R152A

R152A（CAS 25497-28-3）：分子式 C2H4F2、分子量 66.05。

产品概览

应用领域

登记用途：Uses: CIR ingredient: Hydrofluorocarbon 152a、Used as a chemical intermediate、refrigerant、and propellant、[HSDB]、1、1-Difluoroethane is employed for aerosol pesticide formulations used for insect control in food and feed-handling establishments and animals. The predominant use of this chemical is in consumer products、including use as an aerosol propellant in food and non-food commodities、as refrigerant、and in the synthesis of 1-chloro-1、1-difluoroethane、Intermediate.、Intermediate to vinyl fluoride.、HFC 152a is a specialty liquified hydrofluorocarbon gas. It is used as an intermediate in the production of fluorinated polymers、as an aerosol propellant in some specialty applications、and as a component in some refrigerant blends.、Approximately 80% of HFC-152a is used as an aerosol propellant and approximately 15% is used as a foam expansion agent. The remaining 5% of the HFC-152a is for other potential uses、which include refrigeration blends and catalyst regeneration.、Use Classification: Cosmetics -> Propellant、Industry Uses: Foamant、Energy Releasers (explosives、motive propellant)、Refrigerants、Not Known or Reasonably Ascertainable、Dusting agent、Propellants、non-motive (blowing agents)、Intermediate、Consumer Uses: Dusting agent、Cleaning agent、Foamant、Household Products: Information on 378 consumer products that contain 1、1-Difluoroethane (Hydrofluorocarbon 152A) in the following categories is provided:、• Auto Products、• Commercial、Institutional、• Hobby、Craft、• Home Maintenance、• Inside the Home、• Personal Care、• Pesticides、Methods of Manufacturing: Mono- and difluoroalkanes can be produced by addition of hydrogen fluoride to olefins or alkynes (e.g.、CF2H-CH3、HFC 152a). Another synthetic pathway is the exchange of chlorine (or bromine) for fluorine using hydrogen fluoride or metal fluorides、such as antimony fluoride.、By adding hydrogen fluoride to acetylene.、... gas-phase fluorination of acetylene using a magnesium and bismuth catalyst coadsorbed on aluminum fluoride (Mg、Bi、AlF3). This method proceeds via the intermediate product、vinyl fluoride.、... a nonselective reaction、which produced 57.9% of HFC-152a at 67% conversion、when 1、2-dichloroethane was fluorinated in the liquid phase using a Lewis acid catalyst such as SnCl4.、Perhaps the most promising industrial route for the manufacture of HFC-152a is based on the fluorination of the vinyl chloride monomer. The two-step process involves initial addition of HF in a liquid-phase process to form the intermediate HCFC-151a (CH3CHClF). This is followed by a second liquid-phase fluorination of HCFC-151a to HFC-152a.、Impurities: Typical impurities in HFC-152a include low level (ppm) water、low level (ppb) residual HCl and、or HF acids.、Formulations、Preparations: Technical、98%、The concentration of 1、1-difluoroethane as a propellant in pesticide formulations ranges from 14% to 78% by weight in the pesticide formulation.、AF 152a、Algofrene Type 67、For more Formulations、Preparations (Complete) data for 1、1-Difluoroethane (13 total)、please visit the HSDB record page.、Consumption Patterns: Refrigerants、39%、foam blowing agents、17%、solvents、14%、fluoropolymers、sterilant gas、2%、aerosol propellants、food freezant、1%、other、8%、exports、3% (1985)、Fluorocarbons、U.S. Production: 2023: 50、000、000 - <100、000 lb、2022: 50、2021: 50、2020: 50、Production is currently limited to a few thousand tons per year.、Non-confidential 2012 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: Ethane、1-difluoro-. National Production Volume: 50、000 - 100、yr.、Plastics Product Manufacturing、Soap、Cleaning Compound、and Toilet Preparation Manufacturing、Other (requires additional information)、All Other Basic Organic Chemical Manufacturing、All Other Chemical Product and Preparation Manufacturing、Ethane、1-difluoro-: ACTIVE、The direct fluorination of hydrocarbon with elemental fluoride is extremely exothermic and difficult to control. ... The disadvantages of direct fluorination have been overcome by the use of fluorine carriers、in particular、high valence metal fluorides such as cobalt trifluoride、CoF3、or potassium tetrafluorocobalate、KCoF4.。

技术档案

这个产品是什么

R152A 是一种化工化合物，登记 CAS 号为 25497-28-3，分子式 C2H4F2（分子量 66.05）。

识别信息

登记 CAS 号：25497-28-3

其分子式 C2H4F2 由 2 个碳、4 个氢、2 个氟 组成。

别名/同义词：R152A

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PubChem 公开数据