*Soda Ash* `Na2CO3`
aka *Sodium Carbonate, Washing Soda, E500*
It’s a white powder/crystal that’s alkaline. Not the same as baking soda `NaHCO3`.
# *Main Types*
# *1. Light Soda Ash*
- *Form*: Fine powder
- *Use*: Detergents, chemicals, water treatment
# *2. Dense Soda Ash*
- *Form*: Heavy granules
- *Use*: Glass making, water softening. Less dusty.
Both are 99% `Na2CO3`
# *Key Uses*
**Industry** **Why It’s Used** **Example**
**1. Glass Making** Lowers melting point of sand Bottles, windows, mirrors
**2. Detergent + Soap** Softens water, boosts cleaning Omo, Ariel, bar soap
**3. Water Treatment** Raises pH, removes calcium/magnesium Borehole, pool, boiler water
**4. Food - E500** Acidity regulator, dough conditioner Noodles, pretzels, bread
**5. Chemical Industry**