R141b for Cleaning
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 1000MT m.t./month
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1.Properties and Applications:
is a colorless and transparent liquid at room temperature.It has low ODP value and excellent chemical stability.Since its physical and chemical properties are similar to those of CFC-11,CFC-113,it can substitute CFC-11 as foaming agent for rigid or soft PU foam ,or CFC-113 as metal cleaner and solder -remover as well.
It has following characteristics:
1).Chemical Stability: It is stable while stored at roon temperature and will not decompose.
2).It can dissolve in most organic solvents, alcohol and ether.It has excellent compatibiity with grease and lubricant ,and no abvious effects on most polymers including plastic an rubbers.
3).HCFC-141b is not irritate to human skin and eyes ,but inhale HCFC-141b of high concetration eill cause anesthesia.
4).HCFC-141b is flammble ,and should be stored in well-ventilated place without flame.
2.Physical and Chemical Properties:
Chemical formula:CH3CFCL2
Molecular weight :116.9
Boiling point,°c:32.05
Critical temperature,°c:204.15
Critical pressure,MPa:4.25
Melting point °c:-103.5
Vapor pressure,25°c:707 mm Hg
Vapor density,(air=1):4
Flammablity limit(air%):7.6-17.7
Solubility in water,25°c:2.6g/l
3.Quality Specification
Purity,%:99.8
Moisture,ppm:30
Acidityppm:0.1
Vapor Residue:100
Appearance:colorless, not turbid
Odor:Odorless
1) Odor: slight ethereal
2) Form: liquefied gas
3) Color: clear, colorless
4) Purity: min. 99.9%
5) Acidity (as HCL): max. 1.0ppm
6) Virulence(TLV): none
7) Advantages: high efficiency, safe, energy saving, environmentally friendly,
economical
- 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: What is the hydrocarbon thing
- Hydrocarbons can be divided into: open chain hydrocarbons (carbon atoms in hydrocarbon molecules in open chain) - saturated hydrocarbons - alkanes - unsaturated hydrocarbons - olefins and polyolefins (carbon - carbon double bonds, unstable) - alkynes and (Cyclopentane) - cycloalkene - cycloalkyne aromatic hydrocarbon - monocyclic aromatic hydrocarbon (benzene and its homologues) - fused ring aromatic hydrocarbons (Polycyclic aromatic hydrocarbons and their homologues) - polycyclic aromatic hydrocarbons (naphthalene, anthracene and other condensed ring aromatic hydrocarbons and their homologues) all hydrocarbons are hydrophobic, that all the hydrocarbons are not soluble in water and coal The main ingredients are hydrocarbons
- Q: The functional group of the derivative of the hydrocarbon
- Common functional groups are: carbon-carbon double bond, -OH-COOH-CHO-NH2, often react, replace (including halogenation, nitration, sulfonation, esterification, hydrolysis, etc.), addition, elimination, addition polymerization , Organic matter oxidation and reduction, color and so on.
- Q: Are there two derivatives of equivalent hydrogen?
- You give the scope is too broad, at least to set in what kind of functional group range ah.
- 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: 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: Is the heterocyclic compound not a derivative of cyclic hydrocarbons? why?
- The heterocyclic compound is an organic compound containing a heterocyclic structure in its molecule. The atoms that make up the ring contain at least one heteroatom in addition to carbon atoms. The heteroatoms include oxygen, sulfur, nitrogen and the like. Theoretically, the heterocyclic compound can be regarded as a derivative of benzene, that is, one or more CH in the benzene ring is replaced by a heteroatom. The heterocyclic compound may be in parallel with the benzene ring to form a fused ring heterocyclic compound.
- Q: Organic chemistry, naming of derivatives containing oxygen (hetero) atomic bridged cyclic hydrocarbons
- Pro-butylbenzene ethane
- Q: Is grease a polymer compound? Is it a derivative of saturated hydrocarbons?
- Not a polymer can not be considered a saturated hydrocarbon derivatives. Natural oils contain unsaturated structures
- 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
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R141b for Cleaning
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 1000MT m.t./month
OKorder Service Pledge
OKorder Financial Service
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