1852-04-6
Undecanedioic acid
CAS: 1852-04-6
Molecular Formula: C11H20O4
1852-04-6 - Names and Identifiers
| Name | Undecanedioic acid |
| Synonyms | undecanedioate UNDECANEDIOIC ACID Undecanedioic acid RARECHEM AL BO 0436 Undecanedioic acid UDDA Undecane-1,11-dioic acid 1,9-Nonanedicarboxylic acid Nonane-1,9-dicarboxylic acid Undecanedioic acid,1,9-Nonanedicarboxylic acid Nonamethylenedicarboxylic AcidUndecanedioic Acid 2-{[(3α,5β,7β,8ξ,9ξ,12α,14ξ)-3,7,12-trihydroxy-24-oxocholan-24-yl]amino}ethanesulfonic acid 3,3',3'',3'''-[3,8,12,17-tetrakis(carboxymethyl)porphyrin-2,7,13,18-tetrayl]tetrapropanoic acid |
| CAS | 1852-04-6 |
| EINECS | 217-440-6 |
| InChI | InChI=1/C40H38N4O16/c45-33(46)5-1-17-21(9-37(53)54)29-14-27-19(3-7-35(49)50)23(11-39(57)58)31(43-27)16-32-24(12-40(59)60)20(4-8-36(51)52)28(44-32)15-30-22(10-38(55)56)18(2-6-34(47)48)26(42-30)13-25(17)41-29/h13-16,41,44H,1-12H2,(H,45,46)(H,47,48)(H,49,50)(H,51,52)(H,53,54)(H,55,56)(H,57,58)(H,59,60)/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16- |
| InChIKey | LWBHHRRTOZQPDM-UHFFFAOYSA-N |
1852-04-6 - Physico-chemical Properties
| Molecular Formula | C11H20O4 |
| Molar Mass | 216.27 |
| Density | 1.1629 (rough estimate) |
| Melting Point | 108-110 °C (lit.) |
| Boling Point | 389.33°C (rough estimate) |
| Flash Point | 882.6°C |
| Water Solubility | 5.10g/L(21 ºC) |
| Solubility | methanol: 10mg/mL, clear |
| Vapor Presure | 10Pa at 20℃ |
| Appearance | White powder |
| Color | White to Off-White |
| BRN | 1780537 |
| pKa | 4.48±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4421 (estimate) |
| MDL | MFCD00004444 |
1852-04-6 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29171900 |
1852-04-6 - Reference Information
| LogP | 2.8 at 25℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | undecanedioic acid is mainly used in polyamide high-grade engineering plastics. it is the main raw material for nylon 1011, 611 and 1111, and can also be used as an important raw material for high-grade hot melt adhesive, high-grade lubricant and synthetic musk. undecanedioic acid is an important industrial product developed earlier in long-chain dibasic acid. Mainly used to synthesize polymer materials, spices, medicines, etc. For example, as the main raw material for the synthesis of muscone, the raw material for the synthesis of long carbon chain dibasic acid diesters with special performance requirements, the synthesis of high-performance polyamide hot melt adhesive polycondensation monomers, and the synthesis of long carbon chain nylon 1111 as polycondensation monomers and diamine have been applied in many fields. |
| overview | undecanedioic acid belongs to a long-chain dibasic acid and is a fine chemical product with important and wide industrial applications. Long-chain dibasic acid refers to aliphatic dicarboxylic acids with more than 10 (including 10) carbon atoms in the carbon chain. They and their derivatives are widely used in the production of special lubricants for aerospace and military use, and special materials for petroleum pipelines., Vehicle materials, high-grade plastic plasticizers, tire wear-resistant agents, high-grade paint coatings, medicine, pesticides and other fields, and finally form a series of products with high added value. Its market demand shows a rapid growth trend. |
| application | undecanedioic acid is the main raw material for synthesizing nylon 1011, 611, 1111, etc. It can prepare polyamide engineering plastics, high-grade hot melt adhesives, high-grade lubricants, high-grade coatings, optical fiber sleeves, surface-to-air missile ropes and oil pipelines, etc., replace non-ferrous metals, and are widely used in machinery, automobiles and other industries. |
| purification | in a 3000L dissolution and decolorization reactor, put 2000L of 98% acetic acid solution, 780kg of crude undecanedioic acid and 6kg of activated carbon into a 3000L dissolution and decolorization reactor, stir well, raise the temperature to 95 ℃, and keep the temperature for 20 minutes, the undecane diacid solution filtered by the four-stage filtration system of the underflow type plate and frame filter press, the bag type filter, the metal titanium rod filter and the laminated filter enters the crystallization kettle, and the temperature in the crystallization kettle is rapidly and uniformly cooled to 76 ℃, the cooling water is turned off, the temperature is naturally cooled to 72 ℃, the undecane diacid with purity greater than 99.8% is added as crystal seed, the stirring speed is controlled at 40r /min, the temperature in the crystallization kettle bounced back to 74 ℃, and then gradually decreased, when the temperature naturally drops to 68 ℃, slowly open the cooling water, control the cooling speed from slow to fast, and finally cool down to 25 ℃. The whole cooling process controls the cooling time for 6-8 hours. The crystallization liquid is centrifuged and used when the filtrate is prepared for mother liquor recovery. The filter cake is left in the centrifuge and washed with 300L acetic acid solution of 98% purity. After the leaching is completed, centrifugation is performed for 15 minutes, and the filtrate is prepared for production cycle as solvent in the feeding step. Then use 2000L of non-ionized water to rinse the filter cake in the centrifuge, centrifuge for 15 minutes after rinsing, and use the filtrate for mother liquor recovery. The filter cake with 85% solid content of the material is obtained. The filter cake is mixed with 1200L of non-ionized water, pumped into a room temperature water washing tank, 800L of non-ionized water is added, stirred for half an hour, centrifuged and filtered, and the filtrate is prepared for production cycle leaching centrifuge. The filter cake is dried by a double cone vacuum dryer to obtain 660kg of refined undecanedioic acid. Neutralization titration was used to measure total acid content 99.89%, gas chromatography was used to measure monoacid content 99.45%, total nitrogen content 6ppm, iron ion content 0.6ppm, ash content 13ppm, and moisture content 0.12%. The comprehensive purification yield is 98.59%. |
| biological activity | Undecanedioic acid (1,9-Nonanedicarboxylic acid, Undecanedionate) is a long-chain dicarboxylic acid, which is used in corrosion inhibitor, hot melt adhesive and high-performance polyamide/nylon. |
Last Update：2024-04-10 22:29:15
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