| [Flash Point] 140 | |
| [Fire Fighting] Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: Do NOT get water inside containers. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. | |
| [Ingestion] Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. | |
| [Inhalation] Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. | |
| [Skin] Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. | |
| [Eyes] Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. | |
| [Storage] Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture. | |
| [Handling] Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Do not allow contact with water. Wash clothing before reuse. Keep from contact with moist air and steam. | |
| [Ingestion] Causes gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. | |
| [Inhalation] Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. | |
| [Skin] Causes skin irritation. The toxicological properties of this material have not been fully investigated. | |
| [Eyes] Causes eye irritation. | |
| [Personal Protection] Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate clothing to prevent skin exposure. | |
| [Respirators] Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. | |
| [Poison Class] 4 | |
| [Appearance] Colorless to light yellow liquid. | |
| [Solubility in water] Slightly soluble | |
| [Boiling Point] 300 | |
| [Vapor Pressure] 0.0012 (25 C) | |
| [Density] 1.16 g/cm3 | |
| [Partition Coefficient] .73 | |
| [Heat Of Vaporization] 54.0 kJ/mol | |
| [Product Name] MHHPA | |
| [Synonyms] 1,3-Isobenzofurandione, hexahydro-5-methyl- 5-Methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Hexahydro-4-methylphthalic anhydride | |
| [CAS] "CASEN_19438-60-9.htm">19438-60-9 | |
| [Formula] C9H12O3 | |
| [Molecular Weight] 168.19 | |
| [EINECS] 243-072-0 | |
| [Beilstein/Gmelin] 83443 | |
| [Beilstein Reference] 5-17-11-00083 | |
| [EC Index Number] 607-241-00-6 | |
| [EC Class] Irritant; Sensitising | |
| [Small spills/leaks] Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation. Do not get water inside containers. | |
| [Incompatibilities] Moisture, strong acids, strong bases, strong oxidizing agents. | |
| [Stability] Stable at room temperature in closed containers under normal storage and handling conditions. | |
| [Decomposition] Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
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