EMS 15732-05 Carson's Phosphate Buffered Formalin, 500 mL Go to amazon.com Related posts Top recommendation for buffered formalin Feature500mLSold in eachReagent, C DescriptionMillonig's phosphate buffered formalin as modified by Carson, Martin and Lynn, by using 4% formalin in 0.1M sodium phosphate monobasic with sodium hydroxide to pH 7.2.