Blend R502 Replacement

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Product Description:


1.Refrigerant Gas R404A of all specifications
2.OEM is accepted
3.Purity 99.9%

R404A is a "near azeotropic" HFC blend, especially developed for commercial, industrial and transport refrigeration. A widely accepted HFC refrigerant alternative to the CFC R502

Refrigerant Gas R404A

Property of chloride :
Molecular Weight97.6
Boiling Point, °C-46.5
Critical Temperature, °C72.1
Critical Pressure, Mpa3.74
Specific Heat of Liquid, 30°C, [KJ/(kg°C)]0.38
Packing:Disposable cylinder 24lb/10.9kg; Recyclable cylinder 400L, 800L, 926L; ISO-Tank.
Application:  22 replacement refrigerants


Netural; OEM                        

Quality standard :
Purity, %>99.9%
Moisture, PPm≤10
Acidity, PPm≤1
Vapor Residue, PPm≤100
AppearanceColorless, No turbid
OdorNo Strange Stench

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Q:1. What are liquid hydrocarbons?
Pentane, g, x, n, decane, to eleven to hexadecane are liquid hydrocarbons. Ethanol is not a hydrocarbon, it is aerobic. Polymeric material is a compound of relatively high molecular weight Composition of the material, there are many, such as rubber, plastic, fiber, paint
Q:What is the difference between an aromatic compound and a hydrocarbon derivative?
The aromatic compound is a benzene ring containing compound, which may be a hydrocarbon or a hydrocarbon derivative. Hydrocarbons are hydrocarbon-containing compounds, and hydrocarbons containing hydrocarbons other than hydrocarbons are derivatives of hydrocarbons. The two concepts have crossed.
Q:What is the difference between hot and cold asphalt?
According to the time analysis, municipal companies should use the cold asphalt cold material, is the winter road maintenance of commonly used materials. In the long winter, the asphalt pavement works because of the temperature (less than 5 degrees is strictly prohibited construction), is very little construction, even if the construction, the quality is higher than the temperature when the construction is worse (asphalt mixture cold fast, easily lead to compaction The lack of pressure on the pressure, and prone to cohesive, poor water quality problems such as water), because no demand or demand is small, this time the major asphalt mixing field have a holiday home to the New Year. But the road will be the same as the winter disease, pit and other small diseases are not treated in time, easy to evolve into a large disease, there may be dangerous roadbed, running up the driver also curse, out of the accident maintenance department also bear responsibility, so the winter road Also need to maintain. At this time asphalt cold feed came into being, asphalt cold feed is used aggregate (graded gravel) plus dehydration asphalt plus diesel and additives mixed with the construction of the temperature requirements, the pits filled with pavement , Such as diesel fuel has finished bitter gluing together, but the construction quality is not good, no hot mix asphalt dense. So the winter is approaching, the road maintenance department will need to mix a few tons of asphalt cold feed sealed (to participate in 25kg rice), there are pits to pull a few bags to fill, and so on these problems when the pit and digging with the heat Mixed with asphalt material repair. In summary, the asphalt cold feed is a special winter pavement pit repair using the material, the construction process and hot mix asphalt material is roughly the same, but the construction quality is relatively poor, is a special time emergency measures, very useful materials.
Q:Are there two derivatives of equivalent hydrogen?
You give the scope is too broad, at least to set in what kind of functional group range ah.
Q:Is it possible to understand that organic matter is contained in the heat of inorganic matter?
The fundamental difference between organic matter and inorganic matter is whether it contains carbon elements (except carbon monoxide, carbon dioxide, carbonates, metal carbides and other simple carbon compounds). Is the carbon-based life (that is, we) the division of life material and non-life material academic concept. Regardless of whether or not to store heat. The ability of many inorganic materials to store heat is much higher than that of organic matter. From a broad cosmic perspective. Organic and inorganic division does not make sense, assuming that there is a silicon-based life (this possibility is very high). Then their organic and inorganic division should lie in whether it contains silicon.
Q:Does Organic Chemistry Study the Performance of Hydrocarbons and Their Derivatives?
Also study the structure and transformation
Q:Peracetic acid is not
A series of compounds produced by the substitution of hydrogen atoms in other molecular or atomic groups as hydrocarbon derivatives, peroxyacetic acid is CH3COOOH, and should be considered
Q:Is the number of hydrogen atoms in the hydrocarbon or hydrocarbon derivative molecule be even
The number of hydrogen atoms in the hydrocarbons containing carbon, oxygen and oxygen is also even.
Q:What is organic compounds?
2. Previously, the known organic matter is obtained from animals and plants and other organisms, so this kind of compound is called organic matter. To the 1820s, scientists have used inorganic synthesis of many organic compounds, such as urea, acetic acid, fat, etc., to break the organic matter can only be obtained from the organic concept. However, due to historical and customary reasons, people still use the name of organic matter.
Q:What is the aromatic hydrocarbon
Aromatic hydrocarbons referred to as "aromatic hydrocarbons", refers to the molecule containing benzene ring structure of the hydrocarbons. Is a closed chain.

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