Part 2 - Purification of pittala (brass)

First process.

Brass as well as bell-metal is to be purified and incinerated in the same way as copper.

Second process.

Brass is purified, if it is heated for five times and immersed each time into the juice of nirgundi, mixed with powdered turmeric.

Third process.

The three ksharas and five salts are to be subjected to bhavana for seven times with a sour vegetable juice. Leaves of brass and bell-metal are then to be smeared with the paste, referred to above, and subjected to heat by Gaja-puta. This results in the purification of the leaves.

Fourth process.

A lusty young goat of black colour is to be fed with powdered brass of an excellent colour, which, when come out of the goat’s stomach in the form of stool, is to be burnt in an earthen vessel with the result that excellent brass resembling gold of fourteen units of colour will come out of it. This brass, when properly incinerated, serves to strengthen the body. It is important both in alchemy and in medicine.