Refrigerant R142b Gas

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142b refrigerant

it is used for temperature control of the media and aviation propellant intermediates. Also used as chemical raw materials.

Property of chloride:

Formula: CH3CCLF2

Molecular weight: 100.5

B. P., °C: -9.8

Critical temperature,,°C: 136.45

Critical pressure, MPa: 4.15

Critical density, g/cm3: 0.495

Liquid density, g/cm3 30°C: 1.096

Vapor pressure(absolute pressure),21.1°C MPa: 0.3

ODP: 0.0133

Quality standard:

Appearance: Colorless, no turbid

Odor: Odorless

Purity, ≥%: 99.9

Water, ≤%: 0.001

Acidity, ≤%: 0.0001

Residue on evaporation, ≤%: 0.01

Q:What is the current status of carbon dioxide capture technology and how is it compared to plants that absorb carbon dioxide?: I think it 's harder if the thing is to be industrialized. = Such as carbon dioxide hydrogenation into methane, after the methane transport or storage is also a relatively large problem bars And not to say that the hydrogenation of carbon dioxide into methane has been studied for a long time, but it does not seem to have developed any big news like ah There is also electrochemical reduction of carbon dioxide. It is relatively easy to produce formic acid in the aqueous phase, such as the Partially oxidized atomic cobalt oxide for carbon dioxide electroreduction to liquid fuel (Nature: Nature Publishing Group) recently made by Xie Yi. The But the separation of formic acid and water is also a more difficult thing ah. The

Q:What is organic matter?: Organic compounds (organic compounds) mainly by the oxygen elements, hydrogen, carbon elements. Organic matter is the material basis for life. Fat, amino acids, protein, sugar, heme, chlorophyll, enzymes, hormones and so on. Biological metabolism and biological genetic phenomena, are related to the transformation of organic compounds. In addition, many substances closely related to human life, such as oil, natural gas, cotton, dyes, chemical fiber, natural and synthetic drugs, are organic compounds.

Q:China's largest asphalt production base where: Asphalt material is divided into asphalt and tar asphalt two categories. Asphalt is divided into natural asphalt and petroleum asphalt, natural asphalt is the oil exudation surface after long-term exposure and evaporation of the residue; oil asphalt is refined processing of residual oil residue, the appropriate process to deal with the product The Tar asphalt is coal, wood and other organic dry distillation processing of the tar after re-processing products. Most of the asphalt used in the project is petroleum asphalt, and petroleum asphalt is a mixture of complex hydrocarbons and their nonmetallic derivatives. Usually the asphalt flash point between 240 ℃ ~ 330 ℃, the ignition point than the flash point of about 3 ℃ ~ 6 ℃, so the construction temperature should be controlled below the flash point.

Q:What is organic matter? Candle is organic?: Candle chemical formula: C2H2 so candle is organic

Q:Other corals are because the color of the corals show colorful, why only the red coral is the exception of it? did not find the reasons for the big god to explain: Organic compounds, the general purpose of carbon compounds (carbon monoxide, carbon dioxide, carbonic acid, carbonate, metal carbide, cyanide excluded) or hydrocarbons and their derivatives.

Q:What is the meaning of organic ah, organic food on the human body what practical benefits: Food point of view of organic: from planting to harvest, and then to storage, transport so that consumers in the hands, without chemical fertilizers, chemical processing, genetic technology and other food raw materials. In general, organic represents high quality and natural. But the Chinese market is not very close, so the choice of time to pay attention.

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 is the difference between organic matter and inorganic matter?: Inorganic matter is an inorganic compound. Generally refers to the elements other than carbon elements, such as water, salt, sulfuric acid, lime and so on. However, some simple carbon compounds such as carbon monoxide, carbon dioxide, carbonates, carbonates and carbides, because of their composition and properties and inorganic similar, so also as an inorganic to study. The vast majority of inorganic matter can be classified as oxides, acids, alkalis and salts.

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:Chemical life network: chemical (inorganic reaction, organic reaction) is equal to the life of life reaction?: Research on the origin, preparation, structure, nature, change and application of elements, elements and inorganic compounds.For the comprehensive utilization of mineral resources, the production and research of inorganic raw materials and functional materials in modern technology are of great significance At present, inorganic chemistry is in the new period of vigorous development, and many edge areas are rapidly rising and the scope of research has been expanded. Inorganic synthesis, high - element chemistry, coordination chemistry, organometallic chemistry, inorganic solid chemistry, bio - inorganic chemistry and isotope Chemical and other fields.

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