Detail of "18540-29-9"

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CAS Number:
18540-29-9
Name:
Chromium, ion (Cr6+)
Molecular Structure:
Formula:
Cr
Molecular Weight:
52.00
Synonyms:
Chromium(Cr6+); Chromium ion(6+); Chromium(6+); Chromium(6+) ion; Chromium(VI) ion;Cr6+
Density:
g/cm³
Boiling Point:
°Cat760mmHg
Flash Point:
°C
Safety:
Human mutation data reported.
Analytical Methods:

For occupational chemical analysis use OSHA: #ID-103 or NIOSH: 1994: chromium hexavalent, 7600 and 7604; 1994: Elements by ICP, 7300 Details

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Heat-treatment of austenitic stainless steel for resistance to corrosion by nitric acid solutions containing oxidizing ions: Heat-treatment of austenitic stainless steel for resistance to corrosion by nitric acid solutions containing oxidizing ions. Abe, Seisaburo; Kaneko, Michiro (Nippon Steel Corp., Japan). 18540-29-9 and 12611-86-8 are also occured in this study. Jpn. Kokai Tokkyo Koho JP 03197619 A2 29 Aug 1991 Heisei, 7 pp. (Japan). CODEN: JKXXAF. CLASS: ICM: C21D006-00. APPLICATION: JP 89-335799 25 Dec 1989. DOCUMENT TYPE: Patent CA Section: 55 (Ferrous Metals and Alloys) A stainless steel contg. ￡0.02% P impurity is heated at 1100-1200° for 330 min and water-quenched to increase its resistance to corrosion by HNO3 contg. oxidizing, such as Cr6+, ions. .

Separation device utilizing oscillatory liquid membrane: Separation device utilizing oscillatory liquid membrane. Leighton, David T.; McCready, Mark J. (USA ). U.S. US 4994189 A 19 Feb 1991,10 pp. (United States of America). CODEN: USXXAM. CLASS: ICM: B01D061-38. NCL: 210637000. APPLICATION: US 88-252575 30 Sep 1988. DOCUMENT TYPE: Patent CA Section: 47 (Apparatus and Plant Equipment) The title app.In this article, certain chemicals are used. Some of their cas registry numbers are 108-95-2 and 18540-29-9 comprises 1st and 2nd chambers contg. 1st and 2nd fluids, resp., a porous support (e.g., glass frit) supporting a liq. membrane positioned between the 2 chambers, and an oscillating means (e.g., syringe pump) for inducing oscillatory flow of the liq. in the porous support at a selected frequency (adjustable) to enhance the rate of transport of 31 solute species from the 1st fluid to the 2nd fluid through the liq. membrane. Applications include recovery of phenol from wastewater, concn. of amino acids, sepn. of gases, etc. .