Feb 27,2023

What is a bath bomb?

If you don’t know what a bath bomb is, it’s essentially a ball made primarily from sodium bicarbonate (baking soda), which is combined with additional ingredients such as essential oils, fragrances, and other additives.
These balls are then dropped into the tub filled with hot water, releasing an amazing aroma of essential oils, as well as helping to give your skin a spa-like treatment when you soak in the tub afterwards.

The relationship between water temperature and dissolution

When a bath bomb is placed in warm water, the reaction between the citric acid and baking soda is accelerated. The molecules in warm water move faster and collide more frequently, leading to a faster rate of reaction. As a bath bombs placed in warm water will dissolve more quickly than those placed in cold water.

Other factors affecting dissolution rate

The size and composition of the bath bomb also affect how quickly it dissolves. A bath bomb with a larger surface area dissolves faster than a bath bomb with a smaller surface area because the water touches a larger area of the bath bomb. Bath bombs with high concentrations of citric acid dissolve faster than bath bombs with low concentrations.

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