Difference Between Washing Soda & Washing Powder


Washing powder is none other than powdered soap used as laundry detergent. Washing soda, on the other hand, is a caustic powder that can soften water.

Other Names

  • Washing soda is also known as sodium carbonate, soda ash or soda crystal. Washing powder might also be called soap powder.

Complementary Products

  • Washing soda can help boost the effectiveness of washing powder or liquid detergent. Indeed, a homemade powdered laundry detergent can be made of the soda, borax and grated bar laundry soap.

Function in Laundry

  • Washing soda interacts with hard water minerals, allowing the detergent to work better. The soda also removes stains like oil and lipstick. Sodium carbonate is one of the main active ingredients in oxygen stain removers.

Washing Soda pH

  • The pH of washing soda is 11; pure water has a pH of 7. The 11 pH makes washing soda highly alkaline. You should wear gloves when handling washing soda.


  • Washing soda, like laundry detergent, can be found in regular grocery stores. In addition, washing soda, under its chemical name of sodium carbonate, can be found in pool supply stores.

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