Reference

Preparation of the cooked cured-meat pigment, dinitrosyl ferrohemochrome, from hemin and nitric oxide

Preparation of the cooked cured-meat pigment, dinitrosyl ferrohemochrome, from hemin and nitric oxide. Shahidi, F.; Rubin, L. J.; Diosady, L. L.; Wood, D. F. (Dep. Chem. Eng. Appl. Chem., Univ. Toronto, Toronto, ON M5S 1A4, Can.). J. Food Sci., 50(1), 272-3 (English) 1985. CODEN: JFDSAZ. ISSN: 0022-1147. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) The cooked cured-meat pigment dinitrosyl ferrohemochrome [26202-48-2] was synthesized from hemin [16009-13-5], a Fe3+ porphyrin, and gaseous NO in buffered solns. Reductants used were ascorbic acid [50-81-7], isoascorbic acid [16009-13-5], Na ascorbate [134-03-2], and Na dithionite [7775-14-6]. The purity of the pigment so obtained was >97%. Sodium ascorbate was the most effective reducing agent. Application of this pigment to meats reproduced the characteristic color of nitrite-cured products on thermal processing.

Nondispersed aqueous drilling fluid containing additive for removing oxygen and impeding corrosion

Nondispersed aqueous drilling fluid containing additive for removing oxygen and impeding corrosion. Carney, Leroy Lloyd; Watson, Jimmie Lee (Halliburton Co., USA). Braz. Pedido PI BR 7504775 31 Aug 1976, 28 pp. (Portuguese). (Brazil). CODEN: BPXXDX. CLASS: IC: C23F011-08. PRIORITY: US 74-518306 29 Oct 1974. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) A mixt. of Na2S2O4 [7775-14-6] and Na2S2O6 [7631-94-9] was added to an aq. drilling mud contg. Na montmorillonite, a carboxylated polymer, and NaCl to remove dissolved O and prevent the corrosion of metal surfaces of drilling equipment caused by O. Thus, 350 g of a Na2S2O4-Na2S2O6 mixt. was dissolved in 294 g diesel oil and 10 g oleophilic clay was added. An aq. soln. was prepd. contg. Wyoming bentonite 4.54, a maleic anhydride-vinyl acetate copolymer [9011-07-8] 0.227, and NaCl 5.45 kg/159 L, and this aq. fluid contained 6.3 ppm dissolved O at 23°. The O-removing additive mixt. was added at 45.4 g/159 L to the aq. soln. at 22.9°, and the O content was immediately reduced from 6.3 to 2.0 and after 5 min to 0.75 ppm.