CHDA
1,4-Cyclohexanedicarboxylic acid
CAS: 1076-97-7
Molecular Formula: C8H12O4
CHDA - Names and Identifiers
| Name | 1,4-Cyclohexanedicarboxylic acid |
| Synonyms | CHDA 1,4-CHDA 1, 4 - ring of adipic acid 1,4-Cyclohexanedicarboxylic acid Two1,4-cyclohexanecarboxylic acid cyclohexane-1,4-dicarboxylic acid 1,1'-cyclohexane-1,4-diyldiethanone 1,4-trans-cyclohexyldicarboxylic acid cis+trans),1,4-Cyclohexanedicarboxylicacid(cis-andtra 1,4-Cyclohexanedicarboxylic acid (cis- and trans- mixture) |
| CAS | 1076-97-7 |
| EINECS | 214-068-6 |
| InChI | InChI=1/C10H16O2/c1-7(11)9-3-5-10(6-4-9)8(2)12/h9-10H,3-6H2,1-2H3 |
CHDA - Physico-chemical Properties
| Molecular Formula | C8H12O4 |
| Molar Mass | 172.18 |
| Density | 1.2104 (rough estimate) |
| Melting Point | 164-167°C(lit.) |
| Boling Point | 262.49°C (rough estimate) |
| Flash Point | 235°C |
| Water Solubility | SOLUBLE |
| Vapor Presure | 0.0112mmHg at 25°C |
| Appearance | White crystal |
| Color | White to off-white |
| BRN | 1870377 |
| pKa | 4.38±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4450 (estimate) |
| MDL | MFCD00001465 |
| Physical and Chemical Properties | Cis-trans mixture is white crystal, soluble in ethanol, acetone and chloroform and other organic solvents. The solubility is about 10%, and the melting point is 164~167. Trans -1,4-ring has dicarboxylic acid is white phosphorus columnar crystals, solubility in water is smaller than the CIS, melting point greater than 300 ℃. Cis -1,4-ring has dicarboxylic acid is white leaf Crystal, has considerable solubility in water, melting point of 170~171 ℃. |
| Use | In medicine for the synthesis of peptic ulcer drugs, polyester resin as a modified monomer |
CHDA - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed 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 | 3 |
| RTECS | GU9060000 |
| TSCA | Yes |
| HS Code | 29172090 |
CHDA - Introduction
A dibasic acid with a symmetrically substituted primary carboxyl group at the 1,4 position on the cyclic structure. Soluble in water.
Last Update：2022-10-16 17:11:54
CHDA - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | Resin for powder coatings; Resin for coil coatings; It is used to synthesize peptic ulcer drugs in medicine. In polyester resin, it is used as a modified monomer; High-solid polyester-melamine drying enamel; Unsaturated polyester resin for gel coating. Application in waterborne polyurethane resin: 1,4-CHDA and AD (adipic acid) have better processability, lower solution viscosity, PIA (phthalic acid) followed by dispersion stability: 1,4-CHDA>PIA>AD 1,4-CHDA can also make the resin achieve a good balance between hardness and flexibility 1,4-CHDA can be used to improve the dispersibility of acrylic resin, and can also have good storage stability. In addition, the coordination line between 1,4-CHDA and acrylic resin is better than that of isophthalic acid (DOP). 1,4-CHDA reactivity is higher than PIA It is used in the synthesis of peptic ulcer drugs in medicine, and in the aspect of polyester resin, it is used as a modified monomer to improve the yellowing of polyester resin, and its flexibility (softness) is improved without changing the hardness. |
Last Update：2024-04-10 22:29:15
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