methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers
methylhexahydrophthalic anhydride
CAS: 25550-51-0
Molecular Formula: C9H12O3
methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers - Names and Identifiers
| Name | methylhexahydrophthalic anhydride |
| Synonyms | MHHPA MeHHPA 1. Methyl Hexahyd Methylhexahydrophthalic anhydrid methylhexahydrophthalic anhydride Hexahydromethylphthalsureanhydrid methyl hexahydrophthalic anhydride hexahydromethyl-1,3-Isobenzofurandione 3,4-Methyl hexahydrophthalic anhydride 1,3-Isobenzofurandione, hexahydromethyl- 3a-methylhexahydro-2-benzofuran-1,3-dione methyl hexahydrophthalic anhydride (MHHPA) 1. Methyl Hexahydrophthalic Anhydride (MHHPA) HEXAHYDROMETHYLPHTHALIC ANHDRIDE, MIXTURE OF ISOMERS 2,2'-(oxydicarbonyl)bis(2-methylcyclohexanecarboxylic acid) methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers |
| CAS | 25550-51-0 |
| EINECS | 247-094-1 |
| InChI | InChI=1/C18H26O7/c1-17(9-5-3-7-11(17)13(19)20)15(23)25-16(24)18(2)10-6-4-8-12(18)14(21)22/h11-12H,3-10H2,1-2H3,(H,19,20)(H,21,22) |
methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers - Physico-chemical Properties
| Molecular Formula | C9H12O3 |
| Molar Mass | 168.19 |
| Density | 1.162 |
| Boling Point | 299℃[at 101 325 Pa] |
| Flash Point | 195.1°C |
| Vapor Presure | 0.274Pa at 25℃ |
| Appearance | Transparent liquid |
| pKa | 4.12[at 20 ℃] |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.479Nd(25°C) |
| Physical and Chemical Properties | Colorless transparent liquid. |
| Use | Used as curing agent for epoxy resin |
methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 29329990 |
methyl-1,2-cyclohexanedicarboxylic anhydride mixture of isomers - Reference Information
| LogP | 2.59 at 25℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | is an excellent organic solvent with a wide range of uses. it is mainly used as a solvent for oil and fat, an extractant, an electrolytic solvent for lithium batteries, a chlorine-based solvent stabilizer, a pharmaceutical intermediate and a raw material for copolyformaldehyde. it can also be used as a raw material for silk finishing agent and sealing glue as a curing agent for epoxy resin |
| production method | (1) maleic anhydride and 1,3-pentadiene are added to a stirring reactor, and heated under stirring to carry out diene addition reaction to generate methyl tetrahydrophthalic anhydride: (2) continuous hydrogenation of methyl tetrahydrophthalic anhydride to produce methyl hexahydrophthalic anhydride by continuous hydrogenation of methyl tetrahydrophthalic anhydride adopts a continuous trickle bed reaction process, and the optimized reaction process parameters are: inlet temperature 185 ℃, pressure 7.0MPa, hydrogen-oil ratio 3000: 1. The total conversion rate of the product is about 98.2%, and the total yield of the product is 85.8%. The catalytic hydrogenation reaction formula of methyltetrahydrophthalic anhydride is as follows: |
Last Update：2024-04-09 15:16:49
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