CALCIUM

Base Information

• Chemical Name: CALCIUM
• CAS No.: 14452-75-6
• Molecular Formula: CaH
• Molecular Weight: 41.0859
• Mol file: 14452-75-6.mol

Synonyms:Calciummonohydride

Chemical Property of CALCIUM

Chemical Property:

• PSA: 0.00000
• LogP: 0.22500
• Water Solubility.: Miscible with water.

Purity/Quality:

98%,99%, ^*data from raw suppliers

Calcium ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Description: Calcium is the chemical element with the symbol Ca and atomic number 20. It has an atomic weight of 40.078 g/mol. Calcium is the fifth most abundant dissolved ion in seawater by both molarity and mass, after Na+, Cl-, Mg2+ and SO42-. Calcium metal is quite reactive. It readily forms a white coating of calcium nitride (Ca3N2) in air at room temperature. It reacts with water and the metal burns in air with an orangered flame, forming largely the nitride, but some oxide. In the visible portion of the spectrum of many stars, including the Sun, strong absorption lines of singly ionized calcium ions are evident. Prominent among these are the H line at 3968.5 A ° and the K line at 3933.7 A°of singly ionized calcium, or Ca II. For the Sun, and stars with low temperatures, the prominence of the H and K lines is an indication of strong magnetic activity in the chromosphere. Measurement of periodic variations of these active regions can also be used to deduce the rotational periods of these stars.
• Physical properties: Before the nineteenth century, calcium and some other alkali earth metals were consideredminerals rather than metals because they readily formed hydroxides and, thus, were classedas alkaline substances (bases). Calcium and other alkali earth metals were mined as ores.Therefore, early chemists considered them earth elements.Calcium metal is moderately hard and has a lustrous, silvery color when freshly cut, but itsoon oxidizes to a dull gray. It is a good conductor of heat and electricity, but has few uses inthe electronics industries. Calcium is an important element for the nutrition of living organisms, particularly vertebrates. Vitamin D from foods, sunlight, and milk aids in the depositionof calcium in bones and teeth. The elemental metal is very reactive in water as it releases hydrogen from the water. It is somewhat less reactive in air. Its melting point is 839°C, its boilingpoint is 1484°C, its density is 1.54 g/cm3, and it has a cubic crystal structure.
• Uses: Calcium is an alkaline earth element that contributes toward bone and teeth formation, muscle contraction, and blood clotting. it occurs in milk, vegetables, and egg yolk. Calcium oxide was used in ancient times to make mortar for building with stone. Boththe metal and calcium compounds have many industrial as well as biological uses. Metalliccalcium is used as an alloy agent for copper and aluminum. It is also used to purify lead andis a reducing agent for beryllium.It is used to remove carbon and sulfur impurities during the processing of iron, producinga higher-grade iron for use in the manufacture of steel. It is also used as a reducing agent inthe preparation of several other important metals.Calcium is an important ingredient in the diets of all plants and animals. It is found in thesoft tissues and fluids of animals (e.g., blood) as well as in bones and teeth. Calcium makes upabout 2% of human body weight.Calcium is the main ingredient of Portland cement and is used to reduce the acid contentof soils. Calcium, plasma standard solution is used as a standard solution in analytical chemistry and atomic absorption spectroscopy. It is also used as a single-element standard solution for plasma emission spectrometry.
• Indications: Calcium is the principal extracellular electrolyte regulated by PTH, calcitonin, and D3. Extracellular calcium is a critical component of signal transduction across the plasma membrane, which regulates a wide spectrum of physiological events including muscle contraction, secretion of neurotransmitters and hormones, and the action of growth factors, cytokines, and protein hormones. Intracellular calcium is an important cofactor in many enzymatic reactions.

Technology Process of CALCIUM

There total 2 articles about CALCIUM which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

hydrogen (1333-74-0) + calcium (7440-70-2) → calcium monohydride (14452-75-6)

Guidance literature:

In neat (no solvent); Electric Arc; placing of Ca inside the central part of Al tube; placing of 2 stainlesssteel tube electrodes inside the two ends of the tube; sealing with BaF 2 windows; heating to 780°C in furnace, flowing of 1 Torr of H2 through the cell and dc discharging; monitoring by IR;

DOI:10.1016/j.molstruc.2003.11.001

Reference yield:

water (7732-18-5) + calcium (7440-70-2) → calcium monohydride (14452-75-6) + CaOH (12177-67-2)

Guidance literature:

In solid matrix; Irradiation (UV/VIS); photolysis of Ca and H2O isolated in a Kr-matrix at 15 K; not isolated; detected by UV;

upstream raw materials:

water

calcium

hydrogen

Refernces

• 1、 Douglas,Hauge,Margrave. "ELECTRONIC MATRIX ISOLATION SPECTROSCOPIC STUDIES OF THE GROUP IIA METAL-WATER PHOTOCHEMISTRY.". . p. 201 - 235. Retrieved 2008/10/08.