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HOW TO GET HOME MADE WASHING SODA OUT OF BAKING SODA?
You can get you own washing soda - Na2CO3 out of baking soda - NaHCO3. Preheat your oven to to approximately 390° - 400° Fahrenheit. Pour baking soda onto a baking sheet and put it into the oven. Let it bake for 60 minutes and you have made your home made washing soda. Store it into airtight container.