Antifreeze
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An antifreeze is an additive which lowers the freezing point of a water-based liquid. An antifreeze mixture is used to achieve freezing-point depression for cold environments. Common antifreezes also
Fluorescent green-dyed antifreeze is visible in the radiator header tank when car radiator cap is removed
Denatonium
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Denatonium is an organic ion and one of the bitterest chemical compounds known, with bitterness thresholds of 0.05 ppm for the benzoate and 0.01 ppm for the saccharinate. Commercially, it is usually a
The reverse side of a Duracell 2025 coin cell 2-pack sold in the United Kingdom, showing the Bitrex logo and an indicator of its "repulsive taste". The graphic is at the upper left side of the card.