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Acids & Solvents

Methylene Dichloride (MDC) Solvent: Handling, COA and Safe Storage for Buyers

MDC (dichloromethane) solvent — vapour control, drum integrity, moisture on COA, PPE and when to RFQ ethyl acetate instead.

9 min read · 2026-10-08

By Rajesh Chauhan, Proprietor, Drashti Chemicals

Supplying industrial chemicals from Vadodara since 2015 — ETP coagulants, RO programs, and process chemicals with batch COA/MSDS.

Methylene dichloride (MDC, dichloromethane, CAS 75-09-2) is a dense, fast-evaporating chlorinated solvent used in resin cleanup, foam blowing assist, pharmaceutical extraction (where licensed), and selected degreasing — not a general floor-washing chemical. The first compliance question on an RFQ is whether your licence, fire system and occupational exposure programme actually allow MDC duty on site.

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Expert supply · Est. 2015

Mr Rajesh Chauhan

Founder-led industrial chemical supply from Vadodara — ETP coagulant selection, RO programs, textile and pharma utility chemicals. Batch COA/MSDS on every dispatch. GSTIN 24AGLPC6288M1ZX.

Drashti Chemicals supplies MDC from Vadodara with batch COA (purity, moisture, often stabilizer/amylene where manufacturer adds it). We quote drums as available; we do not publish solvent list prices — share monthly litres and moisture ceiling from your spec.

What COA should show for MDC

Typical industrial COA lines: assay/purity, moisture ( Karl Fischer ), colour, non-volatile residue, and stabilizer level if present. Moisture matters for moisture-sensitive reactions and some extraction trains.

Match lot number to drum label before opening. Chlorinated solvents are frequently adulterated in the grey market — COA plus trusted supplier qualification is your defence.

Vapour, exposure and ventilation

MDC vapour is heavier than air and collects in pits, trenches and low store rooms. Use local exhaust at decanting points, bonded grounding for drums, and gas detection where your EHS team requires it.

PPE: chemical-resistant gloves (not thin disposable nitrile alone for splash), goggles, and respiratory protection per your industrial hygienist when vapour exceeds limits.

Storage and incompatibility

Store cool, closed, away from strong oxidisers, alkali metals and open flame. Drum bays need flame-proof electrical classification where regulations apply — MDC is not classified like a simple alcohol.

Do not pressure-dispense from damaged drums. Secondary containment prevents groundwater incidents if a bung fails.

When buyers ask for ethyl acetate instead

Flammable ester solvents (ethyl acetate, n-butanol blends) suit some adhesive and coating cleanups where chlorinated solvent is banned on customer spec. MDC and EA are not drop-in replacements — surface drying, toxicity profile and fire code differ.

Tell us the duty (degrease, resin wash, extraction) and we can quote MDC plus alternates from the same acids-solvents category.

Logistics from Vadodara

MDC ships in steel or HDPE drums as quoted. RFQ with GIDC destination, monthly drum count, and any export documentation if material leaves India.

GST invoice with HSN, COA and MSDS per lot — standard Drashti documentation pack for vendor qualification files.

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Frequently Asked Questions

Is methylene dichloride the same as dichloromethane?

Yes — same CAS 75-09-2. MDC and DCM are common names in Indian trade.

Why does moisture on COA matter?

Water in MDC can affect moisture-sensitive synthesis and some extraction efficiencies. State your max moisture on the RFQ if your SOP has one.

Can MDC replace perchloroethylene in dry cleaning?

That is equipment and licence specific — not a simple swap. RFQ with machine OEM guidance; we supply quoted solvent grade only.

Do you supply MDC across Gujarat?

Yes — road dispatch from Vadodara. Share quantity and storage licence context so we confirm pack and documentation before PO.

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