Sodium lauryl sulphate

Sodium stearate

Cetyl trimethyl ammonium bromide

Sodium dodecyl benzene sulphonate

$\mathrm{CaSO}_4$

$\mathrm{CaSO}_4 \cdot \frac{1}{2} \mathrm{H}_2 \mathrm{O}$

$\mathrm{CaSO}_4 \cdot \mathrm{H}_2 \mathrm{O}$

$\mathrm{CaSO}_4 \cdot 2 \mathrm{H}_2 \mathrm{O}$

thermal decomposition of ammonium dichromate

treating aqueous solution of $\mathrm{NH}_4 \mathrm{Cl}$ and $\mathrm{NaNO}_2$

liquefaction and fractional distillation of liquid air

thermal decomposition of sodium azide

CaO

$\mathrm{Al}_2 \mathrm{O}_3$

$\mathrm{Na}_2 \mathrm{O}$

BaO