PRODUCTION : HCFC-142b (CClF2CH3)

CAS#         : 75-68-3

1.       Physical Property

Appearance and character: Colorless volatile liquid, with a slight sweet smell.

Molecular weight	100.5	Relatively vapor density air=1	3.49
Melting point,°C	-131	PH	7.0
Boiling point,°C	-9.8	Upper Explosion limit,%(V/V)	14
Critical Pressure, Mpa	4.15	Lower Explosion limit,%(V/V)	8.5
Critical Temperature,°C	136.45	logarithm of distribution coefficient	1.6
Critical Density, kg/cm3	495	solubility in water(21°C)W/W	0.14
25°C Saturated Vapor Pressure, Kpa	350	Ignition temperature,°C	633
Relatively density water=1	1.1

2. Quality Specification

Grade	excellent	first-class
Purity (m/m %) ≥	99.80	99.95
Moisture,≤	0.001	0.001
Acidity,≤	0.00001	0.00001
Non-volatile residue)%,≤	0.01	0.01