(Last Updated on : 15/02/2017)
Lead is produced abundantly in India in the shape of the sulphide called galena. Galena is sold in the markets under the name of Surma, and is much used by the natives as a collyrium. The red oxide of lead, or minium, was manufactured by the ancient Hindus
. It is known by the name of Sindura
, and is used by all married Hindu women as a paint for the forehead.
Processing of Lead
Lead is purified and reduced to powder in the same way as tin. Lead thus prepared is a gritty powder of a greyish red colour. Chemically it is an impure carbonate of lead. Its properties are said to be similar to those of tin.
Benefits of Lead
Lead is seldom used internally except as a component of compound medicine
s containing a number of other metals. A probe made of lead is preferred for applying collyria to the eyelids.
Dose of Lead in Medicine
The red oxide of lead, called Sindura
is used externally in eruptive skin diseases
in the form of ointment or liniment. Thus Sindura
and powdered black pepper
mixed with butter is recommended to be applied in chronic eczema
An oil called Sinduradya Taila
is thus prepared. Take mustard
oil 1 seer, water 4 seers, minium 4 tolas and cumin
seeds 8 tolas. Boil together in the usual way. This oil is used in eczema and other eruptive skin diseases.
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