Which country is used for fumigation of silver falls with fumes of sulphur?
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Explanation:
sulphuryl fluoride has been developed as an effective fumigant for controlling dry wood termites. This gas has outstanding dispersion and penetrating qualities which permit it to infiltrate termite tunnels and crevices and destroy the insects. Sulphuryl fluoride does not escape through plastic sheets used in structural fumigation as rapidly as methyl bromide or other organic fumigants. Because this gas is odourless, chloropicrin, discharged separately, is recorernended as a warning agent.
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Explanation:
the yantra was used for fumigation of gold leveas or silver foils with fumes of silpher or other substance
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