,2,2-dichloro-;Propionic acid,2,2-dichloro-;2,2-Dichloropropanoic acid;Dalapon;α,α-Dichloropropionic acid;2,2-Dichloropropionic acid;DPA;2,2-DPA;Alatex;Basinex P;S 95;S 95 (herbicide);S 1315;α,α-Dichloropropanoic acid;Proprop;Tripon;Dalascam;NSC 56352;Dalapon 740

75-99-0

C3H4Cl2O2

InChIKey=NDUPDOJHUQKPAG-UHFFFAOYSA-N

142.97

142.97

1750149

200-923-0

VO6PY8ZMRW

1509

56352

1760

DTXSID2021575

Liquid|Colorless liquid [Note: A white to tan powder below 46 degrees F. The sodium salt, a white powder, is often used].

29159000

Herbicides

37.30000

1.26480

Liquid

1.4014 g/cm³ @ Temp: 20 °C

20 °C

190 °C

>110°C

1.4544

H2O: 50.2 g/100 mL

0-6°C

5.07 mmHg at 160°F

4.9

Oral-Rat LD50: 970 mg/kg

Combustion produces toxic chloride gas

Acrid odor.

(Aq): 1.32 (0.099 N, 23 °C)

Henry's Law constant= 6.4X10-8 atm-cu m/mole at 25 °C /Estimated/

pKa average = 1.74 at 0.001 to 0.1 molarity of the acid and 1.84 at 0.05 ionic strength

Salty taste /Sodium salt/|Crystals; decomp at 174-176 °C; aq soln hydrolyze above 70 °C; corrosive to iron|HYGROSCOPIC /SODIUM SALT/|Hydroxyl radical reaction rate constant= 5.5X10-13 cu cm/molec-sec at 25 °C /Estimated/

Soluble in water. Reacts slowly in water to form hydrochloric and pyruvic acids.

Acids, Carboxylic

These organic compounds donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acids dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in it to corrode or dissolve iron, steel, and aluminum parts and containers. Carboxylic acids, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. The reaction is slower for dry, solid carboxylic acids. Insoluble carboxylic acids react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides. Carboxylic acids, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. Like other organic compounds, carboxylic acids can be oxidized by strong oxidizing agents and reduced by strong reducing agents. These reactions generate heat. A wide variety of products is possible. Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. 2,2-DICHLOROPROPIONIC ACID is incompatible with the following: Very corrosive to aluminum and copper alloys.

Noncombustible Liquid

Corrosive to iron|Formulations are ... corrosive to equipment.