Refrigerant R227ea Gas

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Shanghai
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TT OR LC
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Supply Capability:
1000MT m.t./month

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Specifications

1.Nonflammable
2.Easy to evaporate
3.OEM is welcomed
4.Delivery within15 days
5.Friendly to the environment

Under normal temperature and pressure, Heptafluoropropane(HFC227EA) is a kind of colorless gas, and is a compressed liquefied gas to be stored in culinders. Heptafluoropropane(HFC227EA) extinguishant is an ideral substitute of Halon 1301, and is clean, low poisonous, and has a good fire-protecting effect. It is mainly used in total-flood extinguishing system.

Physical Properties

Formula                                                           CF3CHFCF3

Molecular weight                                                    170

B.P. °C                                                           -16.4

Vapor Pressure(20°C),Mpa                                           0.391

Liquid Denisty,(20°C) , kg/m3                                         14

Saturated capor density, (20°C) , kg/m3                                                  31.176

Fire-extinguishing concentrations in cup burner, % (V/V)                    5.8

Least designing concentration, % (V/V)                                 7

NOAEL                                                          9.0

ODP                                                              0

Quailty standad

Purity,≥%:                   99.6

Water, mg/kg ≤                10

Acidity (as HF), mg/kg ≤         1

Residue on evaporation, % (m/m)  0.01

Suspending substance or deposition  invisible

Packing

Filled in cylinders, each 1000kg net. Its category of dangerous goods is 2.2, and its packing category is second grade.

Security

The filled cylinder is under pressure, and ought to be avoider bumping, falling, exposure and heat sourse during transport and storage.


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Q:China's largest asphalt production base where
Oil asphalt is the residue after distillation of crude oil. According to the degree of extraction of different, at room temperature into a liquid, semi-solid or solid. Oil asphalt color black and shiny, with a high temperature. Because it is in the production process has been distilled to 400 ℃ or more, and thus contain little volatile components, but there may still be high-molecular hydrocarbons without volatile, these substances are more or less harmful to human health.
Q:What are the inorganic compounds
The inorganic compound is a compound other than an organic compound. Organic compounds are organic matter containing C (carbon), in addition to CO2, carbonated, carbonate-containing.
Q:Sodium can be used to identify derivatives of hydrocarbons
A compound in which a hydroxyl group is directly attached to a carbon atom in a hydrocarbon group or a benzene ring side chain is called an alcohol.
Q:Identification of Derivatives of Chemical Hydrocarbons in High School
Phenol and ferric chloride reaction, aldehyde and copper hydroxide will produce brick red precipitation, and the formation of silver diamine hydroxide silver phase precipitation, and there are aldehydes in formic acid, an aldehyde corresponding to two silver Generation, and formaldehyde can be seen as there are two aldehyde groups, can be generated corresponding to the four silver quality.
Q:Why does toluene not belong to the derivatives of hydrocarbons?
Hydrocarbon: sound tīng, is composed of two elements of carbon and hydrogen organic compounds known as hydrocarbons, also known as hydrocarbons. It reacts with chlorine, bromine, oxygen and other hydrocarbons to produce derivatives of hydrocarbons. Such as methane and chlorine in the light conditions of reaction to produce methyl chloride, dichloromethane, chloroform and chloroform (carbon tetrachloride) and other derivatives. The concept of derivatives is hydrocarbon and chlorine, bromine, oxygen and other reaction products. While toluene is not methyl and benzene, she is a whole noun is aromatic. Also known as aromatic hydrocarbons. Generally have one or more six-ring (benzene ring) with a special structure. The simplest aromatic hydrocarbons are benzene, toluene, xylene. There is also naphthenes. As the name suggests it is a ring structure. The most common is the five carbon atoms or six carbon atoms of the ring, the former called cyclopentane, which is called cyclohexane. The molecular formula of the cycloalkane is of the formula CnH2n. Cycloalkane is also called cycloalkane hydrocarbons. And alkanes. Is a carbon atom between the single bond phase chain hydrocarbon. Since the number of atoms that make up the hydrocarbon and hydrogen is different, the result is that the petroleum contains hydrocarbon molecules with large and small differences. Alkanes are named according to the carbon atoms and numbers contained in the molecule, and the number of carbon atoms is less than 10, from 1 to 10, followed by a, B, C, D, E, G, Alkane to say that the number of carbon atoms in more than 11, with the number that thank you to adopt
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.) Inorganic chemistry is in addition to hydrocarbons and their derivatives, the nature of all elements and their compounds And their reaction to experimental research and theoretical interpretation of science, is the development of the discipline of the earliest branch of a discipline.
Q:Why can organic matter be unique in chemical substances? What is the nature of the C atom?
Organic carbon can be used in various architectures (ring, chain, short or long chain, twisted or planar aromatic or heterocyclic or naphthenes containing N / S / X halogen / P, etc.) Reaction mechanism (electrophilic addition, nucleophilic substitution, carbon positive ion intermediates, etc.). Due to the large negative carbon power is not great, the number of hybrid tracks can be 2 to 4 and not too much. For silicon, because of the electronegativity is less than hydrogen, resulting in silane hydrogen bonds in the biased hydrogen to make it easy to break, so silane in the air can be spontaneous combustion (not to mention disilane and above) The formation of compounds (similar to the alkyl) between the basic and hydrogen is so unstable that other similar compounds are difficult to stabilize.
Q:Why does the molecular atom compound do not belong to the life structure
Life structure is composed of CHO as the main element through the covalent bond of the combination of hydrocarbons and their derivatives, and you said the molecular atomic compounds are usually atomic or ionic bond
Q:Organic organic compounds are organic matter?
Organic polymer compounds are organic matter
Q:Why is dry ice not organic?
Organic compounds are mainly composed of oxygen, hydrogen, and carbon, and organic matter is the material basis for life.

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