Description

Dichloromonofluoromethane CAS NO 75-43-4 is a versatile fluorocarbon compound, also known as R-21, widely recognized for its role as a refrigerant and chemical intermediate. Its value lies in its unique combination of properties, including high volatility and a gaseous state, which make it suitable for specialized industrial processes. This product is essential for manufacturers in the refrigeration, polymer, and pharmaceutical sectors seeking reliable and effective fluorinated building blocks.

Application

• Refrigerant and Heat Transfer Fluid: Used as a component in specialized refrigeration and air-conditioning systems.
• Chemical Synthesis Intermediate: Serves as a key precursor in the production of fluoropolymers and other fluorinated chemicals.
• Blowing Agent: Employed in the manufacture of foams and insulating materials.
• Solvent and Cleaning Agent: Utilized in precision cleaning applications for electronic components and metal parts.
• Propellant: Acts as a propellant in aerosol formulations for industrial and technical products.
• Fire Extinguishing Agent: Used in certain types of fire suppression systems.
• Laboratory Reagent: Applied in research and development for chemical reactions requiring a fluorinated methane derivative.

Basic Information

Product Name	Dichloromonofluoromethane
CAS No.	75-43-4
Molecular Formula	CHCl2F
Molecular Weight	102.92 g/mol
Synonyms	Freon 21; R-21; HCFC-21; Fluorodichloromethane; Dichlorofluoromethane; Monochlorodifluoromethane (common misnomer); Genetron 21; Algofrene 21
EINECS	200-869-8

Quality Control

Our Dichloromonofluoromethane is produced under stringent quality management systems to ensure batch-to-batch consistency and reliability. Quality is verified through comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and gaseous nature under standard conditions, containers must be kept upright and securely sealed. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	Colorless gas
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
Water Content	≤ 50 ppm
Acidity (as HCl)	≤ 1 ppm
Non-volatile Residue	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.