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) |