Mono Chloro Benzene
A high-purity chlorinated aromatic liquid supplied in bulk as nitration feedstock, process solvent, and intermediate for dye, rubber, and specialty chemical manufacture.
What is Mono Chloro Benzene?
Mono Chloro Benzene — MCB, or simply chlorobenzene — is a colourless liquid with a faint almond-like odour, produced by the catalytic chlorination of benzene.
It is the entry point to a large part of the chlorinated aromatics chain. Nitration converts it into the ortho and para nitrochlorobenzenes, which in turn lead to the nitroanilines, chloroanilines, and anisidines that dominate dye, pigment, and agrochemical intermediate manufacture.
At Chelora Chemicals, MCB is distilled to a high assay with benzene, dichlorobenzene, and moisture held to specification, since carry-over of any of these affects both nitration selectivity and product quality downstream.
- Appearance
- Clear, colourless liquid
- Odour
- Faint, almond-like
- Solubility
- Practically insoluble in water; miscible with organic solvents
- Function
- Feedstock / process solvent
- Grade
- Technical / bulk
Formula diagram
A single chlorine attached to a benzene ring
- Molecular formulaC6H5Cl
- Molecular weight112.56 g/mol
- IUPAC nameChlorobenzene
- Functional groupsAryl chloride
- CAS number108-90-7
Technical product information
Standard specification for Chelora Chemicals' technical grade Mono Chloro Benzene. Custom-grade and bulk specifications are available on request.
| Chemical name | Mono Chloro Benzene |
|---|---|
| Synonyms | MCB, Chlorobenzene, Phenyl chloride, Benzene chloride |
| CAS number | 108-90-7 |
| Molecular formula | C6H5Cl |
| Molecular weight | 112.56 g/mol |
| Assay (purity) | ≥ 99.9% |
| Appearance | Clear, colourless liquid |
| Density (20°C) | 1.105–1.110 g/cm³ |
| Boiling point | 131–132°C |
| Melting point | −45°C |
| Flash point | 28°C (closed cup) |
| Benzene content | ≤ 0.05% |
| Moisture | ≤ 0.03% |
| Packaging | 250 kg drums, 1000 kg IBC, ISO tank, bulk tanker |
| Shelf life | 24 months in sealed original packaging |
Applications of Mono Chloro Benzene
Nitration feedstock
Nitrated to ortho and para nitrochlorobenzene, the gateway to nitroaniline, chloroaniline, and anisidine chemistry.
Process solvent
A stable, moderately volatile solvent for isocyanate, resin, adhesive, and pesticide formulation.
Dye & pigment intermediates
Feeds the chlorinated aromatic chain used across colour chemistry.
Rubber chemicals
Applied as a reaction and processing solvent in rubber chemical manufacture.
Pharmaceutical synthesis
Used as a reaction medium and building block in fine chemical routes.
Industrial cleaning
Applied in degreasing and process cleaning where a chlorinated aromatic solvent is required.
Why choose Chelora Chemicals
Every batch of Mono Chloro Benzene is manufactured, tested, and documented to a standard that formulators and process chemists can build on with confidence — from first sample to full production volume.
Consistent purity
Assay controlled at ≥99.9% with benzene, dichlorobenzene, and moisture verified before dispatch.
Full documentation
COA, SDS, and regulatory data supplied with every shipment.
Flexible volumes
From 250 kg drums to IBC, ISO tank, and bulk road tanker supply.
Technical support
Process, handling, and compliance guidance from our chemistry team.
Storage and guidelines
- 01Store in tightly sealed original containers in a cool, dry, well-ventilated store.
- 02Treat as a flammable liquid — the flash point is 28°C, below many summer warehouse temperatures.
- 03Eliminate ignition sources, use explosion-protected equipment, and earth and bond all containers and lines during transfer.
- 04Segregate from strong oxidising agents, strong bases, and active metals such as aluminium and magnesium powder.
- 05Use compatible materials: carbon steel, stainless steel, or lined vessels; check elastomer seal compatibility.
- 06Bund all bulk storage and prevent any release to drains, surface water, or soil.
Handling precautions
MCB is a flammable liquid with a flash point of 28°C. In a warm store the vapour above the liquid can be within the flammable range, so ignition source control is the primary hazard control.
It is harmful if inhaled or swallowed, causes skin irritation, and may cause drowsiness or dizziness at elevated vapour concentrations. Use closed transfer and effective ventilation.
The almond-like odour is not a reliable warning of hazardous concentrations and should never be used to judge exposure.
Chlorinated aromatics decompose in a fire to produce hydrogen chloride and other hazardous combustion products. Fire-fighters require full breathing apparatus.
The product is very toxic to aquatic life with long-lasting effects. Bunding, containment, and drain protection are essential at every handling point.
Refer to the full Safety Data Sheet for exposure limits, fire-fighting measures, spill containment, and first-aid information before use.
Frequently asked questions
What is Mono Chloro Benzene used for?
Mostly as a nitration feedstock on the route to nitrochlorobenzenes and the aniline derivatives beyond them, and as a high-quality process solvent for isocyanates, resins, adhesives, and pesticide formulation.
How is chlorobenzene manufactured?
By chlorinating benzene over a Lewis acid catalyst. The reaction also produces dichlorobenzenes, which are separated by distillation, so the dichloro content of the finished product is a standard specification.
What does MCB become downstream?
Nitration gives PNCB and ONCB. Those lead to p-nitroaniline, o-nitroaniline, the chloroanilines, o-anisidine, and onward into dyes, pigments, agrochemicals, and pharmaceutical intermediates — much of the range on this site starts here.
Why is the flash point so important for this product?
At 28°C it sits below normal summer ambient in many locations, so the material is genuinely flammable in storage rather than merely combustible. Explosion-protected equipment, bonding, and earthing are required rather than optional.
Why is benzene content specified?
Residual benzene from incomplete conversion is both a quality issue and a health one, since benzene carries a stricter classification than chlorobenzene. Keeping it low protects downstream product quality and workplace exposure.
Is it soluble in water?
Practically insoluble, and it is denser than water so a spill will sink rather than float. It is miscible with alcohols, ethers, and most organic solvents.
What materials of construction are suitable?
Carbon steel, stainless steel, and lined vessels in normal service. Elastomer seals should be checked, since chlorinated aromatics swell many common rubbers. Avoid contact with aluminium and magnesium powder.
What purity do you supply?
Standard technical grade is supplied at a minimum assay of 99.9% with benzene at or below 0.05% and moisture at or below 0.03%. Tighter specifications can be produced to a customer specification sheet.
What packaging is available?
250 kg drums, 1000 kg IBCs, ISO tanks, and bulk road tankers. Tanker deliveries require confirmed offloading procedures and receiving-tank compatibility before dispatch.
Is MCB regulated?
It carries flammable liquid transport classification, workplace exposure limits, and environmental controls in most jurisdictions. Some markets restrict certain solvent uses. Confirm your national requirements before ordering.
Do you provide a Certificate of Analysis?
Yes. Every consignment ships with a Certificate of Analysis and Safety Data Sheet covering assay, benzene and dichlorobenzene content, density, moisture, and appearance.