Aymeric Ramiere

Researcher in nanoscale heat transfer

Synthesis of inorganic compounds


Here, I detail the calculation to get the mass of each element to obtain a stoichiometric compound.

Compounds materials of the types \(A_x B_y\) or \(A_x B_y C_z\) that are binary and ternary materials respectively. The indexes x, y and z represent the stoichiometric amount of each element A, B, C, respectively.

Usually, the elements can be purchased individually. If we want to make high-quality materials, we should buy high-purity elements (e.g. 99.99% = 4N or 99.999% = 5N). The purity of the elements can alter the physical properties of the material.

Below, I made a script to calculate the individual mass of each element to obtain a certain total mass of compound. Detailed formulae and some steps for the synthesis of comounds are given is the document HERE.

Compound masses calculator


  1. Choose the element in the periodic table
  2. Enter the stoichiometric number and click "Add element"
  3. Do the first 2 steps for all the elements (up to 5 elements)
  4. Enter the total mass you want to obtain and click "Go" to get the mass of each element

H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Unq Unp Unh Uns Uno Une
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Name No. Weight Melt Boil Stoich

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