Dibenzo-18-crown-6 CAS no: 14187-32-7 Assay: 98% Appearance: red powder Molecular formula: C20H24O6 Molecular weight: 360.4 Melting point: 160~163 degree Solubility Water :Slightly soluble Application:Crown Ether is a macrocyclic polyether whose structure contains hydrogen, carbon and oxygen atoms. Each oxygen atoms are confined between two carbon atoms and exhibits a conformation with a hole (accordingly called "crown"). The common names of Crown Ethers have a prefix to designate the total number of atoms in the cycle and a suffix to designate the number of oxygen atoms in the cycle. For example, 15-crown-5 is composed of 15 atoms in the cycle, 5 of which are O and 10 of which are C. As an ether, crown ethers are soluble in non-polar solvents. They are capable of strong solvency binding cations in their central cavity. The exterior of the ring is hydrophobic. The size of the interior central cavity, fused ring system, and side chains and functional groups determine the solvency capacity of the cation and the power of hydrophobic. Packing type: 500g bottled
We are glad to propose 500 MT of stain less steel mill scale. Mill scale is formed on the outer surfaces during by the hot rolling lamination of stainless-steel products. At a visual inspection the material is a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in colour, but it also contains considerable alloying elements such as chromium and nickel. The recovery ratio after melting in furnace for the most valuable alloy elements is: - Ni: 3.5 - 4.5% - Cr: 6-8% From the chemical and physical analysis performed on the scrap, and according to the European environmental rules, the material has been classified as a special non dangerous waste, listed in green list. In particular the mill scale can be classified as follows: Waste code: 10 02 10 The material is stored on cemented flooring, and it can be loaded loose in tipper trucks or containers. Chemical analysis of the material is available on request.
1 141-78-6 Ethyl acetate 2 79-20-9 Methyl Acetate 3 123-86-4 Butyl acetate 4 108-32-7 Propylene carbonate 5 75-12-7 Formamide 6 127-19-5 N,N-dimethylacetamide 7 872-50-4 N-methylpyrrolidin-2-one 8 26171-83-5 1,2-butanediol 9 504-63-2 1,3-Propanediol 10 26761-45-5 2,3-Epoxypropyl neodecanoate 11 57-55-6 Propylene Glycol 12 108-94-1 Cyclohexanone 13 95-47-6 o-xylene 14 2238-07-5 Diglycidyl ether 15 122-60-1 Phenyl glycidyl ether 16 34590-94-8 Dipropylene glycol monomethyl ether 17 110-54-3 Hexane 18 109-99-9 Tetrahydrofuran 19 75-09-2 Dichloromethane 20 110-82-7 Cyclohexane
1 101-68-8 4,4'-Diphenylmethane diisocyanate 2 9016-00-6 Poly(dimethylsiloxane) 3 26471-62-5 Tolylene diisocyanate 4 100-42-5 Styrene 5 141-32-2 Butyl acrylate 6 107-13-1 Acrylonitrile 7 106-99-0 Buta-1,3-diene 8 75-38-7 1,1-difluoroethylene 9 9-38-9 Chlorotrifluoroethylene 10 111-44-4 2,2'-Dichlorodiethyl ether 11 1187-93-5 Trifluoromethyl trifluorovinyl ether 12 21645-51-2 Aluminum hydroxide 13 116-14-3 Tetrafluoroethene 14 116-15-4 Hexafluoropropylene 15 126-99-8 Chloroprene 16 103-11-7 2-Ethylhexyl acrylate 17 140-88-5 Ethyl acrylate 18 78-79-5 Isoprene 19 96-33-3 Methyl acrylate 20 1300-21-6 Dichloroethane
S.N CAS No. Item 1 100-21-0 Terephthalic acid 2 67763-03-5 Silsesquioxanes 3 9003-01-4 Acrylic acid 4 1333-86-4 Carbon black 5 80-62-6 Methyl methacrylate 6 61788-97-4 Haloperidol 7 75-38-7 1,1-difluoroethylene 8 100-42-5 Styrene 9 9002-84-0 Poly(tetrafluoroethylene) 10 124-04-9 Adipic acid 11 107-21-1 Ethylene glycol 12 126-30-7 Neopentyl glycol 13 85-44-9 Phthalic anhydride 14 106-89-8 Epichlorohydrin 15 9003-08-1 Amino resin 16 9006-03-5 Chlorinated rubber 17 13463-67-7 Titanium dioxide 18 12227-89-3 Iron Oxide Black 19 922-67-8 Methylpropiolate 20 538-24-9 Trilaurin 21 9011-05-6 Urea formaldehyde 22 79-41-4 Methacrylic acid 23 1314-13-2 Zinc oxide 24 80-05-7 Bisphenol A 25 121-91-5 Isophthalic acid
1 108-78-1 Melamine 2 37640-57-6 Melamine cyanurate 3 63428-83-1 Polyamide 4 106-50-3 1,4-phenylenediamine 5 9002-89-5 Poly(vinyl alcohol) 6 105-60-2 �µ-caprolactam 7 10578-34-4 Stearyl benzoate 8 108-31-6 Maleic anhydride 9 108-05-4 Vinyl acetate 10 26264-06-2 Calcium dodecylbenzene sulfonate 11 111-69-3 Adiponitrile 12 924-42-5 N-Methylolacrylamide 13 100-20-9 Terephthaloyl Chloride 14 99-63-8 Isophthaloyl Chloride 15 1338-02-9 Copper naphthenate 16 6153-56-6 Oxalic acid dihydrate 17 79-10-7 Acrylic acid 18 75-01-4 Chloroethene 19 25190-06-1 Poly(butylene oxide) macromolecule 20 77-99-6 Trimethylol propane
1 117-81-7 Bis(2-ethylhexyl) phthalate 2 117-84-0 Di-n-octyl phthalate 3 85-69-8 Butyl 2-ethylhylhexyl phthalate 4 84-61-7 Dicyclohexyl phthalate 5 84-74-2 Dibutyl phthalate 6 84-69-5 Diisobutyl phthalate 7 131-11-3 Dimethyl phthalate 8 84-66-2 Diethyl phthalate 9 20548-62-3 Bis(7-methyloctyl) phthalate 10 68515-49-1 Diisodecyl phthalate 11 84-75-3 Di-n-hexyl phthalate 12 6422-86-2 Dioctyl terephthalate 13 137-89-3 Bis(2-ethylhexyl) isophthalate 14 123-79-5 Dioctyl adipate 15 122-62-3 Bis(2-ethylhexyl)sebacate 16 109-43-3 Bis(n-butyl)sebacate 17 512-56-1 Ttrimethyl phosphate 18 126-73-8 Tributyl phosphate 19 8013-07-8 Epoxidized soya bean oil 20 77-93-0 Triethyl citrate
1 27176-87-0 Dodecylbenzenesulphonic acid 2 151-21-3 Sodium dodecyl sulfate 3 9016-45-9 Nonylphenol Ethoxylate 4 63449-41-2 Benzalkonium Chloride 5 139-07-1 Dodecyldimethylbenzylammonium chloride 6 9004-82-4 AES 7 6863-42-9 Coconut oil acid diethanolamine 8 683-10-3 Lauryl betaine 9 25155-30-0 Sodium dodecyl benzene sulfonate 10 107-43-7 Betaine 11 112-00-5 Dodecyltrimethylammonium chloride 12 25496-72-4 Glyceryl monooleate 13 1120-02-1 Octadecy trimethyl ammonium bromide 14 9005-64-5 Polysorbate 20 15 9005-67-8 Tween 60 16 68213-23-0 Fatty alcohol polyglycol ether 17 68585-34-2 Sodium lauryl ether sulfate 18 9004-95-9 Polyethylene Glycol Monocetyl Ether 19 9004-98-2 Polyethylene glycol monooleyl ether 20 9003-11-6 Polyethylene-polypropylene glycol
Pularin: Foot ball shaped 60 atoms of carbon at edges is layed in pularin.Pularin atoms are arranged in ball. Each atom is called Bucky balls and tubes are called Bucky tubes or Nano tubes.Each nano tube is 1 to 7 nm diameter i.e 1nm=50000 part of a hair sting. where? 1)mangampet ,cuddapah dist.Ap,India.app 800 ppm(parts prer million)info given by stanford University. Cost: 150 times costlier than gold. 10 grams pularin $23000 to $45000 also info given by Bucky-USA website. Special uses if this becomes common: 1)Pularin coting on aeroplanes withstands from thunders ,rains ,Flashes etc. 2)Bullet proof ackets 3)curing cancer etc.
