3-Isobenzofurandione,hexahydro-1
Hexahydrophthalic anhydride
CAS: 85-42-7
Molecular Formula: C8H10O3
3-Isobenzofurandione,hexahydro-1 - Names and Identifiers
| Name | Hexahydrophthalic anhydride |
| Synonyms | NT 907 Araldite HT 907 Lekutherm Hardener H CALCIUM 2-NAPTHYLPHOSPHATE Hexahydrophthalic anhydride hexahydro-3-isobenzofurandione 3-Isobenzofurandione,hexahydro-1 1,3-Isobenzofurandione, hexahydro- cyclohexanedicarboxylic anhydridel 1,2-Cyclohexanedicarboxylic anhydride 1,2-Cyclohexanedicarboxylic Acid anhydride 1,2-cyclohexane-dicarboxylic anhydride, mixture of cis and trans |
| CAS | 85-42-7 |
| EINECS | 201-604-9 |
| InChI | InChI=1/C16H22O7/c17-13(18)9-5-1-3-7-11(9)15(21)23-16(22)12-8-4-2-6-10(12)14(19)20/h9-12H,1-8H2,(H,17,18)(H,19,20) |
3-Isobenzofurandione,hexahydro-1 - Physico-chemical Properties
| Molecular Formula | C8H10O3 |
| Molar Mass | 154.16 |
| Density | 1.18 |
| Melting Point | 32-34°C(lit.) |
| Boling Point | 158°C17mm Hg(lit.) |
| Flash Point | >230°F |
| Water Solubility | 4.2g/L at 20℃ |
| Solubility | Chloroform, Methanol (Slightly) |
| Vapor Presure | 0.31Pa at 25℃ |
| Appearance | Solid |
| Color | White to Off-White Low-Melting |
| Exposure Limit | ACGIH: Ceiling 0.005 mg/m3 |
| BRN | 83213 |
| pKa | 4.14[at 20 ℃] |
| Storage Condition | Store below +30°C. |
| Stability | Moisture Sensitive |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.4620 (estimate) |
| Physical and Chemical Properties | A colorless, clear, viscous liquid solidified to a glassy solid at 35-36 °c. Boiling point of 158 deg C (2.27kPa), the relative density of 1.18(40 deg C), flash point of 143 deg C. With benzene, toluene, acetone, carbon tetrachloride, chloroform, ethanol and ethyl acetate miscible, slightly soluble in petroleum ether. |
3-Isobenzofurandione,hexahydro-1 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R41 - Risk of serious damage to eyes R42/43 - May cause sensitization by inhalation and skin contact. |
| Safety Description | S23 - Do not breathe vapour. S24 - Avoid contact with skin. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | 3335 |
| WGK Germany | 1 |
| RTECS | NP6895168 |
| TSCA | Yes |
| HS Code | 29172090 |
3-Isobenzofurandione,hexahydro-1 - Reference Information
| LogP | -4.14 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| physical and chemical properties and uses | hexahydrophthalic anhydride, also known as hexahydrophthalic anhydride, is a colorless transparent viscous liquid at room temperature. Molecular weight 154.17. Solidify to a white glassy solid at 35-36 °c. The relative density of 1.18~1.19. Boiling point 158 C (2.27kPa). Soluble in acetone, ethanol, ethyl acetate, chloroform, carbon tetrachloride, benzene, toluene, slightly soluble in petroleum ether. Inhalation is toxic and strongly irritating to the eyes and skin. hexahydrophthalic anhydride can be used as a curing agent for epoxy resin. Low melting point, can be mixed with the resin at low temperature, the viscosity of the mixture is low, the service life is long (6 days), Fever of the curing is small. Mainly used for casting products. General dosage of 75~85 parts. Curing conditions: 100~200 ℃/3~1H. The cured product has excellent electrical properties and drug resistance, and the heat distortion temperature is 110~130. Hexahydrophthalic anhydride is also useful as a eutectic curing agent for chloro-and tetrahydrophthalic anhydride. |
| Use | used as plasticizer, insect repellent, rust intermediate, resin modifier and curing agent of epoxy resin. used in coating, epoxy resin curing agent, polyester resin, adhesive, plasticizer, etc. |
| production method | is obtained by hydrogenation of tetrachlorophthalic anhydride. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:21:28
