Washing soda, also known as sodium carbonate or soda ash, is a white powder used in homes and manufacturing industries. In homes, washing soda is useful in removing stains, such as those from grease and oil, and softening hard water for laundering.
To make washing soda, clean a lidded jar, label it, bake baking soda for two hours, and store it in the jar. This 2 1/2-hour process requires an oven, a baking sheet, baking soda, a lidded jar, water, soap, an adhesive label, a marker, oven mitts and a large spoon.
The chemical name for washing soda, also called sodium carbonate, is Na2CO3. Another name for sodium carbonate is soda ash, which also has a pH of 11.6. This compound is white, odorless and soluble in water.
Turn baking soda into washing soda by placing a few tablespoons of baking soda on a metal baking sheet and heating it in an oven at 200 degrees Fahrenheit for around an hour. After an hour, allow the washing soda to cool completely before using it.
To wash your hair with baking soda, make a paste using baking soda and water, wet your hair thoroughly, part it into four sections and rub the paste into your scalp as you apply it to the sections. Let it sit in your hair for several minutes, and then rinse it out.
Washing soda is a compound of sodium, carbon and oxygen, bound together as sodium carbonate. A common source of sodium carbonate is the ashes of plants. Another source is sodium chloride, or table salt.
Baking soda is appropriate for use in a washing machine, according to Arm & Hammer. Baking soda can be used to remove smells and stains from clothing or to clean the machine itself.