Email this pagePrint this page Methylene Blue Reagent - APHA for Surfactants Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C2105 Aqueous Solution Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health2 Flammability0 Reactivity0 500 mls$20.85 each 12 x 500 mls$13.90 each 1 liter$35.15 each 6 x 1 liter$23.43 each MSDS for Methylene Blue Reagent - APHA for Surfactants