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产品名称：制冷剂R404A

化学成份：五氟乙烷（44%）/三氟乙烷（52%）/四氟乙烷（4%）

分子式：CHF2CF3/CH3CF3/CF3CH2F

CAS登录号：354-33-6/420-46-2/811-97-2

理 化 特 性：

外观与性状：在常温下为无色气体，在自身压力下为无色透明液体，有淡的醚味。

饱和蒸汽压（Kpa）：（25℃）：1270；（50℃）：2330；（70℃）：3530

临界温度（℃）：72.4                   

临界压力（KPa）：3688.7       

沸点（℃）：-46.1

相对蒸汽密度（空气=1）： 5.39kg/m3/沸点时  

相对密度（水=1）：  无数据     

液体密度g/cm3，25℃：1.045     

破坏臭氧潜能值（ODP）：0

燃爆危险：本品不燃。

产品用途：

R404A作为当今广泛使用的中低温制冷剂，常应用于冷库、食品冷冻设备、船用制冷设备、工业低温制冷、商业低温制冷、交通运输制冷设备（冷藏车等）、冷冻冷凝机组、超市陈列展示柜等制冷设备。

制冷剂R404A是新装制冷设备上替代氟利昂R22和R502的最普遍的工业标准制冷剂（通常为低温冷冻系统），R404A最接近于R-502的运作，它适用于所有R-502可正常运作的环境，R404A得到全球绝大多数的制冷设备制造商的认可和使用。但是由于R404A与R502和R22物化性能、理论循环性能以及压缩机用油等均不相同，因此对于初装为R502和R22制冷剂的制冷设备的售后维修，如果需要再添加或更换制冷剂，仍然只能添加R502和R22，通常不能直接以R404A来替代R502、R22（也就是说通常不可以进行换血式的替换）。

包装规格：

一次性钢瓶：9.5kg/瓶，10.9kg/瓶； 可循环使用钢瓶： 926L；槽车。

储存运输：

R404A钢瓶为带压容器，储存时应远离火种、热源、避免阳光直接曝晒，通常储放于阴凉、干燥和通风的仓库内;搬运时应轻装、轻卸，防止钢瓶以及阀门等附件破损。

Product Name:Refrigerant R404A

Chemical Composition: Pentafluoroethane (44%) / Trifluoroethane (52%) / Tetrafluoroethane (4%)

Molecular Formula: CHF2CF3/CH3CF3/CF3CH2F

CAS No.: 354-33-6/420-46-2/811-97-2

Physical and Chemical Properties 

Appearance and Characteristics: Colorless gas at normal temperature; colorless transparent liquid under self-pressure with a slight ether odor.

Saturated Vapor Pressure (kPa):25℃: 1270,50℃: 2330,70℃: 3530

Critical Temperature (℃): 72.4

Critical Pressure (kPa): 3688.7

Boiling Point (℃): -46.1

Relative Vapor Density (air=1): 5.39 kg/m³ (at boiling point)

Relative Density (water=1): No data

Liquid Density (25℃): 1.045 g/cm³

Ozone Depletion Potential (ODP): 0

Fire and Explosion Hazard: Non-flammable.

Product Application

As a widely used medium and low-temperature refrigerant, R404A is commonly applied in cold storage, food refrigeration equipment, marine refrigeration units, industrial low-temperature refrigeration, commercial low-temperature refrigeration, transportation refrigeration equipment (refrigerated trucks, etc.), refrigeration condensing units, supermarket display cabinets and other refrigeration facilities.

R404A is the mainstream industrial standard refrigerant to replace R22 and R502 in newly installed refrigeration equipment, especially for low-temperature freezing systems. Its operating performance is highly similar to R502, and it is applicable to all working conditions suitable for R502. It is recognized and adopted by most refrigeration equipment manufacturers worldwide.

However, R404A differs from R502 and R22 in physical and chemical properties, theoretical cycle performance and compressor lubricating oil requirements. For the maintenance of original equipment charged with R502 or R22, only the original refrigerant shall be refilled or replaced. Direct replacement with R404A is not allowed, and overall refrigerant substitution is inapplicable.

Packaging Specifications 

Disposable steel cylinder: 9.5kg/cylinder, 10.9kg/cylinder;

Recyclable steel cylinder: 926L;

Tank truck.

Storage and Transportation

R404A cylinders are pressure vessels. Store away from fire and heat sources, avoid direct sunlight, and keep in a cool, dry and well-ventilated warehouse. Handle with care during loading and unloading to prevent damage to cylinders, valves and other accessories.