dicyclohexyl benzene-1,2-dicarboxylate
dicyclohexyl phthalate
CAS: 84-61-7
Molecular Formula: C20H26O4
dicyclohexyl benzene-1,2-dicarboxylate - Names and Identifiers
| Name | dicyclohexyl phthalate |
| Synonyms | DCHP kp201 KP 201 unimoll66 howflexcp Unimoll 66 Morflex 150 Unimoll 66 M dicyclohexyl phthalate phtalatededicyclohexyle Dicyclohexyl phthalate (DCHP) Phthalic acid dicyclohexyl ester dicyclohexyl benzene-1,2-dicarboxylate |
| CAS | 84-61-7 |
| EINECS | 201-545-9 |
| InChI | InChI=1/C20H26O4/c21-19(23-15-9-3-1-4-10-15)17-13-7-8-14-18(17)20(22)24-16-11-5-2-6-12-16/h7-8,13-16H,1-6,9-12H2 |
| InChIKey | VOWAEIGWURALJQ-UHFFFAOYSA-N |
dicyclohexyl benzene-1,2-dicarboxylate - Physico-chemical Properties
| Molecular Formula | C20H26O4 |
| Molar Mass | 330.42 |
| Density | 1.2 |
| Melting Point | 63-67°C(lit.) |
| Boling Point | 200-235 °C (4 mmHg) |
| Flash Point | 207 °C |
| Water Solubility | insoluble |
| Solubility | Soluble in most organic solvents, insoluble in water. It is completely dissolved in hot gasoline and mineral oil. Slightly soluble in ethylene glycol and some amines, hardly soluble in water. |
| Vapor Presure | 0.1 mm Hg ( 150 °C) |
| Vapor Density | 11.6 (vs air) |
| Appearance | White crystal |
| Color | White |
| BRN | 1889288 |
| Storage Condition | Store below +30°C. |
| Refractive Index | 1.485 |
| MDL | MFCD00003849 |
| Physical and Chemical Properties | Character: white crystalline powder, with slightly aromatic odor. melting point 65 ℃ boiling point 220~228 ℃ relative density 1.148 refractive index 1.485 flash point 207 ℃ soluble in acetone, methyl ethyl ketone, cyclohexanone, ethyl ether, carbon tetrachloride, toluene and other organic solvents, slightly soluble in ethylene glycol and some amines, difficult to dissolve in water. Good compatibility with many resins. |
| Use | Used as the main plasticizer of polyvinyl chloride, acrylic resin, polystyrene, nitrocellulose and so on |
dicyclohexyl benzene-1,2-dicarboxylate - 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 | 1 |
| RTECS | TI0889000 |
| TSCA | Yes |
| HS Code | 29173400 |
| Toxicity | LD50 oral in rat: 30mL/kg |
dicyclohexyl benzene-1,2-dicarboxylate - Nature
Open Data Verified Data
white crystals. Slightly aromatic odor. Soluble in most organic solvents, insoluble in water. Irritating. Soluble in acetone, methyl ethyl ketone, cyclohexanone, ethyl ether, carbon tetrachloride, toluene and other organic solvents, slightly soluble in ethylene glycol and some amines, difficult to dissolve in water. Good compatibility with many resins.
Last Update：2025-06-10 22:55:16
dicyclohexyl benzene-1,2-dicarboxylate - Preparation Method
Open Data Verified Data
cyclohexanol was added to the reaction kettle, and sulfuric acid was added as a catalyst under stirring, and then phthalic anhydride was added to dissolve, and the temperature was continuously raised, and by-products were continuously removed under reduced pressure to obtain a product.
Last Update：2025-06-10 22:55:16
dicyclohexyl benzene-1,2-dicarboxylate - Introduction
Slightly aromatic scent. Stimulant
Last Update：2022-10-16 17:29:17
dicyclohexyl benzene-1,2-dicarboxylate - Application
Open Data Verified Data
used as a water-repellent aid for paper. It is also used as a main plasticizer for polyvinyl chloride, acrylic resin, polystyrene, nitrocellulose, etc.
Last Update：2025-08-19 16:24:40
dicyclohexyl benzene-1,2-dicarboxylate - Reference Information
| LogP | 4.82 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 | dicyclohexyl phthalate (DCHP) is a special plasticizer with moisture resistance. A large number of studies have proved that its toxicity is very low, at present, the domestic production capacity is relatively low, the vast majority rely on imports, mainly through the esterification of industrial production. |
| Use | used for polyvinyl chloride, acrylic resin, polystyrene, main plasticizer for nitrocellulose and the like This product is a phthalate-based plasticizer. This kind of plasticizer variety, large output, accounting for about 80% of the total output of plasticizer, has a more comprehensive performance, generally used as the main plasticizer. Among the phthalate esters, dioctyl phthalate (DOP) is the most widely used, accounting for about 45% of the total plasticizer in China. Dicyclohexyl phthalate can be used as the main plasticizer of polyvinyl chloride, acrylic resin, polystyrene, nitrocellulose and other resins, with moisture-proof effect, and other plasticizers, can make the product shrink dense, prevent water vapor transmission and plasticizer volatilization. The surface of the plastic product containing the product is smooth and feel good. The amount of the product is generally accounted for 10-20% of the total amount of plasticizer, the amount should not be too large, otherwise the hardness of the product increases. The product can improve the fluidity of the resin during thermal processing. In the synthetic resin adhesive, the product can improve the adhesion, oil resistance and durability. In addition, the product is also used for nitrocellulose and some natural resins, can be made moisture coating. The toxicity of the product is low, with the product containing 25% of the olive oil agent on rats directly after oral exposure, 24H no death cases, in 7d LD50 30ml/kg. The product was mixed into the feed at a dose of 10 mg/kg, and the rats were fed for four generations for 8 months. The growth, reproduction and lactation of the experimental animals showed no abnormality and no carcinogenicity. used as raw material, toughening agent and plasticizer of high molecular polymer |
| production method | is obtained by esterification of phthalic anhydride and cyclohexanol. Raw material consumption (kg/t) phthalic anhydride 500 cyclohexanol 670 cyclohexanol was added to the reaction kettle, Catalyst sulfuric acid (0.5%) was added with stirring, and phthalic anhydride was added to dissolve. The temperature rise was continued and the by-products were continuously removed under reduced pressure. Reflux under reduced pressure for 4 h. Neutralization, decompression distilled water and cyclohexanol product. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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