Q
R134a
A
  

R134a

R134ais internationally recognized as one of the main refrigerant working substancesto substitute CFC-12. It does not contain chlorine atom, gives no bad effectsagainst ozonosphere and has excellent safety performances, such asnon-toxicity, non-inflammability, non-explosive ability , non-pungency, andnon-corrosive ability. It is a colorless gas under ordinary temperature and acolorless & transparent liquid under the pressure of itself. As thesubstitute for CFC-12, it is often used in the refrigerating systems of autoair conditioners, commercial and industrial purposes, and as the vesicant, itis used to produce the heat-protective material made of rigid plastics, andalso to prepare other blend refrigerants, such as R404A & R407C.

Properties

Index

Unit

(R134a)

Chemical formula

 

CH2FCF3

Molecular weight

g/mol

102.0

Boiling point 101.3KPa ()

-26.2

Freezing point 101.3KPa ()

-96.6

Critical temperature

101.1

Critical pressure

KPa

4066.6

Saturated liquid density (25)

Kg/m3

1188.1

Specific heat (25liquid)

KJ/kg.k

1.42

Critical density

g/cm3

0.512

Vaporization heat at boiling point

KJ/kg

215.0

Water solubility (25)

W%

0.15

ODP

 

0

GWP

 

0.29

 

QualitySpecification

Index

Excellent Grade

Grade I

Appearance

Colorless &transparent liquid

 

Purity % ≥

99.9

99.5

Moisture % ≤

0.001

0.005

Acidity (as HCl) % ≤

0.0001

0.0001

Evaporation residue % ≤

0.01

0.01

Chlorides(Cl-) test % ≤

0.0003

 

No condensable gas (V/V) % ≤

1.0

 

 

Packing13.6kg, 800kg/L,950kg/926L steel cylinders.

PSHS Code 29033090.90.

 

性状用途:

HFC-134a是目前国际公认的CFC-12 的主要制冷工质之一,HFC-134a不含氯原子,对大气臭氧层不起破坏作用;具有良好的安全性能(不易燃,不爆炸,无毒,无刺激性,无腐蚀性);在常温下为无色气体,在自身压力下为无色透明液体,是R12 的替代品。常用于汽车空调,商业和工业用制冷系统,以及作为发泡剂用于硬塑料保温材料生产,也可以用来配置其他混合制冷剂,如R404a和R407c等。

 

物理性质 :

 

单位

HFC-134a

分子式

 

CH2 FCF3

分子量

g/mol

102.0

沸点 101.3kpa (℃)

-26.2

冰点 101.3kpa (℃)

-96.6

临界温度

101.1

临界压力

KPa

4066.6

饱和液体密度(25℃)

Kg/m3

1188.1

比热 (液体25℃)

千焦耳/千克度

1.42

临界密度

克/厘米3

0.512

沸点时蒸发潜热

千焦耳/千克

215.0

在水中溶解度 (25℃)

W%

0.15

ODP

 

0

GWP

 

0.29

 

质量指标 :

指标名称

优等品

外观

透明,无色液化气体

纯度 ( % ≥)

99.9

水份( % ≤)

0.001

酸度 ( 以HCl计 ) ,( % ≤)

0.0001

蒸发残留物 ( % ≤)

0.01

氯化物(Cl-) ( % ≤)

0.0003

不凝性气体的体积分数 ( % ≤)

1.0

  

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