Isophthalic chloride
Isophthaloyl dichloride
CAS: 99-63-8
Molecular Formula: C8H4Cl2O2
Isophthalic chloride - Names and Identifiers
| Name | Isophthaloyl dichloride |
| Synonyms | ICI ICL m-phthaloyl chloride Isophthalic chloride 3-Phthaloyl Chloride Isophthaloyl chloride Isophthaloyl dichloride chlorured'isophthaloyle Isophthalic acid chloride dichloridkyselinyisoftalove Dichlorid kyseliny isoftalove 1,3-Benzenedicarbonyl Chloride 1,3-Bis(chlorocarbonyl)benzene Benzene-1,3-dicarbonyl chloride 1,3-Benzenedicarbonyl dichloride benzene-1,3-dicarbonyl dichloride chlorured'acidebenzodicarboxylique-1,3 1,3-benzenedicarboxylicacid,dichloride |
| CAS | 99-63-8 |
| EINECS | 202-774-7 |
| InChI | InChI=1/C8H4Cl2O2/c9-7(11)5-2-1-3-6(4-5)8(10)12/h1-4H |
| InChIKey | FDQSRULYDNDXQB-UHFFFAOYSA-N |
Isophthalic chloride - Physico-chemical Properties
| Molecular Formula | C8H4Cl2O2 |
| Molar Mass | 203.02 |
| Density | 1,388 g/cm3 |
| Melting Point | 43-44°C(lit.) |
| Boling Point | 276°C(lit.) |
| Flash Point | 356°F |
| Water Solubility | reacts |
| Vapor Presure | 0.03 mm Hg ( 25 °C) |
| Appearance | Crystalline Mass |
| Color | White |
| BRN | 638342 |
| Storage Condition | Store below +30°C. |
| Sensitive | Moisture Sensitive |
| Explosive Limit | 1.5-8.9%(V) |
| Refractive Index | 1.5700 (estimate) |
| Physical and Chemical Properties | Colorless or pale yellow crystals. The melting point of 41 deg C, boiling point of 276 deg C. Soluble in ether, water, alcohol decomposition. |
| Use | Used as pesticide, medicine, polymer intermediates |
Isophthalic chloride - Risk and Safety
| Risk Codes | R21 - Harmful in contact with skin R34 - Causes burns R37 - Irritating to the respiratory system R35 - Causes severe burns R23 - Toxic by inhalation |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S7/8 - S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3261 8/PG 2 |
| WGK Germany | 1 |
| RTECS | NT2625000 |
| FLUKA BRAND F CODES | 21 |
| TSCA | Yes |
| HS Code | 29173940 |
| Hazard Class | 8 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 2200 mg/kg LD50 dermal Rabbit 1410 mg/kg |
Isophthalic chloride - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | isophthaloyl chloride may be used as a raw material for aromatic fibers. it can be used to synthesize Aramid, polyacrylate, high temperature resistant resin, dye, pigment, medicine and pesticide, etc used as pesticide, medicine and polymer intermediate |
| production method | there are thionyl chloride method, phosphorus pentachloride method, Phosgene Method, dimethyl isophthalate chloride method, isophthalic acid chloride method. The phosgene method is often used, and the phosgenation reaction is usually carried out in the presence of a formamide catalyst. If isophthalic acid is first converted to an intermolecular anhydride and then subjected to phosgenation, the isophthaloyl chloride itself is used as the reaction solvent, and a higher yield can be obtained. |
| category | corrosive article |
| toxicity grade | low toxicity |
| Acute toxicity | oral-rat LD50: 2200 mg/kg; Oral-mouse LD50: 2221 mg/kg |
| stimulation data | Skin-rabbit 200 mg moderate; Eye-rabbit 40 mg mild |
| flammability hazard characteristics | flammable; Toxic hydrogen chloride gas |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Stored separately from alkali and oxidant |
| extinguishing agent | Sand, dry powder, carbon dioxide |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:11
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