Firstly, mice are very fond of rice; therefore, it makes it easier for the animals to either chew the substance on-site or transport it back to the nesting place to be shared with other members of the colony.
Secondly, dry rice acts as a substrate which helps to absorb any powdered materials such as baking soda or plaster.Rice
The Chemical Mechanism: Baking Soda and Rodent Physiology
The most widely used form of this remedy uses a mixture of half dry rice and baking soda (sodium bicarbonate). In order to understand how this works, it is important to know about the biological peculiarities of a mouse’s body.
The “No-Burp” Biological Defect
Unlike humans, mice and rats have an anatomical limitation that prevents them from regurgitating anything they ingest. They lack an effective gag reflex and cannot vomit. In addition, a mouse’s stomach is divided in a way that restricts the movement of air or solid contents back into the esophagus.Science
When the mouse eats baking soda, it begins to interact with the hydrochloric acid (HCl) in the mouse’s stomach. This chemical reaction is identical to the one you see in a school science volcano.
In a human, the resulting carbon dioxide is simply expelled, while in mice, it accumulates in the digestive tract. Due to the inability to release the gas, the pressure mounts to the point where the insides are damaged or fatally blocked. It is a fast process but occurs out of sight of the baits as it takes some time for maximum pressure to be attained.
The Alternatives: Plaster of Paris and Salt
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