Reference

Additives for hydrocarbon fuels

Additives for hydrocarbon fuels. Frost, James; Newman, Nathaniel Hart (Engl. ). Fr. Demande FR 2305491 22 Oct 1976,5 pp. (French). (France). CODEN: FRXXBL. CLASS: IC: C10L001-14. PRIORITY: GB 75-12052 22 Mar 1975. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Additives improving fuel performance at concns. of 0.05-0.1% contain arom. halogen compds. 33-57.5, aliph. ketones 20-30, arom. amines 20-30, phosphate esters 2-5, and arom. alcs. 0.5-2 vol.%. A typical additive contains C6H4Cl2 [25321-22-6] 30.00, iso-Bu2CO [108-83-8] 15.00, PhNH2 [62-53-3] 15.00, (Me2C6H3O)3PO [25155-23-1] 2.00, Me2C6H3OH [1300-71-6] 0.65, and 35-s oil 37.35 vol.%.

Differential determination of trace amounts of iodide and iodate in water by solvent extraction-inductively coupled plasma atomic emission spectrometry

Differential determination of trace amounts of iodide and iodate in water by solvent extraction-inductively coupled plasma atomic emission spectrometry. Miyazaki, Akira; Bansho, Kenji (Natl. Res. Inst. Resour., Yatabe 305, Japan). Spectrochim. Acta, Part B, 42B(1-2), 227-33 (English) 1987. CODEN: SAASBH. ISSN: 0584-8547. 123-92-2 and 1330-20-7 are cas registry numbers. These chemicals are also mentioned in this article. DOCUMENT TYPE: Journal CA Section: 61 (Water) Section cross-reference(s): 79 Inductively coupled plasma-at. emission spectrometry combined with solvent extn. was used to det. trace amts. of I- and IO3- in water. Nonpolar solvents such as nonane [111-84-2] and decane [124-18-5] show higher signal-to-background ratios than polar solvents such as xylene (I) [1330-20-7] and diisobutyl ketone [108-83-8]. However, memory effects in the nebulizer spray chamber are severe. This phenomenon is discussed in relation to the characteristics of I such as the formation of the charge transfer complex and the soly. in the org. solvents. The detection limits for I at 178.28 and 206.16 nm for the original samples (concn. factor 50) obtained by using I as the extractant are 8.3 and 21 ng/mL, resp. By back extn. of I from I into 0.5% ascorbic acid soln., the detection limit (concn. factor 100) at 178.28 nm is improved to 1.6 ng/mL. Most other ions except for the large amts. of Br- do not interfere. This method is applied to the anal. of brines and coastal seawaters. .