CAS:75-57-0
Molecular Formula:C4H12ClN
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Tetramethyl-Ammonium Chloride; Tetramethylammoniumchlorid; Tma; Tetramethyl-Ammoniuchloride; Tetramine Chloride; Usaf An-8
Brief Introduction
Tetramethylammonium chloride is a phase transfer catalyst in organic synthesis. Its catalytic activity is stronger than that of triphenylphosphorus and triethylamine. It is a white crystalline powder at room temperature. It is volatile, irritating, easy to absorb moisture, soluble in methanol, water and hot ethanol, insoluble in ether and chloroform. When heated above 230 ℃, it is decomposed into trimethylamine and methyl chloride. Median lethal dose (mice, abdominal cavity) 25mg / kg. It is also used in the synthesis of liquid crystalline epoxy compounds, polarographic and pop analysis, electronic industry, etc.
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CAS:77-73-6
Molecular Formula:C10H12
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Cyclopentadiene Dimer; Bicyclopentadiene; Biscyclopentadiene; 4,7-Methano-1H-Indene,3A,4,7,7A-Tetrahydro-; DCPD
Brief Introduction
Dicyclopentadiene appears as a liquid with an acrid odor. Flash point 90°F. The vapors are irritating to the eyes and respiratory system. Subject to polymerization if subjected to heat for prolonged periods or if contaminated. If the polymerization takes place inside a container, the container may violently rupture. Insoluble in water. Density 8.2 lb / gal. Used in paints, varnishes, as an intermediate in insecticides, as a flame retardant in plastics.
The third monomer ethylene norbornene, polycyclopentadiene pesticide, flame retardant, medicine and perfume of polyester, resin and plastic used for the preparation of ethylene propylene rubber.
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CAS:791-28-6
Molecular Formula:C18H15OP
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Tppo; Tpo; (C6H5)3P=O; Triphenylphosphorusoxide; Aurora Ka-1603; Triphenylphosphinoxid; Triphenylphosphine Oxide; Triphenylphosphanoxid; Triphenyl-Phosphineoxid; Triphenylphosphanoxide; Phosphine Oxide, Triphenyl-; Diphenylphosphorylbenzene
Brief Introduction
Triphenyl phosphine oxide is an organic phosphorus compound. It is white crystal at room temperature. It is the oxidation product of triphenylphosphine. It is often used as organic synthesis intermediate, pharmaceutical intermediate, catalyst and extractant.
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CAS:88-12-0
Molecular Formula:C6H9NO
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N-Vinylpyrrolidone; 1-Vinyl-2-Pyrrolidone; 1-Vinylpyrrolidin-2-One; N-Vinyl-2-Pyrrolidinone; Polyvinylpyrrolidone; Vinylpyrrolidone; 1-Ethenylpyrrolidin-2-One; NVP
Brief Introduction
N-vinylpyrrolidone is mainly used to produce polyvinylpyrrolidone, which is widely used in medicine, daily chemical and food industries.
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CAS:100-20-9
Molecular Formula:C8H4Cl2O2
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Terephthaloyl Dichloride; P-Phthaloyl Chloride; 1,4-Benzenedicarbonyl Dichloride; 1,4-Dichloroformylbenzene; P-Phenylenedicarbonyl Dichloride; P-Phenylenedicarbonyldichloride; P-Phthaloyl Dichloride; Terephthaoloyl Chloride; 1,4-Benzenecarbonyl Chloride; P-Benzoyl Chloride
Brief Introduction
Terephthaloyl chloride (TCL, 1,4-benzenedicarbonyl chloride) is the acid chloride of terephthalic acid and is one of two monomers used to make Kevlar(R), the other being p-phenylenediamine. Its CAS reference number is 100-20-9 and its chemical formula is C8H4Cl2O2.
TCL is used as a key component in performance polymers and aramid fibers, where it imparts flame resistance, chemical resistance, temperature stability, light weight, and very high strength. TCL is also an effective water scavenger, used to stabilize isocyanates and urethane prepolymers.
TCL is a white crystalline solid at room temperature, soluble in common organic solvents. Its melting point is 81.5-83 °C, its boiling point is 265 °C. It is corrosive.
TCL is used for making various copolymers and aramid polymers such as Heracron, Twaron and Kevlar(R):
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