| Molecular Formula | C6H4Cl2O |
| Molar Mass | 163 |
| Density | 1.6530 |
| Melting Point | 64-66 °C (lit.) |
| Boling Point | 218-220 °C (lit.) |
| Flash Point | 218-220°C |
| Water Solubility | <0.1 g/100 mL at 20 ºC |
| Solubility | 1.9g/l |
| Vapor Presure | 0.0828mmHg at 25°C |
| Appearance | Crystals or Crystalline Powder |
| Color | White to yellow |
| Merck | 14,3073 |
| BRN | 1447806 |
| pKa | pK1:6.78 (25°C) |
| Storage Condition | 2-8°C |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides. |
| Refractive Index | 1.4430 (estimate) |
| Physical and Chemical Properties | Density 1.532 boiling point 107-108°C refractive index 1.46-1.462 flash point 66°C water-soluble MAY DECOMPOSE |
| Use | For pharmaceuticals, pesticides, dyes and organic synthesis intermediates |
| Risk Codes | R34 - Causes burns R36/38 - Irritating to eyes and skin. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN 2020 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | SK8750000 |
| TSCA | Yes |
| HS Code | 29081990 |
| Hazard Note | Harmful/Corrosive |
| Hazard Class | 6.1 |
| Packing Group | III |
| Raw Materials | O-Chlorophenol Phenol Chlorine |
| Downstream Products | diclofenac sodium |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is useful as an intermediate in organic synthesis. used as pharmaceutical, pesticide, dye and organic synthesis intermediates |
| production method | from ethyl 4-hydroxybenzoate (ethylparaben) by oxidation, alkaline hydrolysis, acidification, decarboxylation. |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | oral-mouse LD50: 2120 mg/kg |
| stimulation data | Skin-rabbits 2 mg/24 h severe; eye-rabbit 0.25 mg/24 h severe |
| flammability hazard characteristics | open flame flammability; Thermal decomposition of toxic chlorides; Interaction with oxidants |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; With oxidant, food and chemical additives, separate storage of acids |
| fire extinguishing agent | foam, carbon dioxide, dry powder, sand. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |