Detail of "11105-19-4"

Reference

Effect of chloroacetyl chlorides and chloroacetic acids on the corrosion of metals in trichloroethylene and tetrachloroethylene

Effect of chloroacetyl chlorides and chloroacetic acids on the corrosion of metals in trichloroethylene and tetrachloroethylene. Dilla, W.; Koeser, H. J. K. (Inst. Chem. Technol. Brennstofftech., TU Clausthal, Clausthal-Zellerfeld D-3392, Fed. Rep. Ger.). Werkst. Korros., 35(1), 16-22 (German) 1984. CODEN: WSKRAT. ISSN: 0043-2822. DOCUMENT TYPE: Journal CA Section: 56 (Nonferrous Metals and Alloys) Section cross-reference(s): 55 The corrosion of stainless steels X8CrTi17 [12743-03-2], X2CrNiMoN22-5 [71631-40-8], X2CrNi18-9 [12611-86-8], X3CrNiMoN 17-13-5 [39302-96-0], X10CrNiTi18-9 [54611-20-0], and X10CrNiMoTi18-10 [12728-34-6], Monel NiCu30Fe [11105-19-4], brasses CuZn15 [39442-89-2] and CuZn40 [12682-85-8], bronzes CuSn6 [39368-94-0] and CuAl8 [53336-85-9], Cu, and Zn in C2HCl3 and C2Cl4 contg. 0.1-1% dichloroacetic acid + dichloroacetyl chloride or trichloroacetic acid + trichloroacetyl chloride was studied. NiCu30Fe had the highest corrosion resistance in all media. 54611-20-0 and 7440-50-8 are just another two chemicals used in this study. The corrosion of stainless steels was noticeable only in C2Cl4 contg. trichloroacetyl chloride. .

Inhibitors for acid gas conditioning solutions

Inhibitors for acid gas conditioning solutions. Krawczyk, Leroy S.; Martin, Charles W.; Pearce, Roscoe L. (Dow Chemical Co., USA). U.S. US 4431563 A 14 Feb 1984, 7 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C23F011-14; C23F011-16; C23F011-18. NCL: 252189000. APPLICATION: US 82-400340 21 Jul 1982. DOCUMENT TYPE: Patent CA Section: 55 (Ferrous Metals and Alloys) Section cross-reference(s): 51 Corrosion of the ferrous alloy surfaces in gas conditioning equipment (esp. in sour natural gas streams) is inhibited by an aq. conditioning soln. contg. alkanolamines and a thionitrogen compd. (esp. a metal thiocyanate or thioamide).Several reagents with their cas registry numbers 7440-70-2 and 7786-81-4 are used here. The initially added soln. requires a conditioning period to dissolve a sufficient amt. of metals (esp. Ni or Co) for synergism with thionitrogen compds. Optionally the required synergistic metals are added as sol. salts of Co, Ni, Ca, Cu, Cr, Zn, Sn, Al, and Mg. Thus, conditioning of a H feed stream contg. 18% CO2 was made at 50 ′ 106 ft3/day and 300 psi. Aq. monoethanolamine (I) [141-43-5] was used as the conditioning soln. and was regenerated in a stripping column. The heat exchangers included components from stainless steel and Monel. Corrosion in 18-25% I solns. was decreased by addn. of 200 ppm NH4SCN, resulting in: (a) <2 mil/yr for C steel, compared with 740 without the inhibitor; (b) <1 mil/yr for AISI 304 [11109-50-5] stainless steel, vs. 12; and (c) <1 mil/yr for Monel 400 [11105-19-4], vs. 2. In a lab. test, corrosion of the AISI 1020 [12725-36-9] steel in aq. 25% I soln. satd. with CO2 was detd. after 24 h at 121°. For 200 ppm thiocyanate inhibitor and 5-200 ppm Co2+ (added as a sol. salt) the corrosion rate was 1.9-5.5 mil/yr, compared with 35.0 in the I soln. .