how much oxalic acid in bar keepers friend
Bar Keepers Friend According to the 2015 material safety data sheet, the ingredients are feldspar, linear sodium dodecyl benzene sulfonate (DDBSA), and oxalic acid.[13] Unlike more abrasive cleaning powders such as Comet and Ajax, Bar Keepers Friend uses oxalic acid as its primary active ingredient.[14] A similar abrasive cleaning product, Zud Heavy Duty Cleanser, also contains oxalic acid.[15] Prolonged use and extended skin contact may cause irritation,[13] peeling and contact dermatitis, which is avoided by wearing gloves. The product can also be an eye irritant.[13]
Everclear (alcohol) Ethanol cannot be concentrated by ordinary distillation to greater than approximately 96% by weight because at that concentration, the vapor has the same ratio of water to alcohol as the liquid, a phenomenon known as azeotropy.[3] The highest concentration of ethanol generally available for human consumption is 190 proof (95% alcohol by volume), which is about 92.4% ethanol by weight.