295213

Dichlorofluoromethane

98%

• Synonym(s): Freon^® 21
• Linear Formula: FCHCl₂
• CAS Number: 75-43-4
• Molecular Weight: 102.92
• EC Number: 200-869-8
• MDL number: MFCD00000825
• UNSPSC Code: 12142100
• PubChem Substance ID: 24857765
• NACRES: NA.22

Properties

• vapor density: 3.57 (vs air)
• vapor pressure: 1,193 mmHg ( 21 °C)
• Assay: 98%
• autoignition temp.: 1022 °F
• bp: 8.9 °C (lit.)
• mp: −135 °C (lit.)
• SMILES string: FC(Cl)Cl
• InChI: 1S/CHCl2F/c2-1(3)4/h1H
• InChI key: UMNKXPULIDJLSU-UHFFFAOYSA-N

Description

Packaging

Supplied in a Sure/Pac^™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Freon is a registered trademark of E. I. du Pont de Nemours and Company

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Pictograms: GHS04,GHS07
• Signal Word: Warning
• Hazard Statements: H280,H420
• Precautionary Statements: P410 + P403 - P502
• Hazard Classifications: Ozone 1 - Press. Gas Liquefied gas
• Storage Class Code: 2A - Gases
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves