Dichloromethane (DCM)

A low-boiling, high-solvency chlorinated solvent built for low-temperature extraction and fast degreasing.

At a Glance

CAS No.	75-09-2
Chemical Name	Dichloromethane (methylene chloride, methylene dichloride, DCM)
Molecular Formula	CH2Cl2
Purity	≥99.5%
Origin	China
Packaging	210 L steel drum (250 kg) / IBC / ISO tank container / small drum
Lead Time	15–20 working days after deposit

Product Overview

Dichloromethane is the mainstream low-boiling chlorinated solvent on the market. It is produced by continuous chlorination of methanol, with multi-stage distillation removing free acid and light and heavy ends. Purity holds at ≥99.5% with almost no batch-to-batch variation, so it does not disturb precision processes or synthesis reactions. The liquid is clear and bright with a light sweet odour and a boiling point of only 39.8 °C, so it evaporates very quickly and dissolves resins, oils, waxes and organic active substances alike, and it does not readily burn — safer in production than hydrocarbon or ester solvents.

Pharmaceutical, new-energy electronics and polyurethane industries keep expanding worldwide, and that drives steady growth in baseline demand. Low-temperature extraction, fast cleaning and easy distillation recovery give it three core advantages, and there is currently no low-cost substitute for purifying heat-sensitive materials or cleaning high-precision electronics. It is stable when stored sealed at ambient temperature; it only needs protection from light and moisture and must be kept away from alkali metals for long-term storage, and closed-loop operation delivers outstanding cost performance.

Key Advantages

Ultra-Low Boiling Point for Fast, Residue-Free Cleaning

It evaporates rapidly at ambient temperature, so electronic components and precision parts come out free of water marks and ionic residue without a high-temperature drying step — ideal for heat-sensitive substrate lines.

Strong Solvency with Inherent Safety

High dissolving efficiency for cured paint films, adhesive residue and heavy oil contamination, with a narrow explosive range that lowers fire risk on the shop floor compared with light solvents such as acetone or ethyl acetate.

Low-Temperature Extraction for Heat-Sensitive Materials

Active substances can be separated at low temperature, so heat-sensitive actives in pharmaceuticals and flavours are not damaged and purification yield rises substantially.

Repeated Distillation Recovery Keeps Costs Down

A low boiling point makes separation simple and gives distilled spent liquid with few impurities, allowing many reuse cycles and a continuing reduction in solvent purchasing and hazardous waste disposal spend.

Applications

Dichloromethane is used across precision electronics cleaning, industrial paint and adhesive removal, pharmaceutical extraction and polyurethane foaming.

• Precision electronics cleaning — removal of flux, oil and photoresist residue from PCB boards, semiconductor chips, optical lenses and lithium battery components, reaching cleanliness specifications without corroding the substrate.
• Industrial paint and adhesive removal — the core raw material for paint removers used on metal equipment, plastic parts and printing screens, quickly stripping aged paint films, pressure-sensitive adhesive and cured resin for faster rework.
• Pharmaceutical purification and extraction — a low-temperature separation solvent for cephalosporin, vitamin and hormone APIs, gently extracting active botanical ingredients with easy separation and high purity.
• Polyurethane foaming — a low-boiling blowing aid for flexible and rigid foam production that gives even foaming and a fine, stable cell structure.

Technical Specifications

Appearance	Colourless transparent liquid with an aromatic odour
Purity	≥99.5%
Molecular Formula	CH2Cl2
CAS No.	75-09-2
EINECS No.	200-838-9
Relative Density (water = 1)	1.33
Flash Point	No data available
Boiling Point	39.8 °C
Hazard Classification	Class 6.1 toxic substance
Stability	Chemically rather inert at ambient temperature and not readily flammable; storage stability is acceptable when sealed and protected from light, though high temperature and strong alkali should be avoided
Solubility	Slightly soluble in water; soluble in ethanol and ether
Storage	Store separately in a cool, light-shielded hazardous chemicals warehouse at ≤32 °C with humidity kept below 80%. Keep containers fully sealed against moisture and do not store with alkali metals or food-grade raw materials. The area requires explosion-proof ventilation, sand absorbent material and dedicated firefighting equipment.

Composition

Component	Concentration	CAS No.
Dichloromethane	≥99.5%	75-09-2

Transport & Compliance

UN No.	UN1593
Hazard Class	Class 6.1 toxic substance
Packing Group	III
HS Code	2903120000
Packaging	250 kg per drum (210 L steel drum)

UN and HS codes are shown for reference only — please confirm with us before shipment.

FAQ

What is your minimum order quantity?

Our MOQ is one 20GP container — up to 80 drums of 210 L.

What packaging do you offer?

Standard 210 L steel drums, plus IBC totes, ISO tank containers and small drums.

How many drums fit in a 20GP or 40GP, and can you consolidate?

Yes, we consolidate up to 5 product types in one shipment. A 20GP holds up to 80 drums (210 L); a 40GP holds around 130 drums (210 L).

What is the lead time?

15–20 working days after the deposit is received.

Which export documents do you provide?

COA, MSDS, commodity inspection certificate and dangerous goods packaging certificate. We can also assist with Certificate of Origin and other customs paperwork.

What payment terms do you accept?

T/T: 30% deposit, 70% balance against a copy of the Bill of Lading.

Technical Documents