Calcium oxide and the specific products derived from it are obtained by the process of calcination of calcium carbonate at high temperature. Calcium oxide is a chemical compound of calcium and oxygen. Slightly soluble in mercury to form gallium amalgam. Calcium's symbol is "Ca" and has an atomic number 20, with atomic weight 40.078amu. It is a white, caustic and alkaline crystalline solid. The Physical Property fields include properties such as vapor pressure and boiling point, as well ... Chemical PAC-1 PAC-2 PAC-3; Calcium oxide (1305-78-8) 6 mg/m3 : 110 mg/m3 : 660 mg/m3 (DOE, 2016) Regulatory Information. Calcium's chemical properties are attributed to its location in group 2 of the periodic table. It reacts violently when placed in water, forming calcium hydroxide, more commonly known as lime. When calcium comes in contact with air, it forms a coating of nitride and oxide to minimize further corrosion. Chemical Properties of calcium oxide (CAS 1305-78-8) Download as PDF file Download as Excel file Download as 2D mole file Predict properties. Calcium compounds appear very frequently in nature, due to its chemical properties. Physical properties of Gallium:Gallium is Light blue metal, which becomes a silvery white liquid at 29.76 °C. Chemical Properties Reactivity towards Air. We supply several grades of Calcium Oxide using various kiln technologies. Then both physical and chemical properties of calcium oxide derived from calcination of eggshell wastes were systematically characterized by XRF, XRD, SEM, particle size analyzer and gas adsorption experiment. Why calcium has +2 charge? Calcium oxide (formula CaO) is the basic oxide. Physical and Chemical Properties Appearance: White to slightly yellowish powder. The broadly used word lime means calcium containing inorganic materials, in which oxides and hydroxides of calcium, magnesium, aluminium, silicon and iron are present. It is also applied as inorganic antimicrobial material for controlling microorganisms. It is known as quicklime. InChI InChI=1S/Ca.O InChI Key ODINCKMPIJJUCX-UHFFFAOYSA-N Formula CaO SMILES O=[Ca] Molecular Weight 1 56.08 CAS 1305-78-8 Other Names. Solubility: Slightly soluble in water with release of heat, formation of calcium hydroxide. In this case, salts are formed. A considerable amount of heat energy is released during this reaction. It causes irritation when exposed to eyes and skin. When subjected to very high temperature in the air, calcium can burn to produce nitride. As a commercial product lime often also contains magnesium oxide, silicon oxide and smaller amounts of aluminium oxide and iron oxide. The chemical compositions of the alloys were 0.010 Mn, 0.005 Si, 0.004 Fe, 0.003 Cu, 0.007 Ni, while the difference between measured and specified composition of aluminum, zinc, and calcium is imperceptible. About 40 percent of all the calcium oxide produced in the United States goes to metallurgical applications. Currently the global calcium oxide market is observing vibrant growth and is expected to witness to record a CAGR of 6.2% over the forecast period. Being one of the compound of chemical, calcium hydroxide is not related to calcium supplements production as it contains acidic properties in it. Calcium oxide (CaO), is generally known as quicklime or burnt lime, it is a commonly used chemical compound. Oxides is a complex chemical substances that represent simple chemical compounds of the elements with oxygen. Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound in obtaining hypochlorite and to neutralize acidic soils. However, the low toughness of CS limits its application in load-bearing conditions. NIST … MATERIALS AND METHODS: Microchemical … It is made in a lime kiln. Lime reacts readily with water to produce slaked lime, which is the chemical compound calcium hydroxide. Calcium oxide is an alkaline product that allows the regulation of many industrial processes. The specimens for electrochemical tests were finished by … Calcium oxide plays a comparable role in the manufacture of other metals, such as aluminum and magnesium. CHEMICAL PROPERTIES - decomposes into calcium oxide and carbon dioxide at 825 degrees centigrade - when heated to decomposition it emits acrid smoke and irritating vapours - reacts with acids and acidic salts to generate a gaseous carbon dioxide with effervescence (bubbling) Calcium oxide (CaO) is the most important materials which has been popularly used in many fields, such as catalyst, cosmetic and ceramic. Its chemical formula is CaO. Bioaccumulation is not relevant for calcium oxide. On this basis it may be concluded that grades of calcium oxide containing up to 35% calcium carbonate will not be auto flammable. White, hygroscopic. Properties of calcium oxide: Quicklime lime. They are salt-forming and do not form salts.There are 3 types salt-forming oxides: Basic oxides (from the word "Base"), acidic oxides and Amphoteric oxides.Example of oxides, not forming a salt may be: NO (nitric oxide) is a colorless gas, odorless. The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant metal in the earth’s crust. Find high quality Calcium Oxide Chemical Properties Suppliers on Alibaba. These properties cause it to bond easily with other things to form new substances, such as calcium carbonate and calcium oxide. This chemical is available in hard lump form. Calcium oxide (CaO), commonly known as burnt lime, lime or quicklime, is a widely used chemical compound. Magnesium oxide, also known as magnesia, is a naturally occurring compound found in metamorphic rocks 2. Therefore, he can: - dissolve in water (H2O) with release of energy. One of the properties, calcium phosphide, is used to make fireworks. There will be no intake of calcium oxide as such from water or soil, nor will calcium oxide prevail under its original form in the organisms. CaCO 3 + Heat → CaO + CO 2. Calcium silicate (CaSiO3, CS) ceramics are promising bioactive materials for bone tissue engineering, particularly for bone repair. This reaction looks like this: CaO (calcium oxide) + H2O (water) = Ca (OH) 2 (calcium hydroxide) + 63.7 kJ / mol; - react with acids and acid oxides. Chemical Data; Chemical symbol: CaO: CAS No. Lime (calcium oxide) is a white solid with strongly basic properties. 9.13 CaO NPs. CaO - CALCIUM OXIDE. It absorbs CO2 from the air. Because calcium belongs to group 2 of the periodic table (Mr. Becambara), and only has two valence electrons available for the formation of bonds, which yields to the oxygen atom. 1305-78-8: Group: Calcium – 2 Oxygen - 16: Electronic configuration: Calcium – [Ar] 4s 2 Oxygen - [He] 2s 2 2p 4: Chemical Composition; Element Content (%) Calcium: 71.48: Oxygen : 28.51: Physical Properties. Recent findings indicating the promising biocompatibility of graphene imply that graphene can be used as an additive to improve the mechanical properties of composites. Odor: Odorless. Read More; pozzolana There are many different chemical properties of calcium that interact with other chemicals to form various types of calcium. These properties have a variety of uses, including disinfecting the water of swimming pools, acting as food sweeteners, and melting street and sidewalk ice during winter months. Chemical properties of calcium – atomic configurations. Small amounts of uncombined lime and magnesia also are present, along with alkalies and minor amounts of other elements. Properties of oxides. As an alkaline earth metal, it is a good reducing agent for preparing other metals, such as uranium and thorium. It releases heat when dissolved in water and changes into calcium hydroxide. Alibaba offers 933 Calcium Oxide Chemical Properties Suppliers, and Calcium Oxide Chemical Properties Manufacturers, Distributors, Factories, Companies. The broadly used term "lime" connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate. In the aquatic environment and in soil, exposure to calcium oxide actually comes down to exposure to calcium and hydroxyl ions. The main reason behind the existence of calcium in combined form is that it reacts instantly with air. The chemical formula of calcium oxide is CaO, in which calcium is like the acid ion (electron acceptor) Ca 2+ , and oxygen as the basic ion (electron donor) OR 2- . Liquid gallium is easily cooled and cooled to 0 ° C without curing. Lime’s chemical properties. Structure . Chemical properties of calcium oxide. It is a white powder. The chemical properties of calcium oxide nanoparticles are outlined in the following table. Calcium oxide is a crystalline solid. Calcium . The chemical formula of magnesium oxide is MgO, meaning it contains a magnesium atom and an oxygen atom, forming an ionic bond 2.Magnesium oxide has a wide range of uses and can be found in a number of household and industrial items including antacids, laxatives and dietary supplements 2. Shows basic properties, is reacted with acids. Moreover, the various properties of calcium oxide are its low cost and high availability. The product takes the form of white powder or colorless crystal which is produced when other compound is quenched or mixed with water. Gallium can infiltrate glass, so it should not be stored in a glass container. Refractory, thermally stable, evaporates at very high temperatures. In this case, calcium hydroxide is formed. Based on its chemical properties, CaO exist in the alkaline earth group on periodic table [6, 7]. Its crystal structure is Isometric with space group Fm3m. What is this information? The primary forms of quicklime are: High calcium quicklime - derived from limestone containing 0 to 5 percent magnesium carbonate. OBJECTIVE: The aim of the study was to evaluate chemical-physical properties and apatite-forming ability of three premixed calcium silicate materials containing monobasic calcium phosphate (CaH4P2O8) bioceramic, tantalum pentoxide and zirconium oxide, recently marketed for endodontics (TotalFill BC-Sealer, BC-RRM-Paste, BC-RRM-Putty). Discover just what the chemical properties of calcium here. The metal is trimorphic, harder than sodium, but softer than aluminium.A well as beryllium and aluminium, and unlike the alkaline metals, it doesn’t cause skin-burns. Calcium carbonate was also found to be not auto flammable in a study performed using Method N.4 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, 4th revised edition, 2003. It is also a base. The Versatile Chemical Fact Sheet Lime Terminology, Standards & Properties LIME TERMINOLOGY Quicklime, the product of calcination of limestone, consists of the oxides of calcium and magnesium. There are 301 OEM, 255 ODM, 33 Self Patent. It is solid at room temperature. Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound.It is a white, caustic, alkaline, crystalline solid at room temperature. All of the specimens used for the experiments were cut from the same location of the corresponding cast specimen. Chemical and physical properties of calcium oxide. Calcium monoxide; Sources. It reacts with acids to make calcium salts. In cement: Chemical composition …C 4 AF, where C stands for calcium oxide (lime), S for silica, A for alumina, and F for iron oxide. 2Ca(s) + O2(g) → 2CaO(s) (calcium oxide) 3Ca(s) + N2(g) → Ca3N2(s) (calcium nitride) Reactivity towards Water. The next most important use of calcium oxide is in pollution control devices. Badal Kumar Mandal, in Nanobiomaterials in Antimicrobial Therapy, 2016. Calcium Oxide / Quicklime. It is readily attacked by air to form calcium oxides and calcium nitrides, and hence, it is never found free. Reacts vigorously with water (is formed alkaline solution).