R141b in Disposable Cyl

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Shanghai
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TT OR LC
Min Order Qty:
-
Supply Capability:
10000MT m.t./month

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Product Description:

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.


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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: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:What is the difference between hot and cold asphalt?
Cold mixed high-strength asphalt concrete, by adding asphalt in the thermosetting resin, coupled with the right amount of solvent to form a semi-flow asphalt binder, and the appropriate mix of aggregate from the asphalt concrete mixture. This asphalt concrete is a very high strength of 60 ℃, 30mm Marshall stability of 30000N, flow 20-30 (1 / 10mm), the stability of ordinary asphalt concrete is about 3 times, with good rutting resistance. Hot asphalt is composed of different molecular weight hydrocarbons and non-metallic derivatives of dark brown complex mixture, is a high viscosity organic liquid, was liquid, the surface was black, soluble in carbon disulfide. Asphalt is a waterproof moisture and corrosion of organic cementitious materials. Asphalt can be divided into coal tar pitch, petroleum asphalt and natural asphalt three: Among them, coal tar pitch is a by-product of coking. Petroleum asphalt is the residue after distillation of crude oil. Natural asphalt is stored in the ground, and some of the formation of ore or in the crustal surface accumulation. Asphalt is mainly used for coatings, plastics, rubber and other industries and pavement and so on.
Q:What is organic matter? Candle is organic?
For example: CH4 C2H6O and so are organic matter
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:What is the definition of organic matter
Organic matter usually refers to carbon-containing compounds, or hydrocarbons and their derivatives are collectively referred to as organic compounds.
Q:Is grease a polymer compound? Is it a derivative of saturated hydrocarbons?
Although the relative molecular mass of oil is large, but does not belong to the polymer compound, the polymer compound should refer to a chain with a base number n of the material. Nor is it a derivative of saturated hydrocarbons. The oil is a non-saturated tallow fatty acid glyceride, and the fat is a saturated glycerol ester of saturated higher fatty acids. The more the double bond, the lower the boiling point
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:Peracetic acid is not
A series of compounds produced by the substitution of hydrogen atoms in other molecular or atomic groups as hydrocarbon derivatives, peroxyacetic acid is CH3COOOH, and should be considered
Q:Are all carbon compounds all organic?
Not organic matter that is 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.

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