Refrigerant Gas R502

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Shanghai
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TT OR LC
Min Order Qty:
-
Supply Capability:
1000MT m.t./month

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Specifications

1.Easy to evaporate
2.OEM is welcomed
3.Delivery within15 days
4.Disposable cylinder 30lb/13.6kg, 50lbs/22.7kg

Refrigerant R502 is a low temperature refrigerant which has a height refrigerating ability. It is mainly used as refrigerant for cooling showcase, refrigerant machines, low temperature refrigerators, low temperature compressors. It has higher refrigerating capacity and fast refrigerating rate.

Property of chloride

Formula:     Azeotrope of F-22 and F-115

Ratio (w/w):    F-22(48.8%), F-115(51.2%)

Molecular Weight:           111.6

B.P., °C:                    -45.4

Critical Temperature, °C:       82.2

Critical Pressure MPa:         4.075

Critical Density, g/cm3:        1.192

ODP(CFC-11=1):            0.221

QWP(CO2=1):              4500

Quality Standard

Appearance:       Colorless, Transparent

Odor:                     Odorless

Moisture, ≤ %:              0.002

Acidity, ≤ %:               0.0001

Residue on evaporation, ≤ %:  0.01


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Q:What is organic matter? Candle is organic?
Candle chemical formula: C2H2 so candle is organic
Q:What is the difference between organic matter and inorganic matter?
Organic matter that organic compounds. Carbon compounds (carbon monoxide, carbon dioxide, carbonates, metal carbides and other rare carbon compounds excluded) or hydrocarbons and their derivatives in general. Organic matter is the material basis for life.
Q:Organic organic compounds are organic matter?
Organic matter is defined as the presence of hydrocarbons and their derivatives, and the presence of covalent bonds is a feature of them.
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:Why is the chemical name in the uncommon word so much?
China's chemical name may be the best of both Latin and English
Q:What is the difference between crude oil and asphalt?
Asphalt is the residue of crude oil
Q:Inorganic chemistry employment direction? Current research direction
Inorganic chemistry is the science of the composition, nature, structure and reaction of inorganic matter, which is the oldest branch of chemistry. Inorganic substances include all chemical elements and their compounds, except for most of the carbon compounds. (In addition to carbon dioxide, carbon monoxide, carbon disulfide, carbonates and other simple carbon compounds are still inorganic substances, the rest are organic matter.)
Q:Identification of Derivatives of Chemical Hydrocarbons in High School
Meaning that the halogenated hydrocarbon can be hydrolyzed and eliminated; the alcohol reacts with sodium to produce oxidation and eliminate the reaction; the phenol has acidity, can replace the reaction and color reaction; aldehyde can be added reaction and oxidation reaction. Finally remember the acid and acid, and alcohol esterification reaction.
Q:What is the relationship between hydrocarbon and hydrocarbon derivatives?
The hydrocarbon is the parent of the organic compound, and the other various organic compounds can be regarded as derivatives of one or more hydrogen atoms in the hydrocarbon molecule being replaced by atoms or radicals of other elements.
Q:Why does the hydrocarbon derivative make the bromine water fade and the hydrocarbon can not
Should be able to ah and bromine water addition reaction and fade:

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