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Triphenyl phosphate

About: Triphenyl phosphate is a research topic. Over the lifetime, 579 publications have been published within this topic receiving 6681 citations. The topic is also known as: phenyl phosphate & TPP.


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TL;DR: In this article , the authors identified 21 organophosphate esters (OPEs) by suspect screening and seven novel OPEs by characteristic fragments-based nontarget screening and further identified six OPAs using a suspect list derived from these identified OPEs.
Abstract: In this study of extracts of 100 food contact material (FCM) samples collected from South China, we identified 21 organophosphate esters (OPEs) by suspect screening and seven novel OPEs by characteristic fragments-based nontarget screening. Six organophosphite antioxidants (OPAs) were further identified using a suspect list derived from these identified OPEs. Of these compounds, 18 OPEs and 3 OPAs were found for the first time in the extracts of FCMs. (Semi-)quantification revealed that seven of the OPEs [triphenyl phosphate, tris(2,4-di-tert-butylphenyl) phosphate (TDtBPP), bis(2,4-di-tert-butylphenyl) methyl phosphate, (2,4-di-tert-butylphenyl)pentaerythritol phosphate, triethyl phosphate, 2-ethylhexyl-diphenyl phosphate, and trimethyl phosphate] and two of the OPAs [tris(2,4-di-tert-butylphenyl) phosphite (TDtBPPi) and pentabutylated triphenyl phosphite] were present in more than 50 FCM samples and that TDtBPP and TDtBPPi were the dominant OPE and OPA in FCMs, respectively [with median concentrations of 7260 ng/g (range: <8.50-103,879 ng/g) and 31,920 ng/g (range: <9.80-657,399 ng/g), respectively]. A migration test revealed that the migration efficiencies of compounds from a plastic coffee cup to food simulants in the cup increased as the ethanol/water ratio in the food simulants increased. This study significantly enhanced our understanding on the diversity and occurrences of OPEs and OPAs in FCMs used in China and their FCM-to-food migration risk.

2 citations

Patent
25 Feb 2004
TL;DR: A brominated polyphenylene oxide having a molecular skeleton obtained by condensing tribromophenols and satisfying the requirements: (A) its 20 wt.% solution in chloroform has an absorbance at 600 nm of not larger than 0.6; (B) when 50 ml of ion-exchanged water is added to its 1.00 g/30 ml solution in dioxane, the resulting solution has an electroconductivity of not large than 10 mu S/cm measured at 25 DEG C; and (C) when a mixture comprised of
Abstract: A brominated polyphenylene oxide having a molecular skeleton obtained by condensing tribromophenols and satisfying the requirements: (A) its 20 wt.% solution in chloroform has an absorbance at 600 nm of not larger than 0.6; (B) when 50 ml of ion-exchanged water is added to its 1.00 g/30 ml solution in dioxane, the resulting solution has an electroconductivity of not larger than 10 mu S/cm measured at 25 DEG C; and (C) when a mixture comprised of 20 % by weight of the brominated polyphenylene oxide and 80 % by weight of triphenyl phosphate is heated at 280 DEG C for 20 minutes, the halide ion increase therein is not larger than 10 mu mols per gram of the brominated polyphenylene oxide, is used as a flame retardant. When it is added to resin, the resin moldings are excellent in its flame retardancy, electric properties, physical properties, thermal stability and appearance (color hue), and they do not corrode molds.

2 citations

Patent
18 Nov 2015
TL;DR: In this paper, an industrialized preparation method for resorcinol phenyl-group polycondensation phosphate (RDP) low in triphenyl phosphate (TPP) content was proposed.
Abstract: The invention relates to an industrialized preparation method for resorcinol phenyl-group polycondensation phosphate (RDP) low in triphenyl phosphate (TPP) content. The preparation method includes the steps that first, part of resorcinol and excessive phosphorus oxychloride react under catalyst presence to generate resorcinol phosphorus oxychloride polycondensate containing the excessive phosphorus oxychloride; under the vacuum action, most excessive phosphorus oxychloride is removed through distillation; then under the vacuum action, remaining bisphenol A is continuously added into obtained resorcinol phosphorus oxychloride polycondensate containing little phosphorus oxychloride; finally, the obtained resorcinol phosphorus oxychloride polycondensate containing a trace of phosphorus oxychloride and phenol react to prepare a resorcinol phenyl-group polycondensation phosphate (RDP) crude product, the RDP crude product is dissolved in methylbenzene and other dissolvent, and after acid pickling, alkaline washing and rinsing, the dissolvent and water are removed through reduced pressure distillation to obtain the RDP product. The preparation technology is simple, and the RDP low in TPP content is obtained on the premise of not additionally arranging production equipment and changing original production equipment.

2 citations

Patent
21 Dec 2016
TL;DR: A multifunctional lubricating oil additive composed of polychloroprene, polyethylene, triazine resin, polyvinyl acetate emulsion, polyglycerol polyricinoleate, hexamethylphosphorotriamide, coal tar, vanillin, arbutin, acetylspiramycin, sodium lauroyl sarcosinate, a tourmaline powder, molybdenum disilicide powder, a silica powder, vaseline, a cerium oxide powder, sodium humate, a kaolin powder,
Abstract: The invention relates to a multifunctional lubricating oil additive composed of the following components: polychloroprene, polyethylene, triazine resin, a polyvinyl acetate emulsion, polyglycerol polyricinoleate, a polyvinyl acetate emulsion, hexamethylphosphorotriamide, coal tar, vanillin, arbutin, acetylspiramycin, sodium lauroyl sarcosinate, a tourmaline powder, a molybdenum disilicide powder, a silica powder, vaseline, a cerium oxide powder, sodium humate, a kaolin powder, a sodium zirconate powder, trioctyl phosphate, polyacrylonitrile fibers, polythiophene, triphenyl phosphate, N-methyl-2-pyrrolidone, gamma-(2,3-epoxypropoxy)propyl trimethoxy silane, amino silane, benzothiazole, phenoxyphosphoryl dichloride, and sodium benzoate. The product has relatively excellent flame retardant, acid and alkali resistant, mildew proof and antibacterial properties, and improves the product performance.

2 citations

Patent
18 Apr 2007
TL;DR: In this article, a mixture of 2,4-Dichlorophenoxyacetic acid ethers, such as ethyl, isopropyl, butyl and octyl, was described.
Abstract: FIELD: agriculture. ^ SUBSTANCE: herbicidal composition is described, containing a mixture of at least one of 2,4-dichlorophenoxyacetic acid ethers, such as ethyl, isopropyl, butyl, isobutyl, 2-ethylhexyl, and octyl, with at least one of such phosphoric or phosphorous acid ethers as tributyl phosphate, diethyl phosphate, triphenyl phosphate, bis(2-ethylhexyl) phosphate, ethyl phosphate, tris(butoxyethyl) phosphate, triisobutyl phosphate, diethyl phosphite, or dibutyl phosphite. A method of undesirable vegetation control is also described. The formulations suitable for this composition are emulsifiable concentrate, "oil in water" or "water in oil" emulsions, and microemulsions. The ratio of amounts of the 2,4-D ethers and phosphor-based acid ethers is 1:0.9 to 1:0.036, in conversion to the 2,4-D acid. ^ EFFECT: higher efficiency against weed plants in grain crops. ^ 10 cl, 6 tbl, 2 dwg, 12 ex

2 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202324
202263
20217
202014
201931
201834