He Strontium hydride (SrH2) is a molecule that is formed with a strontium atom (Sr) in the center and two hydrogen atoms accompanying it. It is also known as strontium dihydride.
The formula that defines this compound is SrH2. Because strontium is a very large atom compared to the two hydrogen atoms, and because of its distribution, a molecule with a dipole moment equal to zero is generated.
This means that its geometry is equal to a straight line, that the charges are distributed equally and therefore it is non-polar, and that it can be mixed with molecules of the same nature, such as carbon dioxide (CO2).
characteristics
Being a hydride, oxidation and reduction reactions can be done with this compound.
In addition, hydrogen gas (H2) and strontium hydroxide Sr (OH) 2 are formed in the solid state when interacting with water.
This strontium hydroxide is used in the refining of sugar and as an additive in plastics to stabilize its structure.
In addition, because of its natural affinity it is able to absorb polar gases such as carbon dioxide to form solids such as strontium carbonate.
The two compounds can be malignant for health if there is direct exposure to them, as they are irritating to the skin, eyes and respiratory system.
In case of having contact without protection it is necessary to go to a doctor to carry out a control on the state of health.
Properties
It has a molecular weight of 89,921 g / mol, of which 87 g / mol are of strontium and the rest of hydrogen. Its formal charge is equal to zero, so it is not an electrical agent.
It has a good affinity with non-polar substances, some examples of which are carbon dioxide and derivatives of hydrocarbons like methane.
Due to its weight, when forming bonds with some gases, the final product results in a solid.
Applications
Strontium hydride is not widely used because the properties it offers can easily be replaced by other compounds with greater accessibility than strontium.
If a rich source of this compound is found, it can be used to react with water and form strontium dihydroxide, which is used in the sugar industry and plastics as additives.
Despite not being well known, it is used with certain selectivity in research, especially in organic chemistry of heavy agents, studies of energy balance, thermodynamics, lasers, light spectra, among others.
The uses of chemical compounds are based on their chemical and mechanical properties, however, one of the most important factors to establish these uses are the imagination of the human being and the technical capacity of the person who uses it.
It is important to have knowledge not only of the nature of the elements, but of all the fundamental concepts that exist in nature with disciplines such as mathematics , physical , chemistry and biology .
References
- Simon, P., Moroshkin, P., Weller, L., Saß, A., & Weitz, M. (2013). Towards redistribution laser cooling of molecular gases: Production of candidate molecules SrH by laser ablation. Paper presented at the 8638 doi: 10.1117 / 12.2002379
- Peterson, D. T., & Nelson, S. O. (1980). equilibrium hydrogen pressures in the strontium-hydrogen system. Journal of the Less-Common Metals, 72 (2), 251-256. doi: 10.1016 / 0022-5088 (80) 90144-7
- Shayesteh, A., Walker, K.A., Gordon, I., Appadoo, D.R.T., & Bernath, P.F. (2004). New fourier transform infrared emission spectra of CaH and SrH: Combined isotopomer analyzes with CaD and SrD. Journal of Molecular Structure, 695 , 23-37. doi: 10.1016 / j.molstruc.2003.11.001
- Ober, J. A. (2016). strontium. Mining Engineering, 68 (7), 72-73.
- Kichigin, O. (2006). Study of polymer chelating sorbents with o-aminoazo-o-hydroxy chelating groups and their use for the preconcentration and extraction of strontium from natural, potable, and industrial waters. Journal of Analytical Chemistry, 61 (2), 114-118. doi: 10.1134 / S1061934806020043