• Dichlorofluoroethane(R141b) System 1
Dichlorofluoroethane(R141b)

Dichlorofluoroethane(R141b)

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

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Specifications

Good Quallity;
Competitive Price;
Cleaning Agent;
Foaming Agent

Dichlofluoroethane(R141b)

R141b (HCFC-141b) is the leading substitute blowing agent for CFC-11 in rigid foam insulation materials which are widely used for residential and public constructions, home applications and transport vehicles.

Properties:

Index

Unit

R141b

Chemical   formula

CH3CCl2F

Molecular   weight

g/mol

117.0

Boiling Point   101.3 KPa(°C)

°C

32.1

Freezing Point   101.3 KPa(°C)

°C

-103.5

Critical Pressure

KPa

4640.2

Critical   Temperature (°C)

°C

210.2

Saturated   liquid density (25°C)

Kg/m3

1227

Specific heat (25°Cliquid)

KJ/kg·k

1.17

ODP

0.11

GWP

0.09

Quality Specification:

Index

Quality   Performance

Appearance

Bright &   Clear Liquid

Odor

No strange   stench

Purity %≥

99.9%

Moisture %≤

0.005

Acidity(as HCL)   %≤

0.00001

Evaporation   residue %≤

0.01

Chlorides(Cl-) test %≤

0.0003

R141b Packing: 13.6kg/30lb; 30kg, 250kg drum.


Q:Are all carbon compounds all organic?
No, carbon dioxide and carbonates, bicarbonate is not it
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:From the molecular level, are not all the energy obtained from the redox reaction?
You find the block out of the lithium battery thrown into the fire try ........ look at how the energy density
Q:Such as the title, the personal feeling of chemical transliteration of Chinese transliteration can be done so easy to write, weird name in addition to keep the high point, no good, but rather affect the people's understanding of medicine and memory, contrary to the text to facilitate the exchange of memory Original intention
China's chemical name may be the best of both Latin and English
Q:What is the most primitive person on earth?
The process of organic life is roughly divided into three steps: first the original earth simple inorganic compounds to form the original organic matter (hydrocarbons and its simplest derivatives), the second is based on the first step, gradually developed into a complex Organic compounds (sugars, nucleotides, amino acids) and their polymer polysaccharides, nucleic acids and proteins, as well as other organic substances, and the third is that with the evolution of natural conditions on Earth, the above substances are complex interactions, resulting in a metabolic Characteristics, can grow, reproduce, inheritance, variation of the original organic organisms.
Q:China's largest asphalt production base where
Coal tar pitch is a byproduct of coking, that is, the black material that remains in the distillation kettle after distillation of the tar. It is only fine with the physical properties of refined tar, there is no obvious boundaries, the general division method is to specify the softening point at 26.7 ℃ (cubic method) for the following tar, 26.7 ℃ above the asphalt. Coal tar pitch mainly contains volatile anthracene, phenanthrene, pyrene and so on. These substances are toxic, because the content of these components are different, the nature of coal tar pitch is also different. The change of temperature has great influence on coal tar pitch, which is easy to brittle in winter and easy to soften in summer. Heating with a special smell; heated to 260 ℃ in 5 hours later, it contains anthracene, phenanthrene, pyrene and other ingredients will be volatile.
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 carbohydrate? What is organic? What is it?
Most organic compounds mainly contain carbon, hydrogen two elements, in addition often contain oxygen, nitrogen, sulfur, halogen, phosphorus and so on. Part of the organic matter from the plant sector, but the vast majority of oil, natural gas, coal as raw materials, through artificial synthesis method. Compared with inorganic substances, the number of organic matter, up to several million kinds. The carbon atoms of the organic compound have a very strong ability to bind to each other to form a carbon or carbocyclic ring. The number of carbon atoms can be 1,2, it can be thousands, tens of thousands, many organic polymer compounds can even have hundreds of thousands of carbon atoms. In addition, the isotopic phenomenon of organic compounds is very common, which is one of the reasons for the many organic compounds. 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:Is polyethylene a derivative of hydrocarbons?
No, the derivative of the hydrocarbon is an element other than c.H
Q:What does organic and inorganic mean?
[Inorganic] inorganic is inorganic compounds referred to, usually refers to non-carbon compounds. A small number of carbon-containing compounds, such as carbon monoxide, carbon dioxide, carbonates, cyanides, etc. are also inorganic. Inorganic materials can be divided into oxides, acids, alkalis, salts and so on. Organic compounds Definitions Organic compounds usually refer to carbon-containing compounds, or hydrocarbons, and their derivatives, are collectively referred to as organic compounds.

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