Manusmriti

siva.sh/manusmriti/5/114

ताम्रायस्कांस्यरैत्यानां त्रपुणः सीसकस्य च । शौचं यथार्हं कर्तव्यं क्षाराम्लोदकवारिभिः ॥ ११४ ॥

sanskrit

Copper, iron, brass, pewter, tin, and lead must be cleansed, as may be suitable (for each particular case), by alkaline (substances), acids or water.

english translation

tAmrAyaskAMsyaraityAnAM trapuNaH sIsakasya ca | zaucaM yathArhaM kartavyaM kSArAmlodakavAribhiH || 114 ||

hk transliteration by Sanscript