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Refrigerants and blowing agents

Trifluoromethane

Also known as Fluoroform, Carbon trifluoride, Freon 23

CAS 75-46-7Formula CHF3Molar mass 70.01 g/molEC 200-872-4
GHS signal word: Warning. Pictograms: Gas under pressure 33 suppliers listed
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Trifluoromethane chemical structure, CHF3, CAS 75-46-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless gas
Melting point
-155.2 °C
Boiling point
-82 °C
Density
0.673 g/cm³ at 25 °C (pressure > 1 atm)
Solubility
In water, 4.09 × 10⁺³ mg/L at 25 °C
HS code
290341
Category
Refrigerants and blowing agents
UN number
UN 1984
Illustrative photo, a bundle of gas cylinders on a manifold in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Trifluoromethane?

Plain description, key identifiers and synonyms

Fluoroform is a member of fluoromethanes. It has a role as a refrigerant.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
fluoroform
CAS number
75-46-7 CAS number cross-checked
EC number
200-872-4
Molecular formula
CHF3
UNII
ZJ51L9A260
MDL number
MFCD00000446
InChIKey
XPDWGBQVDMORPB-UHFFFAOYSA-N
InChI
InChI=1S/CHF3/c2-1(3)4/h1H
SMILES (canonical and isomeric)
C(F)(F)F

Synonyms

  • Fluoroform
  • Carbon trifluoride
  • Freon 23
  • Methane, trifluoro-
  • Methyl trifluoride
  • Fluoryl
  • Halocarbon 23
  • Arcton 1
  • Refrigerant 23
  • Propellant 23
  • Freon F-23
  • R 23 (halocarbon)
  • FC 23 (fluorocarbon)
  • Genetron-23
  • Freon R 23
  • Genetron 23
  • HFC 23
  • Arcton
  • trifluoromethane-
  • Genetron HFC23
  • tris(fluoranyl)methane
  • Freon #23
  • Norflurane EP Impurity Qq
  • Trifluoromethane 99.95%
  • Trifluoromethane, >=98%
Show all 32 synonyms
  • 4-01-00-00024 (Beilstein Handbook Reference)
  • FC 23
  • Trifluoromethane, refrigerated liquid
  • Trifluoromethane or Refrigerant gas R 23 [UN1984] [Nonflammable gas]
  • UN 1984
  • Trifluoromethane or Refrigerant gas R 23
  • Trifluoromethane, refrigerated liquid [UN3136] [Nonflammable gas]

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 gasexp.
Odour
Odorlessexp.
Melting point
-155.2 °Cexp.
Boiling point
-82 °Cexp.
Density
0.673 g/cm³ at 25 °C (pressure > 1 atm)exp.
Solubility
In water, 4.09 × 10⁺³ mg/L at 25 °Cexp.
Vapour pressure
3.53 × 10⁺⁴ mm Hg at 25 °C /from experimentally-derived coefficients/exp.

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
70.01 g/molcalc.
Exact mass
70.003 Dacalc.
LogP (octanol/water)
1.18calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
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 1984
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

Trifluoromethane suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 33 suppliers
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Where suppliers are based

33 suppliers in 10 countries

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Trifluoromethane price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Refrigerant, intermediate in organic synthesis, direct coolant for infrared detector cells, blowing agent for urethane foams.

Refrigerant for low temperatures.

In refrigeration and air-conditioning systems ... CFC 13 (is replaced) by HFC 23.

Component in etch gas for integrated circuits material.

Industrial uses: Etching agent, Refrigerants, Other.

Roles

  • refrigerant

Functional uses

  • Fire extinguishing agent
  • Refrigerants

How it is made

In ethylene glycol solution at 180 °C, ... (sodium trifluoroacetate) can be made to decompose quantitatively to trifluoromethane and carbon dioxide if a boric acid buffer is present.

Prepared from CHCl3 (chloroform) and HF (hydrogen fluoride).

Higher temperatures and higher hydrogen fluoride-to-substrate ratios are necessary to achieve complete replacement of all chlorine atoms in the starting chloro compounds by fluorine.

Read more

Both liquid-phase halogen exchange in the presence of catalysts, such as antimony(V) or tin(IV) chlorofluorides and vapor phase reactions using solid-phase catalysts based on chromium are employed. Preferred starting materials are chloroform for HFC 23, dichloromethane for HFC 32, and 1,1,1-trichloroethane for HFC 143a. The conversion of tetrachloroethylene to HFC 125 and trichloroethylene to HFC 134a involves initial HF-addition across the double bond followed by a series of chlorine-fluorine exchange reactions.

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Trifluoromethane is traded under.

HS 2903.41Exact HS code

Trifluoromethane (HFC-23)

World exports in 2024
$23.3M
−8.4% vs 2023, imports $20.2M
2022 to 2024
Top exporters
  1. China39.1%
  2. Japan28.0%
  3. United States14.1%
Top importers
  1. South Korea42.6%
  2. China11.6%
  3. United States9.2%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Trifluoromethane is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Trifluoromethane?

Fluoroform is a member of fluoromethanes. It has a role as a refrigerant.

What is the CAS number of Trifluoromethane?

The CAS registry number of Trifluoromethane is 75-46-7.

What is the molecular formula and weight of Trifluoromethane?

The molecular formula of Trifluoromethane is CHF3 and its molar mass is 70.01 g/mol.

What is Trifluoromethane used for?

Refrigerant, intermediate in organic synthesis, direct coolant for infrared detector cells, blowing agent for urethane foams. Refrigerant for low temperatures. In refrigeration and air-conditioning systems ... CFC 13 (is replaced) by HFC 23. Component in etch gas for integrated circuits material.

Is Trifluoromethane hazardous?

Trifluoromethane 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 Trifluoromethane?

Trifluoromethane is usually classified under HS code 290341 (Trifluoromethane (HFC-23)). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Trifluoromethane?

CompoundList lists 33 suppliers of Trifluoromethane in China, United States, India, Japan and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Trifluoromethane in India?

3 suppliers in India list Trifluoromethane on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Trifluoromethane?

Suppliers quote Trifluoromethane on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

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

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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