What Is The Chemical Formula For Magnesium Stearate
Today we will talk about what is the chemical formula for magnesium stearate, but first we must clarify what this substance is, and everything that concerns it, the properties, in what functions it is applied, where it comes from, or how it is formed, in addition we will clarify what we are talking about when we talk about a chemical formula.
Chemical formulas
Generally, chemical compounds are formed by the combination of elements with other chemical elements, elements with compounds, and of these with other compounds, in order to identify the quantities of each component in the compounds, the proportion of each of the atoms of the elements, and of the constituent compounds, and the way in which these are united for the formation of the compound.
It is convenient to clarify the term formula to get to know what is the chemical formula for magnesium stearate, for all this was created a representation that is formed with the symbols of the chemical elements involved in the formation of the molecules of the new compound, these symbols are formed by one or two letters with subscripts in numbers that indicate the number of atoms of the element present in the compound.
These formulas can be of several, among them the molecular, the semi-developed, the developed, and the structural, each one of them with the necessary utility for the activity that has to be carried out.
What is the chemical formula for magnesium stearate?
According to the concept of chemical formulas, magnesium stearate has the formula C36H70MgO4, which when analyzed chemically is interpreted as:
C36, in the previous section it was clarified that the formula in chemistry is a representation of the constituent elements of the compound, the C according to the Periodic Table represents carbon, the number 36 in the subscript is the representation of the 36 carbon atoms contained in the magnesium stearate molecule.
H70, similarly this H represents hydrogen, of which there are 70 atoms in each molecule of this compound, represented with this subscript.
Mg, this combination of letters represents magnesium, not having the subscript, it is understood that the presence of the element in the molecules of the compound is 1 atom.
O4, universally this letter represents oxygen, in this case with subscript 4, it expresses the presence of 4 atoms of the element in the magnesium stearate molecules.
Having clarified the formula of the compound, let's go into details about it.
Magnesium Stearate
This is the name given to a type of salt that comes from stearic acid, which is identified by other names, among others magnesium octadecanoate, octadecanoic acid, magnesium distearate, and magnesium salt, this compound is formed by two equivalent parts of stearates each with the formula C18H36O2 and an ionized atom of magnesium Mg, this confirms what is the chemical formula for magnesium stearate, and because it is C36H70MgO4, which seen in its semi-developed form as Mg(C18H35O2)2, clearly evidences the two stearate anions (C18H35O2)2, and the Mg cation which in both types of formulas represents magnesium.
Fundamental properties of magnesium stearate
This compound is in powder form, with a white color, which has the peculiarity of not dissolving in water, and in other solutions, including alcohols, and ethers, it lacks odor, to the touch it presents a soapy texture, the molar mass of magnesium stearate is 591.27 g/mol, the density of this salt is 1.02 g/cm3, and its melting and boiling points are respectively 140, and 359.4 degrees Celsius.
What are the functions for which magnesium stearate is used?
Knowing what is the chemical formula for magnesium stearate, allows identifying the compound in order to know what it is used for as a substance, and it should be noted that companies such as Echemi have availability of this product as:
Magnesium stearate, 99%, in white crystalline powder.
https://www.echemi.com/produce/pr2205303150-magnesium-stearate-99-white-crystalline-powder-557-04-0.html
The applications of this substance are wide, being able to highlight:
Excipient in pharmacy products, tablets, pills, dietary supplements, and a variety of medicines, where it also plays an important role in maintaining the quality of the products, and benefiting costs, since it has properties that prevent the adherence of the ingredients in the preparation machinery, ensuring that each article contains the required amount of components, and saving the waste of raw material.
In cosmetology articles, it serves as a thickener, anti-caking agent, compacting agent, emulsifier and adhesive element.
Among other functions, it serves as an emulsifier, release agent, thickener, and lubricant.
For pigment suspension.
It is sometimes used as a source of magnesium.
At the food level, it has applications in the confectionery industry, but in combination with another range of additives.
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2026-06-16
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