Cleaning Agent 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: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:Inorganic chemistry employment direction? Current research direction: Optical inorganic boring, and now are with rare earth elements and radioactive elements to do some material research. Or electrochemical. battery!

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 are the gaseous states of the oxygen-containing derivatives of the hydrocarbons under the standard conditions?: Halide only fluoride in normal temperature and pressure may be gaseous;

Q:What cells are composed of compounds: Protein and water

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

Q:The role of aromatic hydrocarbons: Aromatic compounds, historically, refer to a class of aromatic scent made from plant gums, but most of the currently known aromatic compounds contain no fragrance, so the word aromatic has been lost [1] The aromatic compounds are the general term for the carbocyclic compounds and their derivatives that conform to the Hockel rules, and their molecules have closed cyclic conjugated systems in their molecules; Π electrons meet 4n + 2, and the height is delimited; the bond length is averaged.Therefore, the compounds have a high degree of unsaturation, but the properties are relatively stable, such as easy to replace, and difficult to add and oxidation. This part focuses on the structure, naming, chemical properties, localization effects and application of aromatics in organic synthesis. [2]

Q:What is the difference between crude oil and asphalt?: Asphalt is the residue of crude oil

Q:Compare the difference between London smoke and Los Angeles photochemical smog: Los Angeles photochemical smog nitrogen content and hydrocarbons and derivatives more, mainly close to the car exhaust. Foggy London situation related to coal, soot solid particles and sulfur oxide more. Foggy London is more bleak, and Los Angeles is more toxic.

Q:Is polyethylene a derivative of hydrocarbons?: The definition is yes

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