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Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration which confirms the presence of
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$\mathrm{N}$ and $\mathrm{S}$
Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration, which eonfirms the presence of $\mathrm{N}$ and $\mathrm{S}$.
$\mathrm{Na}+\mathrm{C}+\mathrm{N}+\mathrm{S} \longrightarrow \mathrm{NaCNS}$ (Sodium thiocyanate)
$\mathrm{Fe}^{3+}+3 \mathrm{CNS}^{-} \longrightarrow \mathrm{Fe}(\mathrm{CNS})_{3}$
Fes pet.
$\mathrm{Na}+\mathrm{C}+\mathrm{N}+\mathrm{S} \longrightarrow \mathrm{NaCNS}$ (Sodium thiocyanate)
$\mathrm{Fe}^{3+}+3 \mathrm{CNS}^{-} \longrightarrow \mathrm{Fe}(\mathrm{CNS})_{3}$
Fes pet.
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