National Lead

Batteries, Electric (Lead-Acid Storage)"in ECT 1st ed., Vol. 2, pp. 340—360, by Joseph A. Orsino and Thomas C. Lynes, National Lead Company "Secondary CeUs, Lead—Acid" under "Batteries and Electric CeUs, Secondary" in ECT 2nd ed., Vol. 3, pp. 249—271, byjoseph A. Orsino, National Lead Company "Batteries and Electric CeUs, Secondary (Lead—Acid)" in ECT 3rd ed., Vol. 3, pp. 640—663, by James B. Doe, ESB Technology Company. 

Basic lead silicochromate [11113-70-5] (National Lead Co. designation Pigment M-50) is a composite in which basic lead chromate, ie, chrome orange, is precipitated onto a lead siUcate—siUca base. It does not have an appreciable chromate solubiUty and depends on lead oxide for its effectiveness. 

The first [3S+2C] cycloaddition reaction using a Fischer carbene complex was accomplished by Fischer et al. in 1973 when they reported the reaction of the pentacarbonyl(ethoxy)(phenylethynyl)carbene complex of tungsten and diazomethane to give a pyrazole derivative [45]. But it was 13 years later when Chan and Wulff demonstrated that in fact this was the first example of a 1,3-dipolar cycloaddition reaction [46,47a]. The introduction of a bulky trime-thylsilyl group on the diazomethane in order to prevent carbene-carbon olefi-nation leads to the corresponding pyrazole carbene complexes in better yields (Scheme 15). 

EPA has developed standards for lead paint hazards, lead in dust, and lead in soil. To educate parents, homeowners, and tenants about lead hazards, lead poisoning prevention in the home, and the lead abatement process, EPA has published several general information pamphlets. Copies of these pamphlets can be obtained from the National Lead Information Center or from various Internet sites, including http //www.epa.gov/opptintr/lead. 

NLSP. 1998. Reference guide for consumers. Part 5. guide for general information on state lead programs. National Lead Service Providers Listing System, http //www.leadlisting.org... 

Eluex An early process for extracting uranium from its ores, using both ion-exchange and solvent extraction. Developed by the National Lead Company, United States. 

R-N [Republic Steel Corp. and National Lead Co.] An ironmaking process developed by these two American companies in the 1960s. Granulated ore is reduced with coal in a rotating kiln, heated by burning the coal at the lower end. Three plants were operating in 1970. 

Titanox FR A process for making cellulose textiles flame-resistant by treating them with titanyl acetate chloride and antimony oxychloride. Invented in 1951 by W. F. Sullivan and I. M. Panik at the National Lead Company, New York. See also Erifon. 

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