Calcium ferrite. These attractions are strong and so require a large amount of energy to break. Burnt lime has by itself a high melting point of 2,570° C (4,660° F) and is therefore solid at steelmaking temperatures, but when it is mixed with the other oxides, they all melt together at lower… Read More; sugar production Calcium oxide CaO is a simple strong base, it's a base because of O^2- ion in it, usually a strong base has a high melting point.. crystal-structure ionic-compounds melting-point. Calcium oxide is frequently used to "lime" lake waters that have been acidified by acid rain it reacts with them and neutralizes acids in the lake. If you do not find the exact resolution you are looking for, then go for a native or higher resolution. Calcium Oxide CAS RN: 1305-78-8 Melting Point. Calcium oxide is usually made by thermal decomposition of materials such as limestone, or shell of shells (or other molluskic shells), containing calcium carbonate (CaCO3, calcite minerals) as lime kilns. Stability Stable, but absorbs carbon dioxide from the air. 2021-01-23. Exact Mass 71.95240. If dissolved in water (Ca(OH) 2) exhibits a pH of 12.5. Lv 4. Stability. High quality Slag Fused Refining Calcium Aluminate Low Melting Point For Steel Making from China, China's leading Calcium Aluminate product market, With strict quality control Calcium Aluminate factories, Producing high quality Slag Fused Refining Calcium Aluminate Low Melting Point For Steel Making products. Ionic bonds require high amounts of energy to break the strong electrostatic attractions between the ions, and this results in high melting/boiling points. Weight 72.0768. Calcium oxide has a melting point of $\ce{2700^\circ C}$ and sodium chloride has a melting point of $\pu{801^\circ C}$. calcium oxide A whitish, odourless crystal widely used in industry; it is poorly soluble in water, and reacts with water to form calcium hydroxide (CaOH), a base. The reaction is held in a rotary kiln. It has a melting point of 2614ºC and a boiling point of 2850ºC. Melting Point … 1 Structures Expand this section. Flash Point. Industrially, lumps of limestone are heated strongly in a furnace called a lime kiln leading to the decomposition of the limestone at around a temperature of 900 C to yield calcium oxide and carbon(IV) oxide. Create . 2570°C. gas chromatography (GC) (1) HPLC (1) Featured Industry. with calcium per oxide; Calcium per oxide-calcium hydr oxide mixt. The intermolecular forces binding one molecule to its neighbors are van der Waals dispersion forces or dipole-dipole interactions. If they have the same crystal structure and ions are about the same distance in each crystal, why is there such a big difference? Density. 2005-08-08. 3.3g/mL at 25°C(lit.) Purity. The melting point of magnesium oxide is several hundred Kelvin higher than aluminiumoxide. The study aims to address and overcome the existing hurdles and challenges in measuring the melting temperature of calcium oxide (CaO). The strength of these vary depending on the size of the molecules. Calcium oxide (formula CaO) is the main oxide. Contents. Structure, properties, spectra, suppliers and links for: Calcium oxide, 1305-78-8, 73018-51-6. It is commonly found in food additives, fungicides and insecticides, sewage treatments, glass, lubricants, building materials (plaster, mortar, bricks, cement and stucco), paper groups, and non-ferrous smelting and refining techniques. At 20°c, this element is present in solid-state. CaO has the cubic “halite” structure. Uses of Calcium oxide: Calcium oxide (CAS NO.1305-78-8) is used in water and sewage treatment to reduce acidity, to harden, as a flocculant and a coagulant, and in bleaching; in agriculture to improve acidic soils; and in pollution control, in gas scrubbers to desulfurize waste gases and to treat many liquid effluents. EINECS 234-584-5. Target: Calcium oxide (EC 215-138-9). powder. There's a graph of the melting points of period three oxides. Calcium oxide is soluble in water and glycerol. 2 Names and Identifiers Expand this section. It features a molar mass of 56.0774 g/mol, a melting point of 4,662° F (2,572° C) and a boiling point of 5,162° F (2,850° C). Calcium Oxide Molar Mass: 56.0774 g/mol; Calcium Oxide Melting Point: 4,662°F (2,572°C) Calcium Oxide Boiling Point: 5,162°F (2,850°C) Calcium Oxide Is Soluble In: Water, Glycerol; Calcium Oxide Solubility; Calcium Oxide ChemSpider ID: 5254016; Calcium Oxide PubChem CID: 14778; Calcium Oxide … IUPAC Name: chlorane. The melting point also defines a condition in which the solid and liquid can exist in equilibrium. 2850°C. Ionic compounds have high melting points: Explain why and explain why Calcium Oxide has a higher melting point than Lithium Chloride. calcium oxide method molten temperature Prior art date 1986-01-27 Legal status (The legal status is an assumption and is not a legal conclusion. Chemical Properties of Calcium Oxide . A) USES: Calcium oxide is an alkaline irritant that becomes an alkaline corrosive material (calcium hydroxide) after reacting with water. Search results for Calcium oxide 95 at Sigma-Aldrich. CAS Number: 78403-22-2. The enthalpy of formation (under standard conditions) is -635 kJ / mol. Alternative Name: CALCIUM PER OXIDE, 75%, REM CALCIUM HYDRO X-IDE & CALCIUM OXIDE, POWDER, -200 MESH; Calcium hydr oxide mixt. Cleaning Products (1) Cosmetics (1) Flavors and Fragrances (1) Food and Beverages (1) Personal Care (1) Pharmaceutical (2) Available for Sale. Purity/impurity profile as described in Section 1.2 3. Find chemicals information Calcium carbonate at guidechem, professional and easy to use. Literature data for calcium carbonate also show the melting point to be greater than 450 °C and grades of calcium oxide with up to 35% calcium carbonate are not expected to be significantly different to that given by the key study. Incompatible with water, moisture, fluorine, strong acids. ANALOGUE APPROACH JUSTIFICATION Calcium oxide will hydrolyse rapidly on moistened skin to calcium dihydroxide. 2613 deg C. CRC Handbook of Chemistry and Physics 94th Edition. Its melting point is 2572 °C and its boiling point is 2853 °C. Melting Point: 2,572° C (4,662° F) Boiling Point: 2850 °C (5162 °F) Density: 3.3 g/cm 3: Solubility in H2O: N/A: Exact Mass: 55.9575 g/mol: Monoisotopic Mass: 55.957506 Da: Calcium Oxide Health & Safety Information . CaCO 3 → CaO +CO 2. Calcium oxide is bonded by ionic bonds. 99%, 99.9%, 99.99%, 99.999%. It is a white, caustic, alkaline, crystalline solid at room temperature. Adding a heat will convert the solid into a liquid with no temperature change. *Please select more than one item to compare Molecular Weight: 223.83 g/mol. Calcium Symbol (Image to be added soon) Atomic Structure of Calcium. It involves thermal decomposition of the reactants at high temperatures but ensuring that the temperature is below melting point. I can't find any explanations for this on the Internet or in any of my A-level textbooks — perhaps this is something more advanced I haven't come across. Component Compounds: CID 23925 (Fe) CID 5460341 (Calcium) CID 962 (Water) Dates: Modify . Application. It is soluble in acids, glycerol and a sugar solution. Melting Point (°C) 0 - 100 (1) 201 - 300 (3) Application. what is calcium oxide melting point is important information accompanied by photo and HD pictures sourced from all websites in the world. Find more information on this substance at: … At the melting point the two phases of a substance, liquid and vapor, have identical free energies and therefore are equally likely to exist. EC Number 231-595-7. K) 4. 1 decade ago. Boiling point: According to Annex VII, section 7.3, column 2 of Regulation No. Ionic compounds are formed when electrostatic attractions form between oppositely charged ions. Melting and boiling points of these oxides are much lower than those of the metal oxides or silicon dioxide. 1 0. zero ™ Lv 7. Molecular Formula CaO2. This is done by heating this material above 825 ° C (1,517 ° F), a process called calcination or lime-burning, to liberate the carbon dioxide (CO2) molecule; leave the lime. 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