Science, Tech, Math › Science How to Prepare a Sodium Hydroxide or NaOH Solution Share Flipboard Email Print Laguna Design/Getty Images Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate by Anne Marie Helmenstine, Ph.D. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Updated September 26, 2018 Sodium hydroxide is a common and useful strong base. Special care is required to prepare a solution of sodium hydroxide or NaOH in water because considerable heat is liberated by the exothermic reaction. The solution may splatter or boil. Here is how to make a sodium hydroxide solution safely, along with recipes for several common concentrations of NaOH solution. Amount of NaOH to Make Sodium Hydroxide Solution Prepare solutions of sodium hydroxide using this handy reference table which lists the amount of solute (solid NaOH) that is used to make 1 L of base solution. Follow these lab safety guidelines: Don't touch sodium hydroxide! It is caustic and could cause chemical burns. If you do get NaOH on your skin, immediately rinse it with a large volume of water. Another option is to neutralize any base on the skin with a weak acid, such as vinegar, and then rinse with water.Stir the sodium hydroxide, a little at a time, into a large volume of water and then dilute the solution to make one liter. Add sodium hydroxide to water--do not add water to solid sodium hydroxide.Be sure to use borosilicate glass (e.g., Pyrex) and consider immersing the container in a bucket of ice to keep the heat down. Inspect the glassware prior to use to make sure it is free from any cracks, scratches or chips that would indicate a weakness in the glass. If you use a different type of glass or weak glass, there's a chance the temperature change could cause it to shatter.Wear safety goggles and gloves since there is a chance the sodium hydroxide solution could splash up or the glassware could break. Concentrated solution of sodium hydroxide are corrosive and should be handled with care. Recipes for Common NaOH Solutions To prepare these recipes, start with 1 liter of water and slowly stir in the solid NaOH. A magnetic stir bar is helpful if you have one. M of solution Amount of NaOH Sodium Hydroxide 6 M 240 g NaOH 3 M 120 g F.W. 40.00 1 M 40 g 0.5 M 20 g 0.1 M 4.0 g Continue Reading How to Make and Use Chemical Piranha Solution (Safely) Here Is the Recipe for a 0.5 M EDTA Solution Here's How to Make and Use Aqua Regia Solution Where to Buy Sodium Hydroxide or Lye How to Prepare Common Acid Solutions Easy Method to Prepare a Chemical Solution How to Make Disappearing Ink How to Clean Laboratory Glassware Know the Names and Structures of 10 Common Bases How to Make Biodiesel From Vegetable Oil Drain Cleaner Can Dissolve Glass Adding Acid to Water Safely How to Make a Phosphate Buffer Solution Make Your Own pH Indicator With Red Cabbage Tips on How to Perform the Magic Genie in a Bottle Effect What Is a Base in Chemistry?