Products
Safe, Compliant & Sustainable Chemistry

Dichloromethane 20L
- Product Name: Dichloromethane 20L
- Chemical Name (IUPAC): Dichloromethane
- CAS No.: 75-09-2
- Chemical Formula: CH2Cl2
- Form/Physical State: Liquid
- Factroy Site: Yudu County, Ganzhou, Jiangxi, China
- Price Inquiry: sales4@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
- CONTACT NOW
- Dichloromethane 20L is typically used in formulations when solvent polarity and evaporation rate must be controlled within specific ranges.
| HS Code | 748007 |
| Chemical Name | Dichloromethane |
| Common Names | Methylene chloride |
| Cas Number | 75-09-2 |
| Molecular Formula | CH2Cl2 |
| Molar Mass | 84.93 g/mol |
| Appearance | Colorless, volatile liquid |
| Odor | Sweet, chloroform-like |
| Boiling Point | 39.6°C |
| Density | 1.33 g/cm³ at 20°C |
| Solubility In Water | 13 g/L at 20°C |
| Flash Point | None (non-flammable by conventional methods) |
| Container Size | 20 liters |
| Vapor Pressure | 58.5 kPa at 20°C |
| Melting Point | -96.7°C |
| Refractive Index | 1.424 at 20°C |
As an accredited Dichloromethane 20L factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Dichloromethane 20L is packaged in a durable blue HDPE drum with secure screw cap, labeled clearly with hazard warnings. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Dichloromethane 20L: 20ft container holds approximately 640 cans (20L each), securely palletized and tightly packed. |
| Shipping | Dichloromethane 20L is shipped as a hazardous chemical in approved, tightly sealed containers. Transport complies with local and international regulations for Class 6.1 toxic substances. The package includes appropriate hazard labeling, safety documentation, and is handled by certified personnel, ensuring leak-free, secure delivery to the destination. |
| Storage | Store Dichloromethane (20L) in a cool, well-ventilated area, away from direct sunlight, heat sources, and incompatible substances such as strong bases and oxidizers. Use corrosion-resistant containers kept tightly closed. Ensure proper labelling and secondary containment to prevent leaks. Ground storage containers to prevent static discharge, and keep away from ignition sources. Access should be restricted to trained personnel only. |
| Shelf Life | Dichloromethane 20L typically has a shelf life of 2 years when stored tightly sealed in a cool, well-ventilated area. |
Applications of Dichloromethane 20L in Industrial Manufacturing
As a core chemical raw material, dichloromethane (DCM) is valued for its high solvent power and volatility, supporting a range of specialized downstream industrial applications. The following sections highlight major sectors where our dichloromethane 20L drums enable precise and consistent results in manufacturing environments.
1. Pharmaceutical API Extraction & Purification
Pharmaceutical manufacturers integrate dichloromethane in selective extraction and crystallization processes during active pharmaceutical ingredient (API) production, particularly for corticosteroids, alkaloids, and certain penicillin derivatives. DCM’s immiscibility with water and precise volatility facilitate phase separation and controlled purification, ensuring high yield and purity in sensitive multi-stage syntheses and downstream drying steps.
Industry compliance standards
- USP (United States Pharmacopeia) and EP (European Pharmacopoeia) residual solvent limits
- ICH Q3C (Impurities: Guideline for Residual Solvents)
- cGMP (Current Good Manufacturing Practice) systems
- CFDA (China Food and Drug Administration) Drug Production Quality Control Standards
Typical usage ratio
- 0.5–5 L DCM per kg of API, adjusted depending on target molecule solubility and batch volume
Downstream process integration
- Solvent-based liquid-liquid extraction during intermediate and final API purification steps
- Applied in crystallization setups for enhanced yield and purity
- Incorporated during azeotropic distillation to remove water traces
Final product types
- Purified APIs (e.g., prednisolone, tetracyclines, ampicillin derivatives)
- Injectables and solid oral pharmaceuticals requiring high-purity actives
2. Polycarbonate and Cellulose Acetate Polymer Processing
Major polymer producers utilize dichloromethane for dissolving, casting, and degreasing in the fabrication of polycarbonate (PC) and cellulose acetate products. It serves as a precision casting solvent for medical-grade films and engineered thermoplastics, ensuring clear, stress-free polymer structures suitable for optical and packaging applications.
Industry compliance standards
- EN ISO 9001:2015 (Quality Management for polymer compounds)
- RoHS (Restriction of Hazardous Substances Directive, for electronics)
- USP Class VI (for medical-grade plastics)
- ISO 10993 (Biological evaluation of medical devices, plastic components)
Typical usage ratio
- 10–30% w/w based on resin mass, tuned depending on polymer type and desired film thickness
Downstream process integration
- Direct mixing with polymer granules for solvent-casting in controlled atmosphere tanks
- Used as a polymer cleaner and pre-treatment degreaser prior to extrusion or molding
Final product types
- Optical sheets and lenses (polycarbonate base)
- Medical device housings and laboratory consumables
- Cellulose acetate photographic film
- Food-grade plastic wrap and specialty packaging films
3. Foam Blowing Agent for Polyurethane Manufacturing
Dichloromethane functions as a key physical blowing agent in rigid and semi-rigid polyurethane (PU) foam manufacturing, particularly for refrigeration, insulation, and specialty construction panels. Its rapid vaporization triggers uniform cell nucleation, imparting fine, homogenous foam structure with low thermal conductivity.
Industry compliance standards
- EN 14315-1 (Thermal insulating products for buildings)
- ASTM C1029 (Standard Specification for foam insulating materials)
- REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals)
- ISO 9001:2015 Quality Management for foam production
Typical usage ratio
- 10–15% by weight of total PU formulation, modulated per panel density and cell structure requirements
Downstream process integration
- Premixed into polyol blend prior to addition of isocyanate for foam expansion
- Continuous-metered addition in automated foaming lines
Final product types
- Rigid thermal insulation panels for construction
- Refrigeration unit insulation blocks
- Specialty packaging foam inserts
4. Metal Surface Degreasing and Precision Cleaning
Precision metal fabricators rely on dichloromethane’s strong solvency for batch and continuous cleaning of metal surfaces prior to coating, electroplating, or assembly processes. Its rapid evaporation supports residue-free drying and high throughput, making it suitable for high-spec aerospace, medical, and electronics component preparation.
Industry compliance standards
- AMS 2700 (Aerospace Material Standards for cleaning and preparation)
- ISO 16232:2018 (Cleanliness of components in fluid circuits)
- IEC 61340-5-1 (For ESD control in electronics)
- RoHS conformity for post-cleaned substrates
Typical usage ratio
- 25–80 mL per kg of substrate, adjusted for size, complexity, and surface contamination level
Downstream process integration
- Immersion tank and ultrasonic bath degreasing prior to anodizing, plating, or welding
- Spray or wipe applications for final cleaning ahead of sensitive component assembly
Final product types
- Electronics-grade copper, aluminum, and steel assemblies
- Aerospace structures and fasteners
- Precision machined parts for medical devices and instrumentation
5. Ink and Paint Stripping in Industrial Refurbishment
The coatings industry utilizes dichloromethane in controlled paint and ink removal formulations for heavy-duty refurbishment of industrial machinery, transport vehicles, and printed component recycling. DCM efficiently penetrates and disrupts cross-linked paints, enabling rapid multi-layer stripping without damaging underlying substrates, including metals and certain polymers.
Industry compliance standards
- EU REACH Annex XVII (Use restrictions for paint strippers)
- OSHA 29 CFR 1910.1200 (Hazard Communication: chemical labeling and handling)
- ISO 12944 (Protective coatings compliance for re-coating projects)
- Local environmental permits for industrial effluent management
Typical usage ratio
- 30–70% by volume in commercial paint stripper blends, exact percentage based on film thickness and substrate type
Downstream process integration
- Application in immersion tanks, spray booths, or brush-on gel formats for industrial-scale de-coating
- Residue rinsing and neutralization in post-stripping process line
Final product types
- Refurbished vehicle frames and machinery housings
- Reprocessed metal fabrication components
- Stripped electronic and mechanical parts for remanufacturing
Competitive Dichloromethane 20L prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to sales4@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: sales4@ascent-chem.com
Get Free Quote of Ascent Petrochem Holdings Co., Limited
Flexible payment, competitive price, premium service - Inquire now!
- Dichloromethane 20L is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales4@ascent-chem.com.
Dichloromethane 20L: A Reliable Choice Directly From the Source
Trusted Manufacturing, Batch After Batch
Producing Dichloromethane at scale puts us face-to-face with the demands and challenges that come with chemicals that form the backbone of so many industries. Sitting here on the manufacturing floor, seeing batches go through quality checks and purity analyses every day, reinforces what matters: consistency, reliability, and transparency. We supply the 20L packaging not because it's trendy, but because our customers in pharmaceuticals, paint stripping, and adhesives prefer a size that balances ease of handling with the volume needed to run processes smoothly.
Our Label: Model Insights & Batch Commitment
The 20L model reflects both capacity and the outcome of years spent refining our packaging systems. It’s more than a drum with a label. From resin choices for the container to the secure chemical-grade seals, we've gone through failures and learned the hard way which container compositions withstand repeated exposure, rough handling, and temperature swings. Every drum runs through our in-house analytics — GC-MS and density tests are standard here, not luxuries. We stick to reference assays, and internal audits catch mistakes before the product leaves the site. At 99.95% minimum purity, our dichloromethane holds up to both the specs and the realities customers hit on the ground.
Why Our Dichloromethane Sees Repeat Orders
Manufacturers, especially those working with coatings or pharma intermediates, come back to us because they have seen what poor differential purity looks like in real processes. Inconsistent batches can gum up reactors, or worse, weaken a final product’s finish or shelf stability. As a producer, it’s plain: contamination costs real money, and reputation travels faster than logistics ever could. That’s why every 20L batch document comes signed by a technician, not a generic printout, right at shipping.
Specifications That Speak to Industry Needs
We don’t hide behind buzzwords or excessive branding. Our dichloromethane 20L maintains a water content below 0.02% on average, and traces of stabilizers are declared clearly. Any customer who cares about residual acetone, formaldehyde, or other volatile contaminants gets full chromatographs upon request. For engineers running pharma lines or QC teams overseeing extraction units, this depth of information saves hours and eliminates surprises. Regulatory compliance is not just a box to tick; it protects workers and end-users alike, so we keep records strict and traceable.
Uses That Go Beyond the Bench
Some talk about dichloromethane as just a solvent, but real users know this chemical pulls double or triple duty, often across separate shifts and entirely different product lines. Extraction, cleaning of precision parts, heat transfer in specialized systems—these aren’t just bullet points in a spec sheet, they’re realities we hear about straight from users, month after month. Paint shops have told us how switching from low-grade stock to our 20L bulk pack improved stripping rates without ghosting or residue. Pharmaceutical engineers share batch yields pre- and post-transition, highlighting the difference between lab-grade and what’s marketed as “industrial grade” by brokers with no production history.
Packaging: Real Lessons Learned
Packaging isn’t glamorous until you’re staring at a leaked drum or a dented container on a Friday at 4 PM. Over the years, we swapped suppliers for cap liners, reinforced handles for ergonomic grips, and worked with logistics teams to nail down stacking that doesn’t crush or deform during transit. Every time we rolled a test batch out, we learned something that saved the next order from becoming an incident report. Foam-in-place for cushioning is standard now, implemented after three incidents with rough terrain. Shrink wrap became routine after warehouse operators flagged condensation and slip risks. Some of these lessons hit our expense sheet, but they prevent failures that cost more in recall and trust.
Where Dichloromethane 20L Fits, and Where It Doesn’t
Customers have asked if our 20L product can simply replace every smaller pack outright. Truth is, it isn’t always the answer. For labs handling milliliter aliquots, downsizing on-site avoids waste and risk. But for mid-sized workshops and continuous lines, the 20L drum delivers better cost-per-liter, less labor in drum changes, and reduced carbon footprint when compared against dozens of single-use containers. Larger totes, while sometimes feasible, can complicate handling and increase exposure risks unless equipment is calibrated for them. We don’t overpromise: if a customer’s storage set-up can’t manage vented or temperature-controlled containment, we point them to a smaller, more controllable unit, because the end goal is safety as much as sales.
Handling and Upshot Stories from the Floor
Many safety innovations didn’t start with memos; they began with worker feedback. We’ve had operators show us where valve designs made a difference in one-handed pours, or where a drum’s too-slick surface caused close calls. Now our containers feature ribbed grips and secondary seals. We post every incident report and near-miss internally, using these narratives to push improvements that make our 20L drums both tough and user-friendly. For workshops with basic recirculation set-ups, we suggest simple foot pump kits for transfer—these came from field request, not a boardroom blueprint.
Differentiating Against Other Dichloromethane Products
The market is full of options, but years in production have shown us what sets each apart. Many bulk suppliers operate as brokers, purchasing third-party warehouse lots and relabeling containers. They depend on upstream documentation instead of in-house records. We blend, stabilize, and test on site, with logs available for every run. Some products use different stabilizers depending on source region; we stick to a single stabilizer protocol and disclose it openly. This prevents variable process residues that can show up downstream, especially in pharmaceuticals or electronics applications.
Pharma-grade dichloromethane often gets conflated with broad “technical grade” drums sold into cleaning or degreasing markets without clarity. We’ve seen buyers pay for “pure” product, then struggle with hazy residues or variance in evaporation rates. The costs roll downhill—lost batches, QC investigations, and in the worst cases, mandated recalls when impurities exceed thresholds. By sticking to standardized processing and batch-level purity checks, we cut off these headaches before they start.
Environmental Responsibility on the Production Floor
Handling dichloromethane means doing things right—not just for compliance, but for the people who live nearby and the workers who rely on safe air, water, and soil every day. Our reclamation units treat effluent streams on site, capturing vapors and filtering chlorinated residues as near to zero as technical know-how allows. We share monitoring stats not to tick regulatory boxes, but so engineers and managers can see the data for themselves. The 20L packaging was redesigned with recycling in mind, cutting out composite layers that complicated clean material recovery in earlier iterations. Simple changes like this stem from hundreds of hours on the line, figuring out what creates real, measurable reductions in persistency and transport risks.
Getting The Right Product: Factual Checks Over Hype
Our industry has seen sales copy promise the world—then leave buyers holding the bag with off-spec inventory. We skip the hype. Every outgoing drum gets barcoded for traceability through warehousing, transit, and final customer receipt. Internal audits track out-of-spec events down to the individual operator and shift, with corrective action logged transparently. If a customer finds irregularities, we provide the technical path and root cause analysis, not a runaround. This approach built long-term, return business with firms whose processes can’t afford variable input chemistry.
Addressing Common Process Challenges
Application engineers often tell us about issues with residue formation, fluctuating evaporation rates, or incompatibility with ancillary chemistries. We’ve tackled these by going back to raw material selection—choosing feedstocks that minimize heavy ends and secondary chlorinated species. We maintain consecutive distillation records, so if a process change appears in the final use, we can trace its origins. We stopped using calcium-based drying agents after reviewing user feedback on residue, adjusting our process to incorporate advanced molecular sieves—an upgrade that significantly improved downstream yield for our regular extractive distillation customers.
Our direct conversations with fabricators have shown that physical delivery timing is as crucial as product quality. Seasonal temperature swings and shipment delays create unique issues with dichloromethane, so we invested in in-line tank heaters and triple-coat drums to limit volatility loss or condensation. Some solutions only become obvious after seeing failures in real-world settings; then they turn into standard practices that benefit every future order.
Authentic Quality: What We See, What Customers Get
Quality doesn’t start at a computer terminal but on the drum line. If solvents arrive hazy or give off odd odors, no certificate in the box can cover for underlying problems. We train our staff to recognize sensory cues—not just numbers—because batches still tell stories through appearance and scent long before chromatograms hit the QC lab. These methods mean we occasionally pull product from a shipment or delay a delivery. While this might frustrate sales managers, it prevents larger issues and cements the trust our returning clients expect.
Why This Product Remains Consistently in Demand
Dichloromethane 20L earns its place by meeting the multifaceted needs of manufacturing, maintenance, and development teams nationwide. When a paint shop doubles down on solvent demand mid-project, or a pharma group validates a new synthesis route, reliability in supply and quality keeps the wheels turning. Our regular clients seldom call us with emergencies—most communication centers on planning and capacity needs, not crisis management or complaint resolution. That level of predictability separates a direct manufacturer from brokered sellers and builds confidence for the next order, month after month.
Factory-Floor Feedback: Listening and Evolving
No batch goes out without input from the teams who fill, seal, and handle the product day after day. Suggestions for improvements, from tamper-evident seals to incremental changes in drum shape, come straight from these operators. By shifting listening from email threads and customer surveys to real-time floor logs, we’ve adopted changes that make a customer’s work easier, whether on a bottling line or a maintenance bench. The most successful upgrades happened because experienced hands saw where yesterday’s design just didn’t hold up anymore.
Continuous Improvement, Not Just Compliance
Meeting industry standards means going beyond paperwork. Our documentation is specific and timely, and each batch is signed off by a technician who knows the product, not just a faceless office. By conducting root cause analysis for every deviation, we stay ahead of repeat issues and transfer those solutions to future output. Even a routine QC flag turns into operator retraining or equipment adjustment—never a shortcut. Our customers see these efforts in the consistent clarity and performance of each 20L drum.
What Our Decades of Experience Show
Years in the chemical manufacturing business breeds a healthy skepticism for shortcuts. We’ve seen how evolving regulatory landscapes push for safer, more controlled materials—and how lack of vigilance opens the door to costly incidents and recalls. Each delivery is a record of what’s been learned through past challenges, from shifting stabilizer profiles to staying ahead of tighter purity requirements. The reality on the floor—spill control plans, redundant safety valves, incrementally improved drum threads—matters more than a new logo or marketing push.
Looking Forward: More Than a Commodity
For us, dichloromethane 20L supplies more than just a transaction. Every batch that leaves the factory doors bears not just our label but the accumulated lessons of careful feedback, real testing, and industry-wide engagement. It’s a product built by and for those who rely on chemical consistency and transparency to create value in their own right—never just an entry in a price sheet.
Summary: Direct from Production, Trusted in the Field
We put our name behind the dichloromethane 20L product because its design, manufacture, and shipment all originate in a commitment to do better not just for today’s order but for the standards that shape the chemical industry’s next decade. The trust our clients place in each delivery comes from tangible experience in manufacturing, problem solving, and practical quality control—not theoretical ideals or marketing gloss. That’s the difference a manufacturer brings to the table, every day.
