Adipic acid

Hexanedioic acid;Adipic acid;Adipinic acid;1,4-Butanedicarboxylic acid;1,6-Hexanedioic acid;Acifloctin;Acinetten;Adilactetten;Asapic;Inipol DS;E 355;NSC 7622;NSC 87836;Rhodiacid AA;Edenol 1208;1186514-28-2;2023788-68-1

124-04-9

C6H10O4

InChIKey=WNLRTRBMVRJNCN-UHFFFAOYSA-N

146.14

146.05790880

204-673-3

76A0JE0FKJ

0369

760121|7622

3077

DTXSID7021605

Monoclinic prisms from ethyl acetate, water, or acetone and petroleum ether|White monoclinic prisms|White crystalline solid|Colorless

2917120001

Carboxylic Acids and Derivatives

0.08 (LogP)|log Kow = 0.08|0.08

1.36 at 68 °F (USCG, 1999)|1.360 g/cu m at 25 °C|Bulk density: 640-800 kg/cu m|1.36 g/cm³|1.36

304 °F (USCG, 1999)|153.2 °C|151,5-154,0 °C|151.5 °C|151-154°C|152 °C|304°F

337.5 °C|337.5 °C at 760 mm Hg: 265 °C at 100 mm Hg: 240.5 °C at 40 mm Hg: 222 °Cat 20 mm Hg: 205.5 °C at 10 mm Hg; 191 °C at 5 mm Hg; 159.5 °C at 1.0 mm Hg|265.00°C.@100.00mmHg|338 °C

376 °F Combustible solid (USCG, 1999)|385 °F, 196 °C (closed cup)|196 °C c.c.|376°F

Slightly soluble in water. Freely soluble in ethanol|In water, 3.00X10+4 mg/L at 30 °C|In water, 0.633/100 parts (wt/wt) ether at 19 °C|In water, 160 g/100 mL boiling water|1.4 g/100 mL water at 10 °C|For more Solubility (Complete) data for ADIPIC ACID (7 total), please visit the HSDB record page.|30.8 mg/mL at 34 °C|Solubility in water, g/100ml at 15 °C: 1.4 (moderate)|slightly soluble in water; soluble in alcohol and acetone

Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non Combustible Solids.|Storage temperature: ambient; venting: open

3.18e-07 mmHg|3.02X10-5 Pa at 25 °C (2.27X10-7 mm Hg)|Vapor pressure, Pa at 18.5 °C: 10

5.04 (Air = 1)|Relative vapor density (air = 1): 5.04

Odorless

TART TASTE|Sour tasting

Henry's Law constant = 1.8X10-12 atm-cu m/mole at 25 °C (est)

K1 = 3.90X10-5 at 25 °C; K2 = 5.29X10-6 at 25 °C|pKa1 = 4.43; pKa2 = 5.41|pKa1 = 4.44 at 25 °C; pKa2 = 5.44 at 25 °C|pKa1 = 4.418; pKa2 = 5.412 at 25 °C

129.61 Ų [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|132.4 Ų [M-2H+Na]-

PRACTICALLY NON-HYGROSCOPIC|Conversion factors at 25 °C: 1 ppm = 5.96 mg/cu m; 1 mg/cu m = 0.168 ppm (calc)|Heat of fusion 57 cal/g= 238.49 J/g= 34.853 J/mol|Specific heat of the liquid = 2.253 kJ/kg K; specific heat of the vapor (at 300 °C) = 1.680 kJ/kg K; heat of fusion = 115 kJ/kg|For more Other Experimental Properties (Complete) data for ADIPIC ACID (6 total), please visit the HSDB record page.

Dust may form explosive mixture with air (USCG, 1999). Insoluble in water.

Acids, Carboxylic

ADIPIC ACID is a carboxylic acid. Carboxylic acids 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 acid 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. Behavior in Fire: Melts and may decompose to give volatile acidic vapors of valeric acid and other substances.

788° F; 450° F (USCG, 1999)|788 °F, 420 °C|422 °C

-2800 kJ/mol

In air: (dust) 10-15 mg/l

Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

Corrosion rate for ASTM grade 2 Titanium: 0.0 mm/yr at 232 °C for 67% (wt) concn.|Aqueous solutions of adipic acid are corrosive.

549 kJ/kg