By early June, it was becoming clear that epichlorohydrin
supply in China was tightening at an alarming rate and within one week prices had jumped by more than Rmb2500-3000/ton ($320-385/ton before VAT).
[alpha]-RA or 3,5-dihydroxybenzoic acid ([alpha]-RA, [greater than or equal to] 98%), epichlorohydrin
(99.0%), and sodium hydroxide (NaOH, [greater than or equal to] 98%), were purchased from VWR (USA).
In a beaker of 250 ml, epichlorohydrin
(9.3 ml) was added at the speed of 10 seconds per drop to a mixture of absolute ethanol and isopropamide (5 ml) under ice water bath.
In the current study, new chitosan-metal oxide nanoparticles (Ch-MO NPs) including chitosan-CuO nanoparticles (Ch-CuO NPs) and chitosan-ZnO nanoparticles (Ch-ZnO NPs) were prepared through the crosslinking mechanism by glutaraldehyde and then epichlorohydrin
. The nanoparticles were used as a stationary phase in the preparation of SPE cartridge.
Cellulose (medium fibre from cotton linters), epichlorohydrin
(EP), HCl, NaOH, potassium bromide (KBr), phenolphthalein (phth),p-nitrophenol (PNP), sodium bicarbonate, deuterated dimethyl sulfoxide (DMSO-[d.sub.6]), and 1-butyl-3-methylimidazolium chloride ([[C4Mim].sup.+][Cl.sup.-]) ionic liquid (IL) was obtained from Sigma-Aldrich Canada Ltd.
Sebille, "Polycondensation of cyclodextrins with epichlorohydrin
. Influence of reaction conditions on the polymer structure," Macromolecular Symposia, vol.
Succinic acid, isopropanol, Hexadecyl dimethyl amine, epichlorohydrin
and the solvent (99%) were purchased from China National Pharmaceutical Group Corporation and were used without any further purification.
Each layer was coated onto the urea fertilizer granule through the granulation method in the presence of epichlorohydrin
Dermatitis caused by epichlorohydrin
, oxprenolol hydrochloride and propranolol hydrochloride.
Propylene oxide (PO), epichlorohydrin
(ECH), toluene, and cationic catalyst B[F.sub.3]-O[([C.sub.2][H.sub.5]).sub.2] were purchased from Merck (Darmstadt, Germany).
Epoxy resins are important compounds derived from the reaction of oxirane containing compound epichlorohydrin
(ECH) and bisphenol A (in case of phenol epoxy resin).
It entails a fabric care additive composition having an acidic pH comprising, based on total composition weight, from about 5% to about 20% of a cationic polymer, said fabric care additive composition further comprising a cationic surfactant, wherein said cationic polymer has a charge density of from about 0.05 meq/g to about 25 meq/g at a pH of from about 2 to about 11 and said cationic polymer is a polymer selected from the group consisting of alkylamine epichlorohydrin
polymers, homopolymers of diallyldimethyl ammonium chloride, copolymers of diallyldimethyl ammonium chloride, and combinations thereof, in the presence of water in a washing machine with a conventional detergent as a source of anionic surfactant to form a mixture having an ACD:CCD ratio of from about 2.T to about 0.1:1.