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:What is the difference between organic matter and inorganic matter?
Organic compounds in addition to a few, can generally burn. Compared with inorganic matter, their thermal stability is relatively poor, the electrolyte is easy to heat decomposition. The melting point of organic matter is low, generally not more than 400 ℃. The polarity of organic matter is very weak, so most of the water is not soluble. The reaction between organic matter, mostly intermolecular reactions, often requires a certain activation energy, so the reaction is slow, often requiring catalyst and other means. And the reaction of organic matter is more complex, under the same conditions, a compound can often be several different reactions at the same time, generate different products.
Q:Why does the hydrocarbon derivative make the bromine water fade and the hydrocarbon can not
As long as carbon and carbon double bonds and three hydrocarbons can be hydrocarbons
Q:What are the derivatives of hydrocarbons?
In addition to the C and H elements, there are also one or more of O, X (halogen), N, S and other elements, such as methanol (CH3OH) learned from junior high school chemistry, (CH3Cl), nitrobenzene (C6H5NO2), and the like, which are mentioned in the previous chapter, are derivatives of hydrocarbons, such as ethanol (C2H5OH), acetic acid (CH3COOH)
Q:What is the isomeric structure of oxygen-containing derivatives?
Play the Transformers. As long as the same molecular formula, you can group out how many different structures, there are a number of isomers.
Q:The functional group of the derivative of the hydrocarbon
Common functional groups are: carbon-carbon double bond, -OH-COOH-CHO-NH2, often react, replace (including halogenation, nitration, sulfonation, esterification, hydrolysis, etc.), addition, elimination, addition polymerization , Organic matter oxidation and reduction, color and so on.
Q:Is the heterocyclic compound not a derivative of cyclic hydrocarbons? why?
The heterocyclic compound is an organic compound containing a heterocyclic structure in its molecule. The atoms that make up the ring contain at least one heteroatom in addition to carbon atoms. The heteroatoms include oxygen, sulfur, nitrogen and the like. Theoretically, the heterocyclic compound can be regarded as a derivative of benzene, that is, one or more CH in the benzene ring is replaced by a heteroatom. The heterocyclic compound may be in parallel with the benzene ring to form a fused ring heterocyclic compound.
Q:Hydrocarbons and hydrocarbon derivatives are not all non-electrolytes
Hydrocarbons are, derivatives are not necessarily, such as organic acids (formic acid, acetic acid, etc.)
Q:What is "organic" and "inorganic" in chemistry?
Inorganic compounds are inorganic compounds, usually refers to non-carbon compounds. , Alkali, salt and so on.
Q:What are the gaseous states of the oxygen-containing derivatives of the hydrocarbons under the standard conditions?
Nitrogen derivatives are; dimethylamine;
Q:What is a derivative of a hydrocarbon? What is an aromatic hydrocarbon derivative?
Hydrocarbon derivatives include derivatives of linear and aromatic hydrocarbons such as chloroethane bromopropane bromobenzene

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