Ethnographic Arms & Armour - View Single Post - Black stain spreading on keris during vinegar cleaning

kai · 27th March 2020, 10:48 PM

I agree that even possibly elevated amounts of arsenic in rice are a red herring for the salt+sulphur recipe. While the salt is acting as a corrosive agent, the stain will result from reactive sulphur compounds.

Regards,
Kai

27th March 2020, 10:48 PM	#55
kai Member Join Date: Apr 2005 Posts: 3,218	I agree that even possibly elevated amounts of arsenic in rice are a red herring for the salt+sulphur recipe. While the salt is acting as a corrosive agent, the stain will result from reactive sulphur compounds. Regards, Kai