TBHQ, or tert-butylhydroquinone, is an organic, crystalline substance that is used as a preservative in many foods. It can be found as an additive in many unsaturated vegetable oils and in animal fats that are edible. More »

Salt is used as a preservative because of its low cost and ease of use compared to other preservative methods. Refrigeration requires electricity, while chemical preservatives can alter the taste of food and cause health... More »

Alum is used in food preparation to maintain the firmness of pickles, raise the acidic level of some baking sodas and as a crispness preservative in some pickled vegetable and fruit recipes. It is also used to remove sna... More »

Arsenic is used as a preservative, pesticide, herbicide and as a semiconductor enhancement. The toxic element is found in inorganic and organic compounds and can cause grave problems if humans come into contact with it. More »

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Imidazolidinyl urea is a chemical that is used as a preservative and an antimicrobial in a wide range of cosmetic and other personal care products, according to Chemical Land 21. Imidazolidinyl urea accomplishes its anti... More »

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Saltpeter, or potassium nitrate, is used as a food preservative and additive. It is also used for fertilizer and is a large component of gunpowder. It is also used as an oxidizing agent for rockets and fireworks. More »

Sodium metabisulfite is used as a food preservative, a medical antioxidant and a disinfectant for brewing and winemaking equipment. It prevents bacterial growth on equipment and in fermented alcoholic beverages, and it e... More »