Lauha (Iron) Bhasma is one of the important metallic preparations used in Āyurveda for therapeutic purposes. A popular method for the preparation of
lauha bhasma is trividha pāka method and this method was employed in this study. Āyurvedic purification (śodhanā) of iron was done by heating iron up to
red hot and quenching in various prescribed liquid media. Then it was subjected for sun drying with triphala decoction (Bhānupāka). Then it was taken in
iron vessel with triphala decoction and exposed to intense heat until total decoction was evaporated (sthālipāka). Then incineration cycles were given
(Putapāka). It took 20 incineration cycles for the procurement of desired Bhasma which fulfils the set standards of the classical literature like color (pakva
zambhū phala, purple), floating on water (vāritara), fineness (rekhāpūrna) etc. It was found that there was substantial weight increase in the final product. It
took about 100 working days for the preparation.
Lauha Bhasma, Muffle furnace,
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