1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE
Chlorendic anhydride
CAS: 115-27-5
Molecular Formula: C9H2Cl6O3
1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE - Names and Identifiers
| Name | Chlorendic anhydride |
| Synonyms | Chlorendic anhydride PERCHLOROBICYCLO[2.2.1]HEPT-5-ENE-2,3-DICARBOXYLIC ANHYDRIDE PERCHLOROBICYCLO (2.2.1)-5-HEPTENE-2,3-DICARBOXYLIC ANHYDRIDE 1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE 1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboxylic anhydride 1,4,5,6,7,7-hexachloro-endo-5-norbornene-2,3-dicarboxylicanhydride 4,7-Methanoisobenzofuran-1,3-dione,4,5,6,7,8,8-hexachloro-3a,4,7,7a-t 1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]-5-heptene-2,3-dicarboxylicacidanhydride 1,4,5,6,7,7-hexachloro-endo-bicyclo(2.2.1)hept-5-ene-2,3-dicarboxylicanhydride 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione 4,7-Methanoisobenzofuran-1,3-dione, 4,5,6,7,8,8-hexachloro-3a,4,7,7a-tetrahydro- |
| CAS | 115-27-5 |
| EINECS | 204-077-3 |
| InChI | InChI=1/C18H6Cl12O7/c19-5-7(21)15(25)3(1(9(31)32)13(5,23)17(15,27)28)11(35)37-12(36)4-2(10(33)34)14(24)6(20)8(22)16(4,26)18(14,29)30/h1-4H,(H,31,32)(H,33,34) |
| InChIKey | FLBJFXNAEMSXGL-UHFFFAOYSA-N |
1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE - Physico-chemical Properties
| Molecular Formula | C9H2Cl6O3 |
| Molar Mass | 370.83 |
| Density | 1,73 g/cm3 |
| Melting Point | 235-239°C(lit.) |
| Boling Point | 486.58°C (rough estimate) |
| Water Solubility | insoluble |
| Vapor Presure | 0-0.003Pa at 20-24.85℃ |
| Vapor Density | 13 (vs air) |
| Appearance | powder to crystal |
| Color | White to Almost white |
| Merck | 14,2086 |
| BRN | 92693 |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.5550 (estimate) |
| Physical and Chemical Properties | White crystals. Melting point 231-235 °c. Solubility (g/100g): benzene is 40.4, hexane 4.5, acetone 127.0, carbon tetrachloride 6.7, slightly soluble in water and hydrolyzed into chloro-bridge acid. |
| Use | Reactive flame retardants for epoxy resins and Polyurethanes |
1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R45 - May cause cancer R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R48/20/21/22 - R40 - Limited evidence of a carcinogenic effect |
| Safety Description | S25 - Avoid contact with eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 1759 |
| WGK Germany | 1 |
| RTECS | RB9080000 |
| TSCA | Yes |
| HS Code | 29172090 |
1,4,5,6,7,7-HEXACHLORO-5-NORBORNENE-2,3-DICARBOXYLIC ANHYDRIDE - Reference Information
| LogP | -1.59-1.39 at 20-25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | chloro-bridge anhydride and chloro-bridge acid are reactive flame retardants, suitable for unsaturated polyester, polyurethane and epoxy resin, also used as a curing agent for epoxy resins. The heat distortion temperature of the epoxy resin product cured by the product is about 180, and the drug resistance is good. The chlorine Bridge acid is also used as a dye intermediate and an insecticide. It is also used as a flame retardant for fabrics. reactive flame retardants for epoxy resins and polyurethanes |
| production method | from the reaction of hexachlorocyclopentadiene and maleic anhydride. Hexachlorocyclopentadiene and maleic anhydride are mixed in the solvent chlorobenzene in a molar ratio of 1:1.1, reacted at 140-145 ℃ for 7-8H, and then the reaction product is added to water for hydrolysis, the chlorine Bridge acid obtained by hydrolysis at 70 ° C becomes an oily liquid, and is miscible with water when heated to 96-97 ° C. After cooling, it becomes chlorine Bridge acid containing a crystal water (Het acid[115-28-6]). If the reaction product is crystallized with hot water and dilute acetic acid, and the monohydrate is dried at 100-105 ° C., the chloro-bridge anhydride is obtained. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 2300 mg/kg; Oral-mouse LD50: 2400 mg/kg |
| stimulation data | eyes-rabbit 100 mg severe |
| flammability hazard characteristics | toxic chloride fumes from thermal decomposition |
| storage and transportation characteristics | low temperature ventilation and drying |
| extinguishing agent | water, carbon dioxide, foam, dry powder |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 20:52:54
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