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Calcium nitride is formed along with the oxide, CaO, when calcium burns in air. It can be produced by direct reaction of the elements: [3] 3 Ca + N 2 → Ca 3 N 2. It reacts with water or even the moisture in air to give ammonia and calcium hydroxide: [4] Ca 3 N 2 + 6 H 2 O → 3 Ca (OH) 2 + 2 NH 3. Like sodium oxide, calcium nitride absorbs ...
Calcium nitrite is widely used in concrete for high-rise construction, highways, bridges, railroads, airports, and large-scale hydraulics. It also might enable coastal areas to use chloride-containing sea sand in concrete. [7] Calcium nitrite is also used as a heavy oil detergent and in pharmaceuticals, dyes and metallurgy industries.
Calcium nitrate is a very common coagulant in latex production, especially in dipping processes. Dissolved calcium nitrate is a part of the dipping bath solution. The warm former is dipped into the coagulation liquid and a thin film of the dipping liquid remains on the former. When now dipping the former into the latex the calcium nitrate will ...
A new pill combining low doses of three different anti-hypertensive medications surpassed the standard care for high blood pressure using one anti-hypertensive drug, a new study showed.
Sodium nitride and potassium nitride has been generated, but remains a laboratory curiosity. The nitrides of the alkaline earth metals that have the formula M 3 N 2 are however numerous. Examples include beryllium nitride (Be 3 N 2), magnesium nitride (Mg 3 N 2), calcium nitride (Ca 3 N 2), and strontium nitride (Sr 3 N 2). The nitrides of ...
Nitriding. A modern computerised nitriding furnace. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. These processes are most commonly used on low-alloy steels. They are also used on titanium, aluminium and molybdenum.
Calcium carbide is produced industrially in an electric arc furnace from a mixture of lime and coke at approximately 2,200 °C (3,990 °F). [5] This is an endothermic reaction requiring 110 kilocalories (460 kJ) per mole [6] and high temperatures to drive off the carbon monoxide. This method has not changed since its invention in 1892: The high ...
Cadmium nitrate is prepared by dissolving cadmium metal or its oxide, hydroxide, or carbonate, in nitric acid followed by crystallization: CdO + 2HNO3 → Cd (NO3)2 + H2O. CdCO3 + 2 HNO3 → Cd (NO3)2 + CO2 + H2O. Cd + 4HNO3 → 2NO2 + 2 H2O + Cd (NO3)2.