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Topic: Iodine number

	Iodine - Wikipedia, the free encyclopedia
		Iodine is primarily used in medicine, photography and in dyes.
		Iodine compounds are important in the field of organic chemistry and are very useful in medicine.
		KI prevents the body from absorbing the radioactive iodine and caesium (chemically related to potassium) produced at the disaster area; by flushing the body with an excess of a related less-harmful chemical, the body removes the toxic chemical along with the antidote.
	en.wikipedia.org /wiki/Iodine (1152 words)

	Iodine (Site not responding. Last check: 2007-10-20)
		Iodine is a bluish-fl, lustrous solid, volatizing at ordinary temperatures into a blue-violet gas with an irritating odor; it forms compounds with many elements, but is less active than the other halogens, which displace it from iodides.
		Lack of iodine is the cause of goiter.
		Iodides, and thyroxin which contains iodine, are used internally in medicine, and as a solution of KI and iodine in alcohol is used for external wounds.
	www.scescape.net /~woods/elements/iodine.html (274 words)

	Iodine (PIM 280)
		Iodine may also be employed as a weak solution for the first- aid treatment of small wounds and abrasions, but it is rapidly inactivated by combining with tissue substances, and so delays healing.
		Iodine reaches the blood stream mainly in form of iodide, and it is incorporated into the thyroglobulin form in the thyroid gland, (Jones, 1977).
		Iodine in contrast agents and skin disinfectants is the major cause for hypothyroidism in premature infants during intensive care, (L'Allemand et al., 1987).
	www.inchem.org /documents/pims/pharm/iodine.htm (5994 words)

	Iodine (Site not responding. Last check: 2007-10-20)
		Iodine is a bluish-fl, lustrous solid that sublimess at standard temperatures into a blue-violet gas that has an irritating odor.
		In areas where there is little iodine in the diet - typically remote inland areas where no marine foods are eaten - iodine deficiency gives rise to goitre, so called endemic goitre.
		Tincture of iodine (3% elemental iodine in water/ethanol base) is an essential component of any emergency survival kit, used both to disinfect wounds and to sanitize surface water for drinking (3 drops/L, let stand for 30 minutes)
	www.sciencedaily.com /encyclopedia/iodine (1028 words)

	Iodine -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-20)
		Chemically, iodine is the least reactive of the (Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions) halogen s, and the most electropositive metallic halogen.
		Iodine is primarily used in (The branches of medical science that deal with nonsurgical techniques) medicine, (The act of taking and printing photographs) photography and in dyes.
		Iodine compounds are important in the field of (The chemistry of compounds containing carbon (originally defined as the chemistry of substances produced by living organisms but now extended to substances synthesized artificially)) organic chemistry and are very useful in (The branches of medical science that deal with nonsurgical techniques) medicine.
	www.absoluteastronomy.com /encyclopedia/i/io/iodine.htm (2641 words)

	Patent 5006312: Gravimetric titration apparatus for the determination of the iodine number of carbon black
		The iodine adsorption number is related to the surface area of carbon fls and is generally in agreement with nitrogen surface area, although it is also affected by the presence of volatiles, surface porosity, and extractables.
		The iodine adsorption number of the carbon fl is mathematically determined based on the gravimetrically determined concentration of the primary standard solution, the titrant, the iodine blank, and the supernatant from the equilibrated carbon fl-iodine solution mixture.
		Approximately 10 g of the iodine solution is dispensed into a flask and accurately weighed, 50 ml of deionized distilled water is then added to the iodine solution while rinsing the walls of the flask to ensure that all of the iodine is in the liquid phase and not on the sides of the flask.
	www.freepatentsonline.com /5006312.html (5706 words)

	Iodine number - Wikipedia, the free encyclopedia
		The iodine number in chemistry is the mass of iodine in grams that is consumed by 100 grams of a chemical substance.
		A iodine solution is violet in color and any chemical group in the substance that reacts with iodine will make the color disappear at a precise concentration.
		One application of the iodine number is the determination of saturation of fatty acids as double bonds in fatty acids also react with iodine compounds.
	en.wikipedia.org /wiki/Iodine_number (168 words)

	Iodine (I) - Chemical properties, Health and Environmental effects
		Iodine is naturally present in the ocean and some sea fish and water plants will store it in their tissues.
		Iodine is a building material of thyroid hormones that are essential for growth, the nervous system and the metabolism.
		Iodine 131 is one of the radionuclides involved in atmospheric testing of nuclear weapons, which began in 1945, with a US test, and ended in 1980 with a Chinese test.
	www.lenntech.com /Periodic-chart-elements/I-en.htm (530 words)

	It's Elemental - The Element Iodine
		Iodine is pronounced as EYE-eh-dine or as EYE-eh-din.
		Iodine is part of thyroxin, a hormone produced by the thyroid gland that controls the body's rate of physical and mental development.
		Iodine is used as a test for starch and turns a deep blue when it comes in contact with it.
	education.jlab.org /itselemental/ele053.html (214 words)

	Probert Encyclopaedia: Science & Technology (Io-Iz) (Site not responding. Last check: 2007-10-20)
		Iodine is a non-metallic halogen element usually obtained as a heavy, shining, flish-grey crystalline form and is used especially in medicine, photography and analysis.
		In chemistry, iodine number is the number of grams of iodine required to saturate 100 grams of fat.
		ISO 8859 is a series of computer character sets all of which have American ASCII in their low (7-bit) half, invisible control characters in positions 128 to 159 and 96 fixed width graphics in positions 160-255.
	www.probertencyclopaedia.com /SIB.HTM (1219 words)

	Facts about Iodine
		Iodine compounds are used as germicides, antiseptics, and dyes.
		Iodine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table.
		Find out more facts about Iodine on the Periodic Table which arranges every chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column.
	www.facts-about.org.uk /science-element-iodine.htm (397 words)

	IodineValue (Site not responding. Last check: 2007-10-20)
		The reaction with iodine was long used for analyzing the number of double bonds, that is, the degree of saturation.
		In iodine number determinations (titration) the quantity of iodine is determined which will just still be decolored by the fat or oil.
		In industrial applications, the number of double bonds in oil is frequently reduced to increase the oil's shelf life, to modify its melting point, or quite generally to adjust the original characteristics of the oil to specific requirements.
	www.ft-nir.com /Nutrition/iodzahl.htm (763 words)

	Iodine. Everything you wanted to know about Iodine but had no clue how to find it.. Learn about Iodine here! (Site not responding. Last check: 2007-10-20)
		Iodine compounds are important in the field of
		alcohol (as tincture of iodine) are used externally to disinfect wounds
		Iodine can be prepared in an ultrapure form through the reaction of
	encyclopedia.lockergnome.com /s/b/Iodine (920 words)

	Algone.com - Activated Carbon for Aquarium Use (Site not responding. Last check: 2007-10-20)
		The higher the iodine number the higher the degree of activation.
		Iodine numbers vary between 600 — 1200 and mainly adsorb low molecular weight particles, a number in the 1000 range being ideally suited for aquariums.
		In closing, a well suited aquarium carbon is coal based with an iodine number around 1000, molasses number around 230, acid washed, with a low ash content.
	www.algone.com /activated_carbon_pf.htm (888 words)

	Chemistry : Periodic Table : iodine : key information
		Iodine compounds are important in organic chemistry and very useful in medicine and photography.
		Lack of iodine is the cause of goitre (Derbyshire neck).
		Iodine is available commercially so it is not normally necessary to make it in the laboratory.
	www.webelements.com /webelements/elements/text/I/key.html (356 words)

	Article Archives
		Thus, the iodine number became the industry standard for liquid phase carbons and the carbon tetrachloride number (and more recently butane activity) became the standard for vapor phase carbons.
		In reality, since the iodine number is a measure of adsorption, and the dechlorination process is a reaction, iodine number has nothing to do with performance in dechlorination applications.
		While iodine number is a measure of adsorption, the concentration of iodine used in the test is such that the iodine number provides little indication of how a carbon will perform with trace concentrations such as those seen in most residential applications involving organic removal (see table 3).
	www.waternet.com /article.asp?IndexID=6631356 (1280 words)

	Patent 5002892: Gravimetric determination of the iodine number of carbon black
		The method of claim 1, further comprising standardizing said titrant by adding said titrant to a solution comprising an appropriate primary standard having a known concentration until a titration endpoint is reached and determining the concentration of said titrant by accurately weighing the amount of said titrant necessary to reach said endpoint.
		A blank iodine determination is made by pipetting 20 ml or dispensing 25 ml of 0.0473N iodine solution into a flask and titrating with 0.0394N sodium thiosulfate.
		The iodine solution is then titrated with the standardized sodium thiosulfate solution The titration may be done visually or colorimetrically.
	www.freepatentsonline.com /5002892.html (6215 words)

	Patent 5003020: Diallyl terephthalate prepolymer and process for producing seam
		A solution-polymerized prepolymer has a lower iodine number than a bulk-polymerized prepolymer but still has the above drawbacks, because the number of the monomer units in the carbon-carbon bonded molecular chain portion, which is composed of the allyl group for the monomer units, is still large.
		When the number of monomer units in the carboncarbon bonded molecular chain portion, which is composed of the allyl group for the monomer units, is 15 or more, gellation may occur before the polymer is sufficiently cross-linked to provide improved properties thereof.
		The iodine value is another important consideration because the properties are improved by increasing the cross-linking density, and should be controlled to a level lower than that of the bulk-polymerized prepolymer.
	www.freepatentsonline.com /5003020.html (5538 words)

	Formulas from Combustion Data
		The atomic number is written as a subscript on the left of the element symbol, the mass number is written as a superscript on the left of the element symbol, and the ionic charge, if any, appears as a superscript on the right side of the element symbol.
		Because all of the isotopes of an element have the same atomic number, the atomic number is often left off the isotope notation.
		For example, although the iodine atoms found in nature are almost 100% iodine-127, iodine-131 can be formed in nuclear reactions.
	www.mpcfaculty.net /mark_bishop/isotope_notation.htm (430 words)

	Biochem I - Labs
		The “ saponification number ” is used as an indicator of fatty acid chain length in triglycerides.
		The Iodine Number is the number of grams of iodine absorbed by 100 g of fat or oil.
		The amount of free iodine produced is equal to amount of iodine initially added as iodine monochloride (ICI) minus the amount of iodine reacting with the sample.
	xnet.rrc.mb.ca /davidb/new_page_18.htm (2915 words)

	Stability of BioDiesel and the 'Iodine Value'
		These chains differ in the number of carbon atoms and the number of carbon-carbon " double bonds " in the chain.
		The Iodine Value is not determined by measuring the stability of the fuel, rather it is determined by measuring the number of double bonds in the mixture of fatty acid chains in the fuel by introducing iodine into 100 grams of the sample under test and measuring how many grams of that iodine are absorbed.
		Iodine absorption occurs at double bond positions - thus a higher IV number indicates a higher quantity of double bonds in the sample.
	www.brevardbiodiesel.com /iv.html (1500 words)

	Nuclear Physics
		That is, Iodine has 53 protrons and 53 electrons.
		Remember, A is the "atomic mass number" of an isotope -- the total number of "nucleons" inside the nucleus.
		But if we have a large number of Iodine nuclei, we know that "on the average" -- or statistically -- if we wait 25 minutes only half of them will remain Iodine-128.
	www.ux1.eiu.edu /~cfadd/1160/Ch30Nuc/Iodine.html (288 words)

	Chemistry 1025
		The degree of unsaturation in a triglyceride is reflected nicely by a value known as the iodine number.
		The larger the value of the iodine number, the greater the extent of unsaturation.
		For example, corn oil has an iodine number of 110-130, while beef fat has an iodine number of 35-42.
	faculty.dbcc.cc.fl.us /swansoj/Saturated_and_Unsaturated_Fats_and_Oils.htm (432 words)

	Iodine Number (Site not responding. Last check: 2007-10-20)
		The amount of iodine used in this reaction may be determined by titration and expressed as the number of grams of iodine absorbed by 100 grams of oil.
		As the end of the reaction is approached shake the flask vigorously to remove iodine from the chloroform phase.
		equivalents of iodine absorbed by the sample is equal to ml standard solution required by sample minus that required by the blank.
	www.pentech.ac.za /clients/biosci/iodine.htm (404 words)

	LIPID (Site not responding. Last check: 2007-10-20)
		Iodine adds less readily than bromine across the double bonds in an unsaturated bond.
		The iodine number of a fat is the number of grams of iodine that will be consumed by 100g of fat or oil.
		The more double bonds a fat contains, the more iodine required for the addition reaction; thus, a high iodine number means a high degree of unsaturation.
	domanski.cs.csi.cuny.edu /klibaner/LIPID.htm (1076 words)

	Nonyl phenoxy polyoxyethylene ethanol-iodine complex Use
		Chemical Code is the California Department of Pesticide Regulation code number assigned as an identifier for each chemical.
		County Code is a code number that various California State agencies use to identify each California county.
		Field Count is the number of fields where this chemical was applied.
	www.pesticideinfo.org /Detail_ChemUse.jsp?Rec_Id=PC35198 (950 words)

	ResKem-Home (Site not responding. Last check: 2007-10-20)
		Trace Capacity Number (TCN) is a test which measures activated carbons high energy pore structure.
		Iodine number was believed to be the best method to measure carbons ability to adsorb.
		Common belief was "the higher the iodine number, the better the carbon".
	www.reskem.com /may2001.html (329 words)

	65 (Site not responding. Last check: 2007-10-20)
		The Iodine Number Technique is used to determine the number of double bonds in the solution.
		Then using the Iodine Number equation just as above, the number of double bonds, and the molar masses and percentage composition of both fatty acids, the estimated Iodine Number equation based on GC Data was found to be 130.5mg/g.
		The experimental Saponification Numbers and Iodine Numbers for corn oil were found to be 211mg/g (+/- 9mg/g) and 111mg/g (+/- 10mg/g).
	chat.carleton.ca /~jmcewan/experiments/biochemlab1.html (1777 words)

	Method Development for Determination of Iodine Number of Edible Oil and for Determination of Antioxidant in Fruit Juice (Site not responding. Last check: 2007-10-20)
		A spectrophotometric flow injection analysis was investigated for the determination of iodine number of edible oil.
		After oil sample reacted with Hanus solution (iodine monobromide in glacial acetic acid) for 5 minutes in dark, it was shaken with an aqueous potassium iodide.
		The proposed method was applied to samples with iodine numbers of 60 to 120.
	www.grad.cmu.ac.th /abstract/1999/sci/abstract/sci990020.html (267 words)

	Untitled Document
		If urinary iodine collection was added to an EPI survey, the collection of urine samples could be from all eligible individuals from households visited, whether or not there were children of the appropriate age range for the EPI survey.
		The label has written on it the cluster number (01-30) and the participant number at the cluster (01 to the number of samples obtained per cluster), or this number could be written directly on the tube.
		The number of teams to perform the survey will depend on a number of factors, including the number of clusters selected nationally to be surveyed and the desired amount of time to complete the survey.
	www.sph.emory.edu /PAMM/lab/chapter2.htm (4059 words)

	Glandular Support ...Remedies From Penn Herb Company, Ltd. 1-800-523-9971
		This form of iodine is an integral part of thyroid hormones, which regulates cellular metabolism & energy.
		Iodine is important for thyroid disorders whether under-active or overactive.
		Kelp with its treasured Iodine has a normalizing effect on the thyroid gland and works to treat enlarged thyroids, swollen & painful testes, lymph node enlargement, and other problems, which can be caused by the malfunction of the thyroid gland.
	www.pennherb.com /pennherb/info/scan69.html (3796 words)

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