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Topic: Zinc spar

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	Zinc - LoveToKnow 1911
		Metallurgy The principles underlying the extraction of zinc may be summarized as: (I) the ore is first converted into zinc oxide; (2) the oxide is distilled with carbon and the distillate of metallic zinc condensed.
		Zinc blende, however, being zinc sulphide, is not directly reducible by charcoal; but it is easy to convert it into oxide by roasting: the sulphur goes off as sulphur dioxide whilst the zinc remains in the (infusible) form of oxide, ZnO.
		Zinc oxide, ZnO, is maufactured for paint by two processes - directly from the ore mixed with coal by volatilization on a grate, as in the Wetherill oxide process, and by oxidizing the vapour given off by a boiling bath of zinc metal.
	www.1911encyclopedia.org /Zinc (5166 words)

	Zinc (Site not responding. Last check: 2007-09-22)
		Zinc, Zn, is a transition metallic element found in Group IIb of the periodic table.
		Zinc in the presence of dilute acid is a powerful reducing agent, probably due to Nascent Hydrogen, H*, liberated in the reaction being a better reducing agent than hydrogen gas.
		Zinc is detected by heating the material with sodium carbonate on a charcoal block when the zinc oxide produced is coloured yellow when hot and white when cold.
	www.ucc.ie /ucc/depts/chem/dolchem/html/elem/elem030.html (240 words)

	Smithsonite - Wikipedia, the free encyclopedia
		Smithsonite, or zinc spar, is zinc carbonate ZnCO
		Historically, smithsonite was identified with hemimorphite before it was realised that they were two distinct minerals.
		Zinc Carbonate is commonly used in the form of Calamine Lotion.
	en.wikipedia.org /wiki/Zinc_carbonate (130 words)

	Zinc and salts (PIM G020)
		Zinc has a standard electrode potential of +0.761 and is thus electropositive to most structural metals except aluminium and magnesium, which is the basis for its use in batteries and electrogalvanising of steel.
		Zinc sulphate is used in agriculture and zinc phosphide as a rodenticide (the toxic effects of zinc phosphide are principally due to the release of phosphine).
		Zinc is distributed widely throughout the body and is excreted in the faeces with only traces appearing in the urine, since the kidneys have little or no role in regulating the content of zinc in the body.
	www.inchem.org /documents/pims/chemical/zincsalt.htm (6297 words)

	ZINC - Online Information article about ZINC
		Zinc oxide is used in the arts as a white pigment (zinc white) ; it has not by any means the covering power of white lead, but offers the advantages of being non-poisonous and of not becoming discoloured in sulphuretted hydrogen.
		A solution of zinc chloride is easily produced from the metal and hydrochloric acid; it cannot be evaporated to dryness without considerable decomposition of the hydrated salt into oxychloride and hydrochloric acid, but it may be crystallized as ZnCl2•H2O.
		Zinc carbonate, ZnCO3, occurs in nature as the mineral calamine (q.v.), but has never been prepared artificially, basic carbonates, ZnCO3.xZn(OH)2, where x is variable, being obtained by precipitating a solution of the sulphate or chloride with sodium carbonate.
	encyclopedia.jrank.org /YAK_ZYM/ZINC.html (6098 words)

	zinc
		Zinc can be obtained by roasting its ores to form the oxide and by reduction of the oxide with coal or carbon, with subsequent distillation of the metal.
		Zinc is not considered to be toxic, but when freshly formed ZnO is inhaled a disorder known as the oxide shakes or zinc chills sometimes occurs.
		Zinc poisoning is mostly accidental from the intake of pesticides, inadvertent therapeutic use of heavy doses of zinc salts, or drinking of acidic juices or brews made in galvanized iron utensils.
	www.speclab.com /elements/zinc.htm (1508 words)

	FROM THE BUILDERS
		The root and tip ribs are made of aluminum as are the rear spar and the short front spar which transmit the torsion and drag forces into the fuselage.
		Since these spars consist of two machined channels and two shear webs which are riveted together, it is necessary to slosh them with a rubber sealing compound which comes with the kit.
		Use a 6' scale or metal strip held under the skin overhang against the rear spar flange to accurately measure the correct distance of the drill guide from the edge of the rear spar.
	www.soaridaho.com /Schreder/Schreder/HP-18_construction_3.html (4806 words)

	potassiumfeldspar.htm
		K spar is also found widely in the schists and gneisses of the state's Canadian Shield Province.
		K spar occurs as a clastic and authigenic mineral in Upper Precambrian, Cambrian and Ordovician sandstones and siltstones.
		WOOD COUNTY: K spar is abundant in granite in the Frederick Schill Quarry northeast of Vesper.
	www.uwrf.edu /~wc01/potassiumfeldspar.htm (1998 words)

	Aluminum alloy products suited for commercial jet aircraft wing members - Patent 5865911
		The flange portions of integral spar are riveted or connected to the spaced apart upper and lower wing skins and the spar bridges or connects across the distance the skins are spaced apart.
		It is preferred that the zinc content of the alloy range from a lower limit of about 5.9 or 6 or 6.1 or 6.2% up to an upper limit of about 6.6 or 6.7 or 6.8%.
		In accordance with a preferred practice of the invention, one or both end members, or spars, are made or shaped, typically by operations comprising machining, from thick plate made in accordance with the invention and fastened to the upper and lower wing skin members, as shown in FIG.
	www.freepatentsonline.com /5865911.html (10089 words)

	Beech 18 spar rust and corrosion (Site not responding. Last check: 2007-09-22)
		The C models had spars made with thinner walled spar tubes which may have led to more flexing in flight and were more susceptible to damage during unusual ground operations.
		Then the spar was stenciled at the factory with "HEAT TREATED ASS'Y" in fl paint in several locations (I have posted shots of this at the bottom of the same web page for you to look at http://www.twinbeech.com and click on the spar concerns button).
		You would think that the spars are as good as the outside but this is not necessarily the case in the majority of the aircraft that I have looked at.
	www.twinbeech.com /beech18sparconcerns.htm (5632 words)

	[No title] (Site not responding. Last check: 2007-09-22)
		The Brent Spar was installed in the North Sea Brent Field in 1976, to provide a storage and tanker off-loading system for the Brent platforms: The buoy is approximately 140 m in height, cylindrical in shape and moored to the sea bed by six anchors.
		The Spar is located at Latitude 61degø03' 14.7" N, Longitude 01degt40'04" E, approximately 2.9 km from the Brent 'A' platform and 1.9 km from Brent 'B' platform the water depth in the field is some 140m.
		Naturally occurring radio nuclides such as those in the Brent Spar sludge and scale are present in the oceans as a result of input from rivers, the atmosphere, and radioactive decay of their parent radio nuclides in the water column and in bed sediments.
	archive.greenpeace.org /comms/brent/bshyp.html (16415 words)

	Zn = Zinc - an essential element
		Commercial zinc is available in form of ingots, lumps, sheets, wire, shot, strips, sticks, granules, mossy, and powder (dust).
		Zinc chloride fumes have caused injury to mucous membranes and pale gray cyanosis.
		Increasing zinc levels reduces the toxic effects of too much copper in plants and humans.
	www.luminet.net /~wenonah/hydro/zn.htm (434 words)

	[No title] (Site not responding. Last check: 2007-09-22)
		The sacrificial anodes used to protect these tanks are made of Zinc, which is a PARCOM fl list substance.
		Levels of zinc in samples of the sludge from 2 of the 7 tanks filled with this water were reported to be >100 mg/l.
		It is probable that there will be considerable levels of Zinc in the water so that it will have to be treated as hazardous waste (C Vivian pers.
	archive.greenpeace.org /comms/brent/Mcminn.html (535 words)

	Specialty Paints and Coatings - Simco Coatings Inc.
		Zinc Guard-1508 is a single package, organic zinc rich air-dry finish, with a high percentage of zinc pigment that offers superior corrosion resistance.
		It may be used as a Marine Spar Varnish for structural and architectural use.
		Simflex is a Vinyl Resin and Zinc Chromate based coating which exhibits excellent adhesion to aluminum and galvanized substrates.
	www.simcocoatings.com /uspaint.html (844 words)

	Mark's RV-6 Logbook - DEC '99 (Site not responding. Last check: 2007-09-22)
		All Horizontal Stabilizer (HS) and Vertical Stabilizer (VS) spar and ribs.
		Dad and I primed, cleaned and alodined the longer parts (most of pieces except skins) then protected with zinc chromate.
		Minal preps for riveting trim for elevator horn on spar.
	home.earthlink.net /~eibeattie/rv6arch/marklog1.htm (312 words)

	Mark's RV-6 Logbook - NOV '00 (Site not responding. Last check: 2007-09-22)
		Cut spar spreader angles from aluminum angle stock for left & right spars - started to round corners.
		Drilled spreader angles to spar and clecoed in place.
		Left spar - Inserting rivets and final alignment of spar components.
	home.earthlink.net /~eibeattie/rv6/lognov0.htm (129 words)

	Crystals and Elements of Color
		ZINC, yellow, yellow-green and green transparent, and opaque white, opaque yellow, orange, red, brown and fl.
		Then the zinc-lead zone, with zinc sulfide as sphalerite ore, lead sulfide is galena ore, then silver.
		To "vitriolize", means to treat with sulfuric acid, it gives a glassy appearance to metallic sulfates; white vitriol is made from the lead or zinc ore, blue vitriol is made from copper, green vitriol is made from copperas, a ferrous sulfate, iron.
	www.realcolorwheel.com /crystal.htm (7842 words)

	ZODIAC CH 640 Series Rudder Assembly Manual
		On spars and longerons, transverse scratches and nicks must be removed by filing and sanding lengthwise to remove scratches.
		The Doublers are reinforcements for the SPAR section, positioned inside the SPAR as shown on Drawing 640-R-2.
		Note that the top of the bottom bracket is located at 510 mm from the bottom of the spar.
	www.newplane.com /CH_640_wing/CH_640_Rudder_Manual.htm (3758 words)

	GemRocks: Smithsonite
		Turkey fat(or turkey fat ore) - common name, especially among zinc miners, for yellowish, apparently greenockite-pigmented, smithsonite.
		Zinc spar - name sometimes given smithsonite, but usually to that which is fairly coarsely crystalline.
		This is one of the mineral materials for which some rather recently contrived metaphysical and healing attributes have been forwarded; and, not remarkably (perhaps?) they have been broken down according to the different colors of the mineral -- e.g., “Green smithsonite is associated with renewal, rebirth and new beginnings.
	www.cst.cmich.edu /users/dietr1rv/smithsonite.htm (672 words)

	Page 8
		Assembled the Horizontal Stabilizer Main Spar Assembly (SNX-T03-01) using parts previously built.
		The mating surfaces were spray painted with Zinc Oxide paint for corrosion protection before the
		layout of the ribs and then drilling/clecoing the ribs to the two spar assemblies.
	home.nc.rr.com /mcrowder/index-8.html (124 words)

	[No title] (Site not responding. Last check: 2007-09-22)
		Lasse Ostman's white shino in which we substituted for Nepheline syenite by Custer spar and added 5% QIT Red Dust.
		Custer spar 56.00 56.00 Barium carbonate 23.00 23.00 Hardwood ash 10.00 10.00 Zinc oxide (calc.) 10.00 10.00 Bell Dark ball clay 1.00 1.00 ------ -------- Totals: 100.00 100.00
		Custer spar 51.00 51.00 Hardwood ash (washed) 10.00 10.00 Zinc oxide (calc.) 8.00 8.00 Barium carbonate 21.00 21.00 Ball clay 10.00 10.00 ------ -------- Totals: 100.00 100.00
	www.dinoclay.com /glzbase/gbrec19.html (5310 words)

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