Also found in: Medical, Legal, Acronyms, Encyclopedia, Wikipedia. calcium oxide n. A white, caustic, lumpy powder, CaO, used as a refractory, as a flux, in glassmaking, in waste treatment, in insecticides, as an industrial alkali, and in manufacturing steel, paper, and building materials. Also called calx, lime3, quicklime. 1. (Elements & Compounds) a white crystalline base used in the production of calcium hydroxide and bleaching powder and in the manufacture of glass, paper, and steel. Formula: CaO. Also called: lime , quicklime, calx , burnt lime, calcined lime or fluxing lime

Physicians Total Care, Inc. Name: Magnesium Oxide Form: tablet Physicians Total Care, Inc. NDC code: View Details Qualitest Pharmaceutical, Inc. Name: Magnesium Oxide Form: tablet Qualitest Pharmaceutical, Inc. NDC code: 0603-0209 View Details Qualitest Pharmaceuticals Name: Magnesium Oxide Form: tablet 0603-0213 View Details Safecor Health, LLC Name: Magnesium Oxide Form: tablet 48433-302 View Details State of Florida DOH Central Pharmacy Name: Magnesium Oxide Form: tablet State of Florida DOH Central Pharmacy NDC code: View Details Virtus Pharmaceuticals LLC Name: Magnesium Oxide Form: tablet Virtus Pharmaceuticals LLC NDC code: 76439-217 View Details Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.

First name is required! Last name is required! First name is not valid! Last name is not valid! This is not an email address! Email address is required! This email is already registered! Password is required! Enter a valid password! Please enter 6 or more characters! Please enter 16 or less characters! Passwords are not same! Terms and Conditions are required! Email or Password is wrong! This new technique was developed by the commercial gun blue manufacturers as a more environmentally friendly system than the commonly used hot application. Parts requiring blackening are simply placed in the liquid at room temperature, no electrical power is required. Convenient - Easy to do in house. No waiting for heatup of blackening solution. No waiting for the unpredictable return of parts from an outside vendor. Eliminates high outside vendor costs. Retain control of production and quality. Ideal for high volume or short runs. Works especially well for blackening large volume of small parts in a rotating barrel. Higher Productivity - Parts can be blackened in two minutes vs 15 to 30 minutes for hot oxide. Normally twice the amount of parts can be blackened in the same amount of time as with hot oxide. Controllable - Long bath life, blackening solution may be replenished indefinitely with periodic additions of fresh concentrate. So easy to install and use that you can now economically apply a pleasing decorative, sales-appealing black corrosion-resistant finish on parts previously left unfinished. Versatility - Blackens cast iron, forged steels, mild steels, hardened tool steels and powdered metal parts. No white salt bleedout as is common with hot oxide. Dimensional Control - No heat distortion. No smutty rub-off as with other room-temperature blackening processes. Energy Cost Saving - Blackening is done at room temperature vs hot oxide blackening done at 290°F. Safety - Blackening solution uses odorless, mild water-dilutable chemicals that require no venting vs hot oxide. No hazardous caustic chemicals with fumes that present health hazards and no spattering of hot, skin-burning chemicals. Low Maintenance - Longer Equipment Life - No expensive pollution control equipment. Parts Coverage - 600 to 1200 sq. ft. of surface area blackened per gallon of concentrate. How to achieve professional results in minutes:- Thoroughly clean the part to be blackened by either sandblasting, wire brushing, wire wool abrasive cleaning, or by scrubbing in 'VIM' or 'COMET' household abrasive cleaner. Make sure you have removed all rust, paint, oil and grease. Immerse the part in the mixed Black Oxide Solution and swirl around for between 30 seconds and 5 minutes. Alternatively, the part may simply be placed in the solution for 5 - 10 minutes. Remove the part from the solution and rinse in fresh water.

This week, a compound of many names. Brian Clegg explains more. Brian Clegg © Shutterstock As is often the case with a compound that has long been in use, calcium hydroxide is rich in alternative names. Its best known common description, slaked lime, suggests that it is lime (more properly known as calcium oxide) that has drunk its fill. ‘Milk of lime’ refers to its state before drying, when it is also known as limewater. ‘Hydrated lime’ merely describes its formation by adding calcium oxide to water, while the rather entertaining ‘pickling lime’ shows up one of its less well known uses. Throw in builders’ lime, lime cake, slack lime and choona and you can see that this is an etymological feast. The use of this simple compound with the formula Ca(OH)2 goes back to prehistoric times, with examples of lime plaster being found on statues in Jordan dating to around 7, 200 BC. Both lime-based mortar and plaster were used in the building of the Egyptian pyramids 4, 000 years ago, and the plaster has remained firm and intact to this day. Slaked lime was a familiar substance for thousands of years before, but it was only with Davy’s discovery of calcium in 1808 that it could be specifically identified as calcium hydroxide. This compound is readily manufactured from calcium oxide by adding water, a process so simple it makes it obvious why it is has been so widely used. The calcium oxide, with that traditional name of lime, is produced from quarried limestone by heating it in a kiln to more than 825°C, which gives off carbon dioxide from the calcium carbonate that is the prime constituent of the rock, leaving the oxide. The process of producing calcium hydroxide can also easily be reversed by heating it to 512°C, at which point the water is driven off, reverting the compound to calcium oxide. It is almost easier to say where calcium hydroxide is not used, so broad are its applications. It is the formation of calcium hydroxide from the calcium oxide in cement, when water is added, that starts the process of forming calcium carbonate, providing the solidity of the set mixture that is so important to the building industry. Traditional lime mortar used pure calcium oxide, but the harder cement typically starts with a calcium silicate that is, in effect, calcium oxide bonded to silicon dioxide. The same mix as lime mortar was also traditionally used for plastering walls, in which case it was often reinforced by mixing in horsehair. ‘Calcium hydroxide may look an innocent white powder, but it needs to be shown respect’A rather elegant sounding application of calcium hydroxide is as a flocculant, where it is responsible for encouraging a suspended colloid to form flocs. (A floc, incidentally, unlike a collection of sheep, has no k on the end of the word.) This role perhaps loses a little elegance, though, when you realize that the colloids in question are those present in sewage. More aesthetically pleasing is calcium hydroxide’s use in paper production, where reacted with sodium sulfide and sodium carbonate it generates the sodium hydroxide that is used to treat wood chips, breaking down the lignin to free up the cellulose. Calcium hydroxide is also a boon for those who are fond of breathing in difficult circumstances, for whom it provides a carbon dioxide scrubber, producing harmless calcium carbonate from CO2 in exhaled air. It is a versatile component for manufacturing, used for everything from brake pads to metal production, where it neutralizes the acids in waste gas. It is part of the traditional Bordeaux mix fungicide and is one of the reagents used to produce the stearates that are required to make the additives that give PVC added durability.

School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430073, China Org. Lett., 2015, 17 (5), pp 1118–1121 DOI: 10.1021/ol503687w Abstract A new copper-catalyzed [3 + 2] cycloaddition/oxidation reaction of nitro-olefins with organic azides has been developed to afford 1, 4(-NO2), 5-trisubstituted 1, 2, 3-triazoles. This reaction sequence has a broad substrate scope and affords NO2-substituted 1, 2, 3-triazoles with high regioselectivities and in good to excellent yields. The involved oxidative process overcomes the elimination of HNO2 for general cycloaddition of nitro-olefins with organic azides, which shows a high atom economy and potential applications. General experimental procedure, characterization data of the compounds, and CIF data for 3b and 3p . This material is available free of charge via the Internet at .

My quest began, as the juiciest ones often do, with a question. When working toward balance with someone with scoliosis, which side is actually the weaker side? I’ve been studying my own scoliosis for two years now, since I took a “Yoga For Scoliosis” yoga teacher training and found out that my back is curvy. On this question of muscle strength in scoliosis, the jury seemed to be out. Some systems suggested one strengthen the concave (the inward curving or sunken side) side, theorizing that the muscles on this side are “pulling” the vertebra together while pushing it apart on the convex side (where you often see the hump of expanded ribs or rotated vertebrae). Other systems recommend strengthening the convex (expanded) side, in order to train the musculature to push the spine back toward center and pull the expanded side closer to the midline. So which is it? I researched medical studies (most of which involve comparing different kinds of braces and, worse still, different types of surgeries) and finally came across one that seems to zoom in on this very issue. The study involves comparing samples of biopsies of paraspinal muscles obtained during surgery from 14 females with scoliosis against a control group of nine females without scoliosis volunteers. The results fascinate me. But first, a physiology detour. For our purposes, there are two types of muscle fibers: slow-twitch (technically called slow-twitch oxidative or postural muscle fibers) and fast-twitch (fast-twitch, glycolytic also called phasic muscle fibers). There are also slow-twitch, oxidative-glycolytic muscles – but we’ll focus mainly on the first two types.

Drug information provided by: Micromedex US Brand Name Ammens Medicated Balmex Boudreauxs Butt Paste Critic-Aid Skin Care Pack Delazinc Desitin Hemorrodil Lassars Paste Medi-Paste Periguard Perishield Prevacare Personal Protective Canadian Brand Name Dr Scholls Medicated Foot Powder Silon Zincofax Extra Strength Zincofax Fragrance-Free Zincofax Original Zinc Oxide Descriptions Zinc oxide topical cream is used to treat and prevent diaper rash. It is also used to protect skin from being irritated and wet caused by diaper use. This medicine is available as an over-the-counter (OTC) product. This product is available in the following dosage forms: Cream Ointment Paste Lotion Powder Spray Dressing Gel/Jelly Before Using In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered: Allergies Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully. Geriatric No information is available on the relationship of age to the effects of zinc oxide cream in geriatric patients. Drug Interactions Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine. Other Interactions Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Iron oxidation kinetics and phosphate immobilization along the flow-path from groundwater into surface water B. van der Grift1, 2, J. C. Rozemeijer2, J. Griffioen1, 2, and Y. van der Velde3 1Department of Innovation, Environmental and Energy Sciences – Faculty of Geosciences, Utrecht University, P.O. Box 80115, 3508 TA Utrecht, the Netherlands 2Deltares, P.O. Box 85467, 3508 AL Utrecht, the Netherlands 3Soil Geography and Landscape, Wageningen University and Research Centre, Droevendaalsesteeg 4, 6708 PB Wageningen, the NetherlandsRevised: 30 September 2014 – Accepted: 17 October 2014 – Published: 27 November 2014Abstract. The retention of phosphorus in surface waters through co-precipitation of phosphate with Fe-oxyhydroxides during exfiltration of anaerobic Fe(II) rich groundwater is not well understood. We developed an experimental field set-up to study Fe(II) oxidation and P immobilization along the flow-path from groundwater into surface water in an agricultural experimental catchment of a small lowland river. We physically separated tube drain effluent from groundwater discharge before it entered a ditch in an agricultural field. Through continuous discharge measurements and weekly water quality sampling of groundwater, tube drain water, exfiltrated groundwater, and surface water, we investigated Fe(II) oxidation kinetics and P immobilization processes. The oxidation rate inferred from our field measurements closely agreed with the general rate law for abiotic oxidation of Fe(II) by O2. Seasonal changes in climatic conditions affected the Fe(II) oxidation process. Lower pH and lower temperatures in winter (compared to summer) resulted in low Fe oxidation rates. After exfiltration to the surface water, it took a couple of days to more than a week before complete oxidation of Fe(II) is reached. In summer time, Fe oxidation rates were much higher. The Fe concentrations in the exfiltrated groundwater were low, indicating that dissolved Fe(II) is completely oxidized prior to inflow into a ditch. While the Fe oxidation rates reduce drastically from summer to winter, P concentrations remained high in the groundwater and an order of magnitude lower in the surface water throughout the year. This study shows very fast immobilization of dissolved P during the initial stage of the Fe(II) oxidation process which results in P-depleted water before Fe(II) is completely depleted. This cannot be explained by surface complexation of phosphate to freshly formed Fe-oxyhydroxides but indicates the formation of Fe(III)-phosphate precipitates. The formation of Fe(III)-phosphates at redox gradients seems an important geochemical mechanism in the transformation of dissolved phosphate to structural phosphate and, therefore, a major control on the P retention in natural waters that drain anaerobic aquifers.

Rent now * Final gross prices may vary according to local VAT. Abstract. Iron is an essential trace nutrient for most known organisms. The iron availability is limited by the solubility and the slow dissolution kinetics of iron-bearing mineral phases, particularly in pH neutral or alkaline environments such as carbonatic soils and ocean water. Bacteria, fungi, and plants have evolved iron acquisition systems to increase the bioavailability of iron in such environments. A particularly efficient iron acquisition system involves the solubilization of iron by siderophores. Siderophores are biogenic chelators with high affinity and specificity for iron complexation. This review focuses on the geochemical aspects of biological iron acquisition. The significance of iron-bearing minerals as nutrient source for siderophore-promoted iron acquisition has been confirmed in microbial culture studies. Due to the extraordinary thermodynamic stability of soluble siderophore-iron complexes, siderophores have a pronounced effect on the solubility of iron oxides over a wide pH range. Very small concentrations of free siderophores in solution have a large effect on the solution saturation state of iron oxides. This siderophore induced disequilibrium can drive dissolution mechanisms such as proton-promoted or ligand-promoted iron oxide dissolution. The adsorption of siderophores to oxide surfaces also induces a direct siderophore-promoted surface-controlled dissolution mechanism. The efficiency of siderophores for increasing the solubility and dissolution kinetics of iron oxides are compared to other natural and anthropogenic ligands.

This book brings together in one, compact volume all aspects of the available information about the iron oxides. It presents a coherent, up to date account of the properties, reactions and mechanisms of formation of these compounds. In addition, there are chapters dealing with iron oxides in rocks and soils, as biominerals and as corrosion products together with methods of synthesis and the numerous application of these compounds. Their role in the environment is also discussed. The authors are experts in the field of iron oxides and have worked on all the topics covered. Much recent data from the authors' own laboratories is included and opportunities for further research are indicated. Special features are the electron micrographs and colour plates together with the many different spectra used to illustrate properties and aspects of behaviour. Numerous tables and graphs enable trends and relationships to be seen at a glance. The book concludes with an extensive bibliography. This book should prove invaluable to industry and to all researchers who, whatever their background and level of experience, are interested in this rapidly expanding field. It is an essential volume for any scientific library and is now in its second, completely revised and extended edition!