R32
Update Time:2015-12-11
  

R32

R32is a colorless gas under ordinary temperature and a colorless & transparentliquid under the pressure of itself. It is mainly used as refrigerant which isthe vital part to substitute R22. R32 is also an important component ofblend refrigerant R407C and R410a. .

Properties

Index

Unit

R32

Chemical formula

 

CH2F2

Molecular weight

g/mol

52.02

Freezing point

-136

Boiling point

-51.7

Specific gravity (25 liquid)

g/cm3

0.958

Vapor pressure (25)

MPa

1.689

Critical temperature

78.10

Critical pressure

MPa

5.808

Critical density

g/cm3

0.424

Water solubility (25)

W%

0.44

ODP

 

0

GWP

 

0.11

 

QualitySpecification

Index

Excellent Grade

Appearance

Colorless , not turbid

Odor

No strange stench

Purity % ≥

99.8

Moisture % ≤

0.001

Acidity (as HCl) % ≤

0.00001

Evaporation residue % ≤

0.01

Chlorides (Cl-) test % ≤

0.0003

No condensable gas (V/V) % ≤

1.5

 

Packing 670KG/800L,780KG/926Lsteel cylinders, orISO TANK.

PSHS Code 29034200.00

 

 

性状用途:

在常温下为无色气体,在自身压力下为无色透明液体,用作制冷剂,是替代R22的重要组分,是混合制冷剂R407C、R410a的主要组成部分之一。

 

物理性质 :

 

单位

HFC-32

分子式

 

CH2F2

分子量

g/mol

52.02

冰点

-136

沸点

-51.7

液体密度(25℃)

克/厘米3

0.958

蒸气压 (25℃)

MPa

1.689

临界温度

78.10

临界压力

MPa

5.808

临界密度

克/厘米3

0.424

在水中溶解度 (25℃)

W%

0.44

ODP

 

0

GWP

 

0.11

 

质量指标 :

指标名称

优等品

外观

无色、不浑浊

气味

无异臭

纯度 ( % ≥)

99.8

水份( % ≤)

0.001

酸度 ( 以HCl计 ) ,( % ≤)

0.00001

蒸发残留物 ( % ≤)

0.01

氯化物(Cl-) ( % ≤)

0.0003

不凝性气体的体积分数 ( % ≤)

1.5

  
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