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HFC-152a WanJie International Co., Ltd, a China-based trader and manufacturer
Heptafluoropropane | Ethylene dibromide | Heptafluoropropane | Acetamiprid | Thiamethoxam
HFC-152a WanJie International Co., Ltd, a China-based trader and manufacturer
HFC-152a
3

Identification

Synonyms: 1,1-Difluoroethane (IUPAC); Ethylidene Difluoride; Freon 152a; R-152a; Fluorocarbon 152a; HFC152a
CAS No.: 75-37-6   EC No.: 200-866-1   RTECS No.: KI1410000
Molecular Weight:  66.05
Molecular Formula: C2H4F2
Structural Formula:
m.p.: -117°C
b.p. (1 atm): -24.7°C
Vapor Pressure: 0.599Mpa
Critical T.: 113.5°C
Critical P.: 45.0 mPa
Critical Density: 0.365g/cm3
ODP: 0
GWP: 120 (CO2=1)
Chemical and Physical properties: HFC-152 is a colorless, odorless compressed gas, stable under normal condition
(Note: 1,2-difluoroethane: HFC-152)

Preparation

HFC-152a (Difluoroethane) can be made by the following reaction under mercury-based catalyst: HC≡CH + 2HF → CH3CHF2

Application

1) HFC-152a (Difluoroethane) is used as electronic cleaning solvent
2) Used as consumer aerosol propellant, especially those subject to stringent VOC requirements, alternative for CFC-12
3) Used as a component of azeotopic blend refrigerant such as R-401a (with 13% HFC-152a), R-401b (with 11% HFC-152a), R-401C (with 15% HFC-152a) and R-411a (with 11% HFC-152a) and R-411b (with 3% HFC-152a)

Specification

 Items
Specification
 
First
Second
Third
HFC-152a (Difluoroethane)purity, %
99.9 min
99.8 min
99.5 min
moisture, mg/kg
10 max
10 max
20 max
acidity, ppm
0.1 max
0.1 max
1.0max
nonvolatile residues, mg/kg
100 max
100 max
100 max
noncondensable gas in vapor phase, %
1.5
1.5
1.5

Standard Packaging

740kgs/cylinder,  9.62mt/20' FCL
Filling ratio 0.79

Risks and Safety Information

HFC-152a (Difluoroethane) is regulated by the UN as hazardous substance
Flammable gas
UN1030
Class 2.1
PG: unknown
R-Phrase: R12
S-Phrase: S7, S16, S33, S43
For more information, please see MSDS
Add Time : [2011-12-12]back
Thiacloprid
Phosphorous acid
Polyphosphoric acid
Monopotassium phosphite
Dichlorotrifluoroethane


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agostinovern 14.01.2012 0 203
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