calcium hydride melting point

Heating the hydride strongly with chlorine, bromine, or iodine leads to incandescence. Calcium hydride is used primarily as a source of hydrogen, as a drying agent for liquids and gases, and as a reducing agent for metal oxides. Melting point: 816°C (under hydrogen gas) Boiling point: Density: 1700 kg m-3; The following are some synonyms of calcium dihydride: calcium dihydride; calcium(II) hydride; calcium dihydride; The oxidation number of calcium in calcium dihydride is 2. Boiling point - the temperature at which a liquid turns into a gas; Melting point - the temperature at which a solid turns into a liquid; See Standard state and enthalpy of formation, Gibbs free energy of formation, entropy and heat capacity for thermodynamic data for the same compounds. It contains 7.66% by weight of hydrogen and has been studied as a potential hydrogen storage medium. CaH2. Molecular Formula. Metal hydrides can release and absorb hydrogen at certain temperatures based on their thermodynamics. It has a molecular weight of 42,094 g / mol, has a melting point of 816 degrees Celsius and a density of 1.70 g / ml. For full table with Density, Liquid Denity at Melting Point and Water Solubility-rotate the screen! (BeX 2 behavior is new, compare to point 4 & 7 in Group I Summary) 6. Molecular formula: CaH 2. [Note: Readily absorbs CO 2 from the air to form calcium carbonate.] This page contains information on the chemical Calcium hydride including: 3 synonyms/identifiers; U.S. Code of Federal Regulations Title 49 Section 172 shipping regulations and proper shipping name; USDOT 2008 Emergency Response Guidebook initial response information. Insoluble in benzene. Chemical Name. Magnesium, calcium, strontium, and barium halides are essentially ionic and are soluble in water. ... Melting point/freezing Melting point/range: 190 °C - lit. Synthesis. : 7789-78-8 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratorychemicals, Industrial & for professional use only. 816 ° C melting point. They conduct electricity in molten state liberating a diatomic molecule of hydrogen gas at the anode. BeH 2 is a covalent polymer, magnesium hydride is partially ionic and the hydrides of calcium, strontium, and barium are very ionic and hydridic in their properties. Is oxidized in air. Calcium hydride Revision Date 17-Jan-2018 9. Melting Point (MP), Calcium hydride changes its state from solid to liquid at 816°C (1500.8°F or 1089.15K) Calcium hydride is a gray orthorhombic crystal or powder compound. CaH 2 is thus used as a drying agent, i.e. Density: 1.70 g/cm 3 Sensitive: Moisture EINECS: 232-189-2 Appearance: Greyish-white solid Structure of Calcium hydride (CAS NO.7789-78-8): Calcium hydride, 98% (metals basis excluding Mg), Alfa Aesar™ Structure Search; Print SDS. Availability. Product name : Calcium Hydride CAS-No. EC Number: 232-189-2 UNSPSC Code: 12352300 General description: Calcium hydride shows promising abilities as a hydrogen storage system for alkaline fuel cells. - Find MSDS or SDS, a COA, data sheets and more information. Calcium hydrate, Caustic lime, Hydrated lime, Slaked lime White, odorless powder. calcium hydride is strong reductive. ... Melting point/ range 816.0 °C Decomposition temperature 600 °C Density ca. Elements: Calcium (Ca), Hydrogen (H) Molecular weight: 42.094 g/mol. DTXSID60894886. a desiccant.. CaH 2 is a saline hydride, meaning that its structure is salt-like. Preparation. US2082134A US50569A US5056935A US2082134A US 2082134 A US2082134 A US 2082134A US 50569 A US50569 A US 50569A US 5056935 A US5056935 A US 5056935A US 2082134 A US2082134 A US 2082134A Authority US United States Prior art keywords hydrogen magnesium calcium calcium hydride retort Prior art date 1935-11-19 Legal status (The legal status is an assumption and is not a legal … CAS 7789-78-8, chemical formula CaH₂. Physical and chemical properties of calcium hydride . a desiccant.. CaH 2 is a saline hydride, meaning that its structure is salt-like. Calcium hydride is a set of crystals of white orthorhombic structure when it is pure. We say that such a body melts. ... Melting Point: 600°C (decomposition) CAS: 7789-78-8: Molecular Formula: CaH 2: Solubility Information: Calcium hydride for synthesis. Calcium hydride, 98% (metals basis excluding Mg), Alfa Aesar™ ... Melting Point: 600°C (decomposition) Quantity: 50g: Chemical Name or Material: Calcium hydride, Mg … 600° dec. Density. Ionic hydride has both high melting point and the boiling point as all metal compounds usually do They have high density since these are stable molecules. Synonyms. Melting point. What is the chemical reaction of Calcium hydride with water? Get global suppliers, vendor, prices, . CaH 2 has a density of 1.70 g/cm 3. 1.9 g/cm3 at 20.0 °C Water solubility (Not applicable) Soluble in water and alcohol. Calcium hydride is the chemical compound with the formula CaH 2.This grey powder (white if pure, which is rare) reacts vigorously with water liberating hydrogen gas. Molar volume: 24.761 cm³/mol It also reacts with alcohol (National Center for Biotechnology Information, S.F.). EINECS 232-189-2 Calcium hydride is a grey or white solid powder, insoluble in all solvents. Generally, it is rare to find it in this form so it usually has a grayish tint. IUPAC Name: Calcium hydride Molecular Formula: CaH 2 Molecular Weight: 42.093880 g/mol Melting Point: 190 °C(lit.) Calcium hydride may be made by the reaction of calcium metal with hydrogen gas. The melting point is specific for a given substance. Articles of Sodium hydride are included as well. If it is dissolved in water it reacts violently, producing hydrogen. Magnesium hydride is the chemical compound with the molecular formula MgH 2. Ion - type salt compounds. Calcium Hydride is generally immediately available in most volumes. Calcium hydride is the chemical compound with the formula CaH 2, and is therefore an alkaline earth hydride.This grey powder (white if pure, which is rare) reacts vigorously with water liberating hydrogen gas. The number of electrons in each of Calcium's shells is [2, 8, 8, 2] and its electron configuration is [Ar] 4s 2. Calcium hydride is used as an efficient drying agent for aprotic base-stable solvents like ethers and tertiary amines. Melting Point: 190 C (lit.) When silver fluoride is ground with CALCIUM HYDRIDE the mass becomes incandescent [Mellor 3:389 1946-47]. The alkali metals and the alkaline earth metals all form saline hydrides. barium chlorate, and perchlorates, i.e. The melting point is the highest temperature at which crystallization may occur. CaH 2 is thus used as a drying agent, i.e. barium bromate; chlorates, i.e. Calcium hydride (CaH2) CaH2. Calcium (atomic symbol: Ca, atomic number: 20) is a Block S, Group 2, Period 4 element with an atomic weight of 40.078. Calcium Hydride: white crystals; insoluble in water; used in the production of chromium, titanium, and zirconium through the Hydromet process. Calcium hydride. White powder. Mixtures of the hydride with various bromates, i.e. CaH2 - CALCIUM HYDRIDE. Storage & Sensitivity. 1.900. It has a molecular mass of 42.094 g/mol, a melting point of 816 degrees celcius, ad a density of 1.70 g/ml. Calcium is a solid at atmospheric presure up to the melting point of 842 0C. It is also a temperature at which a solid (crystal) turns into a liquid. See more Calcium products. A strong reducing agent, reacts with water and acids. It reacts vigorously with water and alcohols. Calcium hydride CaH 2 chemical formula, molecular weight 42.096. Properties of calcium hydride: White, melts without decomposition in the atmosphere of hydrogen, at further heating decomposes. American Elements offers a broad range of products for hydrogen storage research, advanced fuel cells and battery applications. Solubility. CaH 2 is sold by various chemical suppliers. It contains 7.66% by weight of hydrogen and has been studied as a potential hydrogen storage medium. Dangers and reactivity. Chemsrc provides Sodium hydride(CAS#:7646-69-7) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Ambient temperatures. The thermochemical energy storage properties of calcium hydride (CaH2) destabilised with either silicon (Si) or CaxSiy compounds at various molar rati… HSDB 8095. Figure 3: calcium hydride. Physical and chemical properties Physical State Solid Appearance Grey Odor Odorless Odor Threshold No information available pH No information available Melting Point/Range 675 °C / 1247 °F Boiling Point/Range No information available Flash Point No information available Evaporation Rate Not applicable From Wikipedia. K [35,, ]. Heating melting point less than they decomposition, with the water violent reaction of hydrogen released H 2 O CaH 2 +2 = Ca (OH) 2 +2 H 2? Shop a large selection of Calcium products and learn more about Calcium hydride, 90-95%, Alfa Aesar™: Metals Salts and Inorganics . Also known as: Calcium dihydride. Calcium dihydride; Calcium(II) hydride; CAS No. 7789-78-8. 42.09390 CaH2 + 2H2O = Ca(OH)2 + 2H2 The melting point depends on the pressure. Molecular Weight. Hydrogen can easily be generated from renewable energy sources and is the most abundant element in … Application: Calcium hydride has been used as a drying agent for organic solvents. For example, the melting point of ice (frozen water) is 0 °C. Applications. BuyersGuideChem provides reliable information about Calcium hydride (7789-78-8) like chemical properties, structure, melting point density, molecular formula, molecular weight, physical properties, toxicity information. Reacts violently, producing hydrogen a desiccant.. CaH 2 has a grayish tint available!.. CaH 2 is a saline hydride, 90-95 %, Alfa Aesar™: metals and..., Alfa Aesar™ structure Search ; Print SDS essentially ionic and are soluble in water it reacts,! Potential hydrogen storage medium at which a solid ( crystal ) turns into a Liquid meaning... Powder, insoluble in all solvents frozen water ) is 0 °C producing hydrogen it also reacts alcohol! Are soluble in water it reacts violently, producing hydrogen °C ( lit. ) it also with!, it is rare to find it in this form so it has. Also reacts with alcohol ( National Center for Biotechnology Information, S.F..... 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Of 842 0C hydrogen gas shop a large selection of calcium products and learn more about calcium with. They conduct electricity in molten state liberating a diatomic molecule of hydrogen, at further decomposes! Are essentially ionic and are soluble in water it reacts violently, producing hydrogen molecule of hydrogen and been. Is a set of crystals of white orthorhombic structure when it is also a temperature which... Form calcium carbonate. has a Molecular mass of 42.094 g/mol, a COA, data and., ad a density of 1.70 g/cm 3 dissolved in water for full table with density, Denity... Solid ( crystal ) turns into a Liquid gas at the anode the screen calcium products learn! Of crystals of white orthorhombic structure when it is dissolved in water reacts! When silver fluoride is ground with calcium hydride is generally immediately available in volumes! Readily absorbs CO 2 from the air to form calcium carbonate. metals basis excluding Mg,...

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