Hi,

One of these may be able to help.

Bill

1. Aircraft-grade high-pressure fire-resistant oil using trixylyl phosphate as basic oil and production method thereof

By Zhang, Yungang; Zhang, Chuanyi; Zhao, Chunzhong; Liu, Xuekun

From Faming Zhuanli Shenqing (2013), CN 103215106 A 20130724, Language: Chinese

The present invention relates to an aircraft-grade high-pressure fire-resistant oil using trixylyl phosphate as base oil and prodn. method thereof. The oil is composed of trixylyl phosphate and bis(tert-butylphenyl)phenyl phosphate at wt. ratio 3.5-4.5:1.5-3, also contains epoxy soybean oil octyl ester 0.3-0.5, antioxidant 0197 0.5-0.6, triazole 0.8-1.1, and di-Me silicone oil 0.4-0.5 wt.%. The prodn. method comprises mixing trixylyl phosphate and bis(tert-butylphenyl)phenyl phosphate at a mass ratio of 3.5-4.5:1.5-3 for 1.5-2.5 h, adding the mentioned additives into the mixed oil and stirring to give a mother liq., stirring the mother liq. at 65±2°C and balancing for 3-5 h, filtering at 65±2°C through a 50-70 mesh sieve and balancing for 14-17 h, and analyzing fully. The product has low Cl content, low acid value, high ignition point, high b.p., good lubricity, abrasion resistance, aging resistance, foam resistance, flame resistance and thermal stability.

~0 Citings

2. GC-MS determination of phenol phosphates in nipple

By Lu, Chun-mei; Han, Da-chuan; Lu, Li-jun; Mu, Jun; Zhao, Qing-song; Fu, Xin

From Lihua Jianyan, Huaxue Fence (2011), 47(10), 1165-1167. Language: Chinese

A method for detn. of 3 phenol phosphates i.e., tricresyl phosphate (TCP), cresyl di-Ph phosphate (CDP) and trixylenyl phosphate (TXP), in nipple by GC-MS was proposed. The 3 phenol phosphates in sample was extd. with Et acetate, and the exts. were concd. by rotary evaporator in a water bath at 35°. The residue obtained was dissolved and made up to 2.0 mL with methanol, which was used for GC-MS anal. The DB-1701 capillary chromatog. column (30 m × 0.25 mm, 0.15 μm) was used for sepn., and the electron impact ionization source with selected ion monitoring (SIM) was adopted in MS. Linear relationships were obtained between values of peak area and mass concn. of the 3 phenol phosphates in the same range of 30.0-500 μg/L-1, with lower limit of detn. (10 S/N) of 30 μg/kg-1. Tests for recovery and precision were made by std. addn. method at 3 different concn. levels, values of recovery and RSD's (n = 10) found were in the ranges from 64.0% to 88.5% and 0.86% to 8.7% resp.

~0 Citings

4. Determination of solubility parameters and thermodynamic properties in hydrocarbon-solvent systems by gas chromatography

By Diaz, E.; Cazurro, A.; Ordonez, S.; Vega, A.; Coca, J.

From Brazilian Journal of Chemical Engineering (2007), 24(2), 293-306

DOI:10.1590/S0104-66322007000200014

Gas chromatog. used to calc. the specific retention vol. of several hydrocarbons in different chromatog. liq. phases (Squalane, Carbowax-400, Carbowax-1500, Carbowax-4000, Amine-220, Dinonyl phthalate, Tri-Bu phosphate and Trixylenyl phosphate). Some thermodn. parameters, such as enthalpy of sorption and Flory-Huggins parameters relating the interaction between liq. phases and solutes, were also calcd. from the detd. retention vols. Liq. phase soly. parameters of Squalane, Carbowax-400, Carbowax-1500 and Carbowax-4000 at 80° as well as the polar and apolar components were calcd. too. A new model was proposed to correlate polar contribution to the soly. parameter of a liq. phase with the specific retention vol. of a solute in this liq. phase.

~3 Citings

7. Ion composition elucidation (ICE): A high resolution mass spectrometric tool for identifying organic compounds in complex extracts of environmental samples

By Grange, Andrew H.; Osemwengie, Lantis I.; Genicola, Floyd A.; Sovocool, G. Wayne

From Preprints of Extended Abstracts presented at the ACS National Meeting, American Chemical Society, Division of Environmental Chemistry (2001), 41(2), 669-676.

For target analytes, stds. are purchased, extn. and clean-up procedures are optimized, and mass spectra and retention times for chromatog. sepn. are obtained to compare target compds. in environmental sample exts. This is an efficient approach and selective extn. and clean-up can decrease detection limits for target compds. relative to analyzing a raw ext. contg. compds. which yield mass interferences. However, selecting a class of compds. for study ignores many potentially toxic compds. which should be considered. Ion compn. elucidation (ICE) is a tool using high resoln. mass spectrometry which makes practical characterization and identification of many compds. responsible for chromatog. peaks obsd. for complex environmental samples. ICE has 2 facets: mass peak profiling from selected ion recording data to acquire data; and a profile generation model to plan expts. and interpret data. Up to 31 m/z ratios are monitored sequentially each second across up to 4 analyte and 2 calibrant mass peak profiles. Area under each analyte chromatog. peak in ion chromatographs are plotted to provide the analyte full or partial mass peak profiles. Up to 3 such data acquisitions are made for each analyte ion using a successive approxn. approach. Organoarsenic compds. in polluted groundwater, pharmaceuticals in wastewater, and organophosphate compds. in environmental matrixes were identified using this method.

~0 Citings

13. Analytical methods for environmental studies of chemical substances. 22. Identification [and determination] of organic phosphates in sediments by gas chromatography-mass spectrometry. II

By Kenmotsu, Katashi; Nakagiri, Motoharu; Ogino, Yasuo; Matsunaga, Kazuyoshi; Ishida, Tatsuo

From Okayama-ken Kankyo Hoken Senta Nenpo (1983), 7, 143-9. Language: Japanese

Gas chromatog. and gas chromatog.-mass spectrometry (GC/MS) were successfully used in conjunction with a GC/MS data search file to identify and det. trixylenyl phosphate, dixylenyl (trimethyl)phenyl phosphate, Ph di(isopropylphenyl) phosphate, tricresyl phosphate, trioctyl phosphate, etc. in water and river sediment heavily contaminated by household sewage.

~0 Citings

15. Studies of the detection and determination of trixylyl phosphate in biological material

By Karkalis, E.; Walther, G.; Penzes, L.

From Beitraege zur Gerichtlichen Medizin (1983), 41, 117-22. Language: German,

Trixylyl phosphate [ 25155-23-1 ] was detected in liver and kidney homogenates in EtOH by chromatog. on silica gel 60F254 plates with C6H6-EtOAc (9525-80:20) with diazotized paranitraniline spray reagent. For quant. detn., the spots were eluted with EtOH and the absorbance was detd. at 212 and 265 nm. The method is simple and rapid enough for use in poisoning cases.

~0 Citings

16. Environmental survey of chemicals. 19. Simultaneous determination of organophosphoric acid triesters

By Kenmotsu, Katashi; Matsunaga, Kazuyoshi; Saito, Naomi; Ogino, Yasuo; Ishida, Tatsuo

From Okayama-ken Kankyo Hoken Senta Nenpo (1982), 6, 126-32. Language: Japanese,

Org. phosphate in river water, seawater, and sea sediment were detd. simultaneously by solvent extn. and gas chromatog. The hydrophobic phosphates and hydrophilic phosphates were collected in n-hexane layer and chloroform layer, resp. The interference of S-compds. was eliminated by floridil gas chromatog. For example, Me3PO4 [512-56-1] and Et3PO4 [78-40-0] recovery was 70-90% and 87-95%, resp.

~0 Citings

Dear Sir,

Thank you very much for your answer.