Description

HCFC-251 (CAS NO 421-41-0) is a hydrochlorofluorocarbon compound primarily utilized as a specialized intermediate and refrigerant component. Its value lies in its controlled chemical reactivity and specific physical properties, making it a critical material in advanced manufacturing processes. This product is essential for industries such as refrigeration, air conditioning, and fine chemical synthesis, where precise fluorocarbon chemistry is required.

Application

• Refrigerant and Foam Blowing Agent Intermediate: Serves as a key precursor in the formulation of refrigerant blends and insulating foam expansion agents.
• Specialty Chemical Synthesis: Used as a building block or intermediate in the production of more complex fluorinated organic compounds.
• Fire Suppression Systems: A component in certain halon-alternative fire extinguishing formulations.
• Solvent and Cleaning Agent Applications: Employed in precision cleaning and degreasing operations for sensitive electronic and metal components.
• Polymer and Plastic Manufacturing: Acts as a monomer or modifier in the synthesis of specific fluoropolymers.
• Laboratory and R&D: Used as a reagent or standard in chemical research and analytical method development.

Basic Information

Product Name	HCFC-251
CAS No.	421-41-0
Molecular Formula	C2H4ClF
Molecular Weight	82.50 g/mol
Synonyms	1-Chloro-1-fluoroethane; Ethane, 1-chloro-1-fluoro-; Freon 251; R-251; HCFC 251; 1-Fluoro-1-chloroethane; Chlorofluoroethane; F 251
EINECS	207-000-7

Quality Control

Our HCFC-251 is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical tests including gas chromatography (GC) and infrared spectroscopy (IR). A Certificate of Analysis (COA) detailing purity, identity, and key physical properties 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 nature, ensure containers are kept upright and sealed when not in use. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Colorless gas / liquefied gas
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Water Content	≤ 0.01%
Acidity (as HCl)	≤ 0.0001%
Non-volatile Residue	≤ 0.001%

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