Washing soda powder is sodium carbonate (also called soda ash light), a strong alkaline salt used mainly as a laundry booster, hard-water softener and stain remover. Add a single tablespoon to a bucket of water with your detergent and clothes to lift dirt and grease more effectively. Just remember it is a cleaning and industrial compound, not a food item \u2014 never use it for cooking.
What washing soda powder is used for
Sodium carbonate is one of the most versatile household and industrial chemicals. The Azlok 1 kg pack is a handy trial size for anyone who wants to try it at home or in a small business. Common uses include:
- Laundry booster: Works alongside your regular detergent to cut through oil, grease and stubborn stains.
- Water softener: Neutralises the minerals in hard water, so soap lathers better and less detergent is wasted.
- Soap and detergent making: Used as a builder or filler that gives a smoother finish.
- Dye fixing: A key ingredient in the dyeing trade to help reactive, procion and cold-brand dyes bond with cotton fabrics.
- Pool alkalinity: Raises the pH of swimming-pool water to a basic level.
- Industrial uses: Glass manufacture, pulp and paper, metallurgy, and water and effluent treatment.
How to use it for laundry
For everyday washing, the method is simple and works with your normal detergent.
- Fill a bucket with water and add your usual detergent.
- Stir in about one tablespoon of washing soda powder.
- Add the clothes and let them soak, then wash as usual.
This is ideal for white clothes, where the extra alkalinity brightens fabric and shifts grime. For coloured or printed garments, always test first. Dab a small amount on a hidden corner to check that the colour does not run or fade before washing the whole piece. Some dyes are not colour-fast against strong alkalis.
Softening hard water and removing stains
If you live in an area with hard water, you will notice soap forming a scum and clothes feeling stiff. A spoon of washing soda in the wash water binds those minerals, letting your detergent do its job. It also helps loosen greasy, oily and food stains that plain detergent struggles with. For pool use, roughly 1\u20132 kg treats a large pool holding around 1,000 litres, but always test pH gradually rather than dumping it all at once.
Safety notes you should not skip
Washing soda is strongly alkaline, so treat it with respect. It is strictly not for cooking or eating.
- Wear a face mask and hand gloves while handling the powder, and avoid breathing in the fine dust.
- If it touches your skin, nose or eyes, rinse thoroughly with plenty of water for about five minutes.
- Keep it well away from children and pets.
- Do not mix it randomly with other cleaning chemicals.
- Handle it in a ventilated area to avoid inhaling airborne powder.
Buying and storage tips
The Azlok Washing Soda Powder 1 kg Super Trial Pack is priced at around \u20b9181, which makes it an affordable way to test how it fits into your laundry routine or DIY projects before buying larger quantities. To keep it working well:
- Store in a cool, dry place away from direct sunlight.
- Keep the pouch sealed, or transfer any excess to an airtight bottle or a zip-lock pouch, so it does not absorb moisture and clump.
- Label the container clearly so it is never mistaken for a kitchen ingredient.
Kept dry and sealed, washing soda has a long shelf life, so a single pack goes a long way.
FAQ
Is washing soda the same as baking soda?
No. Washing soda is sodium carbonate and is far more alkaline. Baking soda is sodium bicarbonate and is food-safe. They are different compounds \u2014 do not swap one for the other, and never use washing soda in food.
How much washing soda should I add to a laundry bucket?
About one tablespoon per bucket of water is enough as a booster alongside your usual detergent. Use it mildly, especially with coloured clothes.
Can I use it on coloured clothes?
Only after testing. Apply a little to a hidden part of the garment and check that the colour stays fast before washing the whole item. It is safest on whites.
Does washing soda soften hard water?
Yes. It binds the minerals that cause hardness, so your detergent lathers better and rinses cleaner.
Is it safe to touch with bare hands?
It is best to wear gloves. The powder is alkaline and can dry or irritate skin. If it gets on your skin or in your eyes, rinse with water for around five minutes.