Name | 1,10-Decanedicarboxylic acid |
Synonyms | DDDA dodecanedioate 1.10-Decanedic Dodecanedioic aci Twelve alkyl acid Dodecanedioic acid RARECHEM AL BO 0308 1,10-dicarboxydecane Dodecandioic acid (DDA) 1,10-decandicarboxylicacid 1,10-Decanedicarboxylic acid DODECANEDIOIC ACID FOR SYNTHESIS |
CAS | 693-23-2 |
EINECS | 211-746-3 |
InChI | InChI=1/C12H22O4/c13-11(14)9-7-5-3-1-2-4-6-8-10-12(15)16/h1-10H2,(H,13,14)(H,15,16)/p-2 |
InChIKey | CXMXRPHRNRROMY-UHFFFAOYSA-N |
Molecular Formula | C12H22O4 |
Molar Mass | 230.3 |
Density | 1,15 g/cm3 |
Melting Point | 127-129 °C (lit.) |
Boling Point | 245 °C/10 mmHg (lit.) |
Flash Point | 220 °C |
Water Solubility | < 0.1 g/L (20 ºC) |
Solubility | ethanol: 0.1g/mL, clear |
Vapor Presure | 21 mm Hg ( 222 °C) |
Appearance | White crystalline powder |
Color | White |
BRN | 1782580 |
pKa | 4.48±0.10(Predicted) |
PH | 5 (H2O, 20℃)(aqueous suspension) |
Storage Condition | Sealed in dry,Room Temperature |
Stability | Stable. Incompatible with strong oxidizing agents, reducing agents. Combustible. |
Sensitive | Air Sensitive |
Refractive Index | 1.4437 (estimate) |
MDL | MFCD00002735 |
Physical and Chemical Properties | White powder or flaky crystals. Melting point 128.7-129 ℃, boiling point 254 ℃(2.0kPa),245 ℃(1.33kPa), molar heat of combustion 6.740MJ/mol. Small solubility in water, good thermal stability. |
Use | Used for synthetic nylon 612, model resin, modified saturated polyester, powder coating, plasticizer, lubricating oil, metal precipitant, etc |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36 - Irritating to the eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | - |
RTECS | JR2370000 |
TSCA | Yes |
HS Code | 29171990 |
LogP | 3.2 at 25℃ |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | dodecanoic Acid, also known as lauric Acid. It is an earlier developed industrial product in long-chain dicarboxylic acid. Mainly used in the synthesis of polymer materials, spices, drugs, etc. Among them, as a polycondensation monomer and diamine condensation reaction to synthesize long carbon chain nylon (also known as polyamide resin) engineering plastics, is one of the most important applications. |
refining method | add 1000 L90wt to 400kg of ordinary dodecanoic acid and 3kg of coconut shell activated carbon. In% edible alcohol, the slurry is adjusted in a 2m3 glass-lined decolorizing kettle, heated to 65 ℃, filtered by 30m2 box-type Dark Flow Plate and Frame, and the filtrate is filtered through a precision filter to a crystallization tank, cooled to 25 ℃, centrifuge, centrifuge the material into the brush clean glass lining low-temperature wash tank, add 200 L95wt.%, 15 ℃ alcohol, stirring evenly, two centrifugation, centrifugal material into the double cone vacuum dryer drying, temperature control at 45 ℃ ± 1 ℃, vacuum degree -0.085 ~-0.10MPa, dry to a moisture content of less than 0.1wt. After completion of drying, 328kg of purified acid was obtained. Determination of mono-acid content of product by gas chromatography. 99.17wt.%, neutralization titration determination of total acid content 99.5wt.%, the ester content was not detected, the mother liquor and the drying and recovery of alcohol during the distillation of the distillation kettle feed liquid with 30% liquid alkali control at pH 12, the distillation of alcohol 1180L, alcohol content of 92wt.%. Mixed acid was produced by distillation of high boiling mixture with alcohol, and 63.5 of mixed acid was obtained, with total acid content of 98.5wt.%, dodecanoic acid content (GC) of 90.26wt.% and water content of 0.35wt.%. |
Use | the product is condensed with hexamethylenediamine to produce engineering plastic nylon 6-12, diesters of alcohols such as butanol can be used as plasticizers for polyvinyl chloride, nitrocellulose and cellulose acetate, and diesters synthesized with octanol are also used as advanced lubricating oils for jet engines and gas turbines, or low temperature grease base oil; Twelve double acid can also be used as a modifier of saturated polyester, metal precipitation agent and perfume, special polyurethane raw materials. used in the synthesis of polyamide, long carbon chain nylon, high-grade lubricating oil, etc., is the main raw material of nylon 1212, nylon 612 and nylon 1012 used in the synthesis of nylon 612, model resin, modified saturated polyester, powder coating, plasticizer, lubricating oil, metal precipitant, etc. |
production method | It is industrially possible to trimerize butadiene to give cyclododecatriene, which is then hydrogenated to cyclododecane, then, dodecanone is oxidized by nitric acid to give dodecanedioic acid. It is also possible to react with hydrogen peroxide in methanol from cyclohexane to form alkoxy cyclohexyl peroxide, and then ring-opening and dimerization to form dodecanedioic acid methyl ester. After saponification, twelve double acid can be obtained. In laboratory preparation, dodecanol was used as raw material to get dodecanedioic acid by nitric acid oxidation. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
This product is white powder or flake crystal. The melting point is 128.7-129 °c and the boiling point is 254 °c (2.OkPa). The molar heat of combustion was 6.740 MJ/mol. Small solubility in water, good thermal stability.
cyclohexane is used as raw material to react with hydrogen peroxide in methanol to make cyclohexyl peroxide, and then catalytic ring opening and dimerization are carried out to obtain dodecanedioic acid methyl ester. After refining and saponification, dodecanedioic acid is obtained.
This product can be used as raw materials for synthetic nylon 6-12 and molding resin, saturated polyester modifier, powder coating, plasticizer, synthetic lubricant, metal precipitant, synthetic macrocyclic musk raw materials.