1,2-dichlorobenzene

CAS: 95-50-1

Overview

1,2-Dichlorobenzene (CAS 95-50-1 ), commonly known as ODCB, is a high-boiling aromatic solvent used across industrial processing and chemical manufacturing. It functions as a process solvent, carrier, and intermediate where thermal stability is required.

This chemical provides strong solvency for non-polar substrates in various industrial environments. In textile and leather processing, ODCB serves as a carrier solvent for disperse dyes, enabling uniform dye penetration into synthetic fibers.

The coatings and adhesives industry uses it to dissolve resins, pigment dispersions, and elastomer compounds. It is particularly effective where conventional solvents lack sufficient solvency power for specialized industrial applications.

In plastics and polymer manufacturing, it acts as a reaction medium and processing solvent. It is used extensively in polyphenylene sulfide (PPS) synthesis and other high-performance polymer production cycles.

Water treatment and industrial biocide formulations also incorporate ODCB as a solvent carrier. It helps deliver active ingredients targeting microbial control in large-scale industrial water systems and cooling towers.

1,2-Dichlorobenzene is supplied as a clear liquid in bulk quantities, including ISO tank, drum, and IBC formats. Technical grade is the standard commercial specification, with purity levels typically at 99% or higher.

Refined grades meeting tighter purity thresholds are available for sensitive synthesis and formulation applications. Our logistics network ensures reliable delivery of high-purity solvents to meet your specific manufacturing requirements.

Physical Properties

Melting Point	-16.7 °C
Boiling Point	180.1 °C @ Press: 760 Torr
Density	1.3059 g/cm³ @ Temp: 20 °C
Flash Point	150 °F
Appearance	There are three isomeric forms of dichlorobenzene (DCB): m-DCB is a flammable liquid and vapor.
Color	Clear colorless to very slightly yellow
Odor	Aromatic; characteristic aromatic.
Form	Liquid
Water Solubility	0.13 g/L (20 ºC)
Vapor Pressure	1.2 mm Hg ( 20 °C)
Refractive Index	n 20/D 1.551
Log P	3.433 at 25℃

Safety & Handling

Warning GHS07 GHS09 GHS08 GHS06 Hazard Statements H227 Combustible liquid H302 Harmful if swallowed H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H320 Causes eye irritation H331 Toxic if inhaled H332 Harmful if inhaled H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H341 Suspected of causing genetic defects H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H302+H332 Harmful if swallowed or if inhaled Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29036100
UN Number	1993
ADR Class	3
Packing Group	II
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)	3

Other Names

Industries

Textile, Leather & Paper Plastics & Polymers Printing & Packaging Coatings, Adhesives, Sealants & Elastomers Water Treatment