CompoundList
Sign in
Refrigerants and blowing agents

Dichlorodifluoromethane

Also known as Difluorodichloromethane, Genetron 12, Freon 12

CAS 75-71-8Formula CCl2F2Molar mass 120.91 g/molEC 200-893-9
GHS signal word: Warning. Pictograms: Gas under pressure Controlled, licensed buyers only
Request as a licensed buyer Safety data
Dichlorodifluoromethane chemical structure, CCl2F2, CAS 75-71-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless gas [Note: Shipped as a liquified compressed gas]
Melting point
-157.1 °C
Boiling point
-29.8 °C
Density
Relative density (water = 1): 1.5
Solubility
In water, 280 mg/L at 25 °C
HS code
290377
Category
Refrigerants and blowing agents
UN number
UN 1028

What is Dichlorodifluoromethane?

Plain description, key identifiers and synonyms

Dichlorodifluoromethane is an organochlorine compound and an organofluorine compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dichloro(difluoro)methane
CAS number
75-71-8 CAS number cross-checked
EC number
200-893-9
Molecular formula
CCl2F2
UNII
OFM06SG1KO
MDL number
MFCD00000781
InChIKey
PXBRQCKWGAHEHS-UHFFFAOYSA-N
InChI
InChI=1S/CCl2F2/c2-1(3,4)5
SMILES (canonical and isomeric)
C(F)(F)(Cl)Cl

Synonyms

  • Difluorodichloromethane
  • Genetron 12
  • Freon 12
  • Halon
  • Frigen 12
  • Refrigerant 12
  • Isotron 2
  • Arcton 6
  • Eskimon 12
  • Electro-CF 12
  • Chlorofluorocarbon 12
  • Algofrene type 2
  • Propellant 12
  • Isotron 12
  • Arcton 12
  • Forane 12
  • Kaiser chemicals 12
  • Dymel 12
  • Ledon 12
  • Isceon 122
  • Fluorocarbon-12
  • Freon F-12
  • Halon 122
  • Ucon 12
  • Refrigerant R 12
Show all 38 synonyms
  • Ucon 12/halocarbon 12
  • Methane, dichlorodifluoro-
  • Dwuchlorodwufluorometan
  • Freon-12
  • Fluorocarbon 12
  • R 12 (refrigerant)
  • Diclorodifluometano
  • Rcra waste number U075
  • FC 12
  • CFC 12
  • FCC 12
  • FKW 12
  • Methane, dichlorodifluoro

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless gas [Note: Shipped as a liquified compressed gas]exp.
Odour
Practically odorless faint, ether-like odor in high concentrationexp.
Melting point
-157.1 °Cexp.
Boiling point
-29.8 °Cexp.
Density
Relative density (water = 1): 1.5exp.
Autoignition temperature
Not flammableexp.
Solubility
In water, 280 mg/L at 25 °Cexp.
Vapour pressure
4,850 mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
120.91 g/molcalc.
Exact mass
119.9345 Dacalc.
LogP (octanol/water)
2.01calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS04: Gas under pressure
Gas under pressure

Hazard statements

  • H280Contains gas under pressure, may explode if heated.
Precautionary statements (1)
  • P410 + P403Protect from sunlight. Store in a well-ventilated place.
UN number
UN 1028
Transport hazard class
2.2

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Dichlorodifluoromethane suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Ozone depleting substance

Dichlorodifluoromethane is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Montreal Protocol Annex A Group I controlled substance

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Dichlorodifluoromethane with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Dichlorodifluoromethane price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.".

Refrigerant, foaming agent, aerosol propellant (Former).

Leak-detecting agent, freezing of foods by direct contact, chilling of cocktail glasses, refrigerant in air conditioners, plastics, blowing agent, solvent (Former).

Functional uses

  • Heat transferring agent
  • Refrigerants

How it is made

Reaction of carbon tetrachloride and anhydrous hydrogen fluoride, in the presence of an antimony halide catalyst

High temperature chlorination of vinylidene fluoride.

The most important commercial method for manufacturing CFCs and HCFCs is the successive replacement of chlorine by fluorine using hydrogen fluoride. The traditional, liquid-phase process uses antimony pentafluoride or a mixture of antimony trifluoride and chlorine as catalysts.

Read more

Continuous vapor-phase processes that employ gaseous hydrogen fluoride in the presence of heterogenous chromium, iron, or fluorinated alumina catalysts also are widely used. Carbon tetrachloride, chloroform, and hexachloroethane (or tetrachloroethylene plus chlorine) are commonly used starting materials for one- and two-carbon chlorofluorocarbons. The extent of chlorine exchange can be controlled by varying the hydrogen fluoride concentration, the contact time, or the reaction temperature. (CFCs and HCFCs)

Regulatory status

Inventories, regulations and trade controls that list this substance

Ozone depleting substance

Dichlorodifluoromethane is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: Montreal Protocol Annex A Group I controlled substance

Our policy on controlled substances

Agriculture and environment

  • Ozone depleting substance (Montreal Protocol)

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dichlorodifluoromethane is traded under.

HS 2903.77Indicative HS code

Halogenated derivatives of acyclic hydrocarbons containing two or more different halogens not elsewhere…

World exports in 2024
$39.3M
−24.9% vs 2023, imports $30M
2019 to 2024
Top exporters
  1. China78.9%
  2. United States7.6%
  3. Saudi Arabia5.2%
Top importers
  1. United States39.5%
  2. Japan13.7%
  3. Austria13.1%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Dichlorodifluoromethane is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dichlorodifluoromethane, based on the data on this page

What is Dichlorodifluoromethane?

Dichlorodifluoromethane is an organochlorine compound and an organofluorine compound.

What is the CAS number of Dichlorodifluoromethane?

The CAS registry number of Dichlorodifluoromethane is 75-71-8.

What is the molecular formula and weight of Dichlorodifluoromethane?

The molecular formula of Dichlorodifluoromethane is CCl2F2 and its molar mass is 120.91 g/mol.

What is Dichlorodifluoromethane used for?

The active ingredient is no longer contained in any registered pesticide products ... "cancelled.". Refrigerant, foaming agent, aerosol propellant (Former).

Is Dichlorodifluoromethane hazardous?

Dichlorodifluoromethane carries the GHS signal word "Warning". Main hazards: contains gas under pressure, may explode if heated. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dichlorodifluoromethane?

Dichlorodifluoromethane is usually classified under HS code 290377 (Halogenated derivatives of acyclic hydrocarbons containing two or more different…). This is indicative, confirm it with your customs broker before shipping.

Can I buy Dichlorodifluoromethane on CompoundList?

Dichlorodifluoromethane is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Dichlorodifluoromethane

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Dichlorodifluoromethane with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/dichlorodifluoromethane-75-71-8" title="Dichlorodifluoromethane structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Refrigerants and blowing agents or HS code 290377

Price on request
Free quotes, contact stays private
Licensed request